TY  - CONF
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
AU  - Ivanov, Toni
AU  - Baltić, Marija
AU  - Simonović, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4257
AB  - Open systems, that include both water and air fractions, and whose behavior is highly dominated by the interaction between these two phases are particularly important and interesting for many industrial applications (e.g. energy production, maritime and aerial transport, food resources). Since the physics governing these flows is highly complex and incorporates many unexplained phenomena, novel physical models, as well as measurement techniques, are still being developed and tested in accordance with the particular problem that is being analyzed. Although real engineering cases often involve wind-wave interactions, stochastic waves, geometrically irregular boundaries, turbulence, wave interference etc, the main interests of this work are the effects of oncoming wind speed as well as adopted turbulence model on the initially still water surface and consequential wave formation. These aspects have to be considered in the development of amphibian aircrafts or ekranoplans since they take off from water surfaces while later aircrafts operate in the vicinity of water during the entire flight. Wave formation is also extremely important
for off-shore wind turbines. For the sake of simplicity, the conducted numerical simulations are planar. The fluids (air and water) are considered incompressible, while the flow is unsteady and turbulent. The unsteady Reynolds averaged Navier-Stokes equations are closed by one of the two two-equation turbulence models based on the Boussinesq hypothesis: realizable k-ε or k-ω SST model. The investigated wind speeds are 30 m/s, 50 m/s and 80 m/s, while the results are presented in the shape of water volume fractions. As expected, the increase in wind speed induces higher amplitude waves, when the effects of turbulence models also become important.
PB  - International Association for Hydro-Environment Engineering and Research (IAHR)
C3  - Abstract Book - 6th IAHR Europe Congress
T1  - The effects of wind speed and turbulence model on wave formation in open systems
EP  - 860
SP  - 859
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4257
ER  - 

@conference{
author = "Svorcan, Jelena and Peković, Ognjen and Ivanov, Toni and Baltić, Marija and Simonović, Aleksandar",
year = "2021",
abstract = "Open systems, that include both water and air fractions, and whose behavior is highly dominated by the interaction between these two phases are particularly important and interesting for many industrial applications (e.g. energy production, maritime and aerial transport, food resources). Since the physics governing these flows is highly complex and incorporates many unexplained phenomena, novel physical models, as well as measurement techniques, are still being developed and tested in accordance with the particular problem that is being analyzed. Although real engineering cases often involve wind-wave interactions, stochastic waves, geometrically irregular boundaries, turbulence, wave interference etc, the main interests of this work are the effects of oncoming wind speed as well as adopted turbulence model on the initially still water surface and consequential wave formation. These aspects have to be considered in the development of amphibian aircrafts or ekranoplans since they take off from water surfaces while later aircrafts operate in the vicinity of water during the entire flight. Wave formation is also extremely important
for off-shore wind turbines. For the sake of simplicity, the conducted numerical simulations are planar. The fluids (air and water) are considered incompressible, while the flow is unsteady and turbulent. The unsteady Reynolds averaged Navier-Stokes equations are closed by one of the two two-equation turbulence models based on the Boussinesq hypothesis: realizable k-ε or k-ω SST model. The investigated wind speeds are 30 m/s, 50 m/s and 80 m/s, while the results are presented in the shape of water volume fractions. As expected, the increase in wind speed induces higher amplitude waves, when the effects of turbulence models also become important.",
publisher = "International Association for Hydro-Environment Engineering and Research (IAHR)",
journal = "Abstract Book - 6th IAHR Europe Congress",
title = "The effects of wind speed and turbulence model on wave formation in open systems",
pages = "860-859",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4257"
}

Svorcan, J., Peković, O., Ivanov, T., Baltić, M.,& Simonović, A.. (2021). The effects of wind speed and turbulence model on wave formation in open systems. in Abstract Book - 6th IAHR Europe Congress
International Association for Hydro-Environment Engineering and Research (IAHR)., 859-860.
https://hdl.handle.net/21.15107/rcub_machinery_4257

Svorcan J, Peković O, Ivanov T, Baltić M, Simonović A. The effects of wind speed and turbulence model on wave formation in open systems. in Abstract Book - 6th IAHR Europe Congress. 2021;:859-860.
https://hdl.handle.net/21.15107/rcub_machinery_4257 .

Svorcan, Jelena, Peković, Ognjen, Ivanov, Toni, Baltić, Marija, Simonović, Aleksandar, "The effects of wind speed and turbulence model on wave formation in open systems" in Abstract Book - 6th IAHR Europe Congress (2021):859-860,
https://hdl.handle.net/21.15107/rcub_machinery_4257 .

TY  - CONF
AU  - Baltić, Marija
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
AU  - Ivanov, Toni
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3270
AB  - The paper presents the comparative analysis of the dynamic behavior of two rectangular plates of different material, aluminum and composite. While their global geometric dimensions (length, width and thickness) are similar, their inner structures are quite different. Whereas aluminum plate can be considered isotropic, the composite plate is a unidirectional carbon-epoxy laminate. Modal characteristics of the two plates were determined both numerically and experimentally and a comparative analysis of the obtained results was performed. Responses of the plates were documented by an optical, contactless 3D digital image correlation (DIC) system that contains a set of high-speed cameras capable of recording the movement of the white-and-black stochastic pattern applied to the upper surfaces of the plates. Numerical simulations were performed by the finite element method (FEM) in the commercial software package ANSYS. The plates were excited by a modal hammer and allowed to freely oscillate. In order to determine the natural frequencies of the plates the recorded time-domain responses were post-processed, i.e. converted to the frequency domain by fast Fourier transform (FFT). The first three natural modes were successfully experimentally established and compared to the corresponding numerical values. Since the differences between the two sets of results are less than 5%, the applied experimental technique can be considered valid and suitable for a wide range of engineering problems involving vibrations.
PB  - Springer International Publishing Ag, Cham
C3  - Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
T1  - Comparative Numerical and Experimental Modal Analysis of Aluminum and Composite Plates
EP  - 75
SP  - 61
VL  - 90
DO  - 10.1007/978-3-030-30853-7_4
ER  - 

@conference{
author = "Baltić, Marija and Svorcan, Jelena and Peković, Ognjen and Ivanov, Toni",
year = "2020",
abstract = "The paper presents the comparative analysis of the dynamic behavior of two rectangular plates of different material, aluminum and composite. While their global geometric dimensions (length, width and thickness) are similar, their inner structures are quite different. Whereas aluminum plate can be considered isotropic, the composite plate is a unidirectional carbon-epoxy laminate. Modal characteristics of the two plates were determined both numerically and experimentally and a comparative analysis of the obtained results was performed. Responses of the plates were documented by an optical, contactless 3D digital image correlation (DIC) system that contains a set of high-speed cameras capable of recording the movement of the white-and-black stochastic pattern applied to the upper surfaces of the plates. Numerical simulations were performed by the finite element method (FEM) in the commercial software package ANSYS. The plates were excited by a modal hammer and allowed to freely oscillate. In order to determine the natural frequencies of the plates the recorded time-domain responses were post-processed, i.e. converted to the frequency domain by fast Fourier transform (FFT). The first three natural modes were successfully experimentally established and compared to the corresponding numerical values. Since the differences between the two sets of results are less than 5%, the applied experimental technique can be considered valid and suitable for a wide range of engineering problems involving vibrations.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019",
title = "Comparative Numerical and Experimental Modal Analysis of Aluminum and Composite Plates",
pages = "75-61",
volume = "90",
doi = "10.1007/978-3-030-30853-7_4"
}

Baltić, M., Svorcan, J., Peković, O.,& Ivanov, T.. (2020). Comparative Numerical and Experimental Modal Analysis of Aluminum and Composite Plates. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
Springer International Publishing Ag, Cham., 90, 61-75.
https://doi.org/10.1007/978-3-030-30853-7_4

Baltić M, Svorcan J, Peković O, Ivanov T. Comparative Numerical and Experimental Modal Analysis of Aluminum and Composite Plates. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019. 2020;90:61-75.
doi:10.1007/978-3-030-30853-7_4 .

Baltić, Marija, Svorcan, Jelena, Peković, Ognjen, Ivanov, Toni, "Comparative Numerical and Experimental Modal Analysis of Aluminum and Composite Plates" in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 90 (2020):61-75,
https://doi.org/10.1007/978-3-030-30853-7_4 . .

TY  - CONF
AU  - Baltić, Marija
AU  - Hasan, Sakib Mohammad
AU  - Daou, David
AU  - Milovanović, Aleksa
AU  - Kovačević, Aleksandar
AU  - Milošević, Miloš
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7282
AB  - - Kompozitni materijali predstavljaju napredne materijale visokih mehaničkih i fizičkih karakteristika, pa je njihova primena uglavnom zastupljena u specifičnim oblastima industrije, kao što su vazduhoplovstvo i vetroenergetski sistemi. Lopatice vetroturbina kao najkompleksnije komponente, se uglavnom izradjuju od kompozitnih materijala, pa je i njihovom izučavanju i testiranju potrebno posvetiti posebnu pažnju.
U radu je prikazano mehaničko ponašanje kompozitnih ploča izloženih dejstvu na istezanje. Tri kompozitne ploče karbon epoksidnog sastava, istih dimenzija, ali sa različitom orijentacijom slojeva su u skladu sa procedurom propisanom standardom D3039, pripremljene i eksperimentalno testirane. Ponašanje uzoraka je najpre simulirano u odgovarajućem softveru, u cilju provere i verifikacije eksperimentalne postavke, a zatim su vršeni testovi pod dejstvom zateznog opterećenja na kidalici SHIMADZU AGS-X 100 kN.
Dobijene vrednosti su grafički ilustrovane na dijagramima napon-deformacija. Prikazani rezultati dobijeni ovom metodom ispitivanja su od značaja u cilju boljeg razumevanja ponašanja kompozitnih struktura pod dejstvom različitih vrsta opterećenja, kako statičkih, tako i dinamičkih, jer poznavanje datih vrednosti daje širok spektar mogućnosti u daljim ispitivanjima i uporednim analizama sa ostalim eksperimentalnim metodama.
C3  - ENERGY, ECONOMY, ECOLOGY Journal of Scientific and Research Publications
T1  - Investigation of mechanical characteristics of composite plates under tensile loading
VL  - Volume X, Issue X
DO  - ISSN 0354-8651
ER  - 

@conference{
author = "Baltić, Marija and Hasan, Sakib Mohammad and Daou, David and Milovanović, Aleksa and Kovačević, Aleksandar and Milošević, Miloš",
year = "2020",
abstract = "- Kompozitni materijali predstavljaju napredne materijale visokih mehaničkih i fizičkih karakteristika, pa je njihova primena uglavnom zastupljena u specifičnim oblastima industrije, kao što su vazduhoplovstvo i vetroenergetski sistemi. Lopatice vetroturbina kao najkompleksnije komponente, se uglavnom izradjuju od kompozitnih materijala, pa je i njihovom izučavanju i testiranju potrebno posvetiti posebnu pažnju.
U radu je prikazano mehaničko ponašanje kompozitnih ploča izloženih dejstvu na istezanje. Tri kompozitne ploče karbon epoksidnog sastava, istih dimenzija, ali sa različitom orijentacijom slojeva su u skladu sa procedurom propisanom standardom D3039, pripremljene i eksperimentalno testirane. Ponašanje uzoraka je najpre simulirano u odgovarajućem softveru, u cilju provere i verifikacije eksperimentalne postavke, a zatim su vršeni testovi pod dejstvom zateznog opterećenja na kidalici SHIMADZU AGS-X 100 kN.
Dobijene vrednosti su grafički ilustrovane na dijagramima napon-deformacija. Prikazani rezultati dobijeni ovom metodom ispitivanja su od značaja u cilju boljeg razumevanja ponašanja kompozitnih struktura pod dejstvom različitih vrsta opterećenja, kako statičkih, tako i dinamičkih, jer poznavanje datih vrednosti daje širok spektar mogućnosti u daljim ispitivanjima i uporednim analizama sa ostalim eksperimentalnim metodama.",
journal = "ENERGY, ECONOMY, ECOLOGY Journal of Scientific and Research Publications",
title = "Investigation of mechanical characteristics of composite plates under tensile loading",
volume = "Volume X, Issue X",
doi = "ISSN 0354-8651"
}

Baltić, M., Hasan, S. M., Daou, D., Milovanović, A., Kovačević, A.,& Milošević, M.. (2020). Investigation of mechanical characteristics of composite plates under tensile loading. in ENERGY, ECONOMY, ECOLOGY Journal of Scientific and Research Publications, Volume X, Issue X.
https://doi.org/ISSN 0354-8651

Baltić M, Hasan SM, Daou D, Milovanović A, Kovačević A, Milošević M. Investigation of mechanical characteristics of composite plates under tensile loading. in ENERGY, ECONOMY, ECOLOGY Journal of Scientific and Research Publications. 2020;Volume X, Issue X.
doi:ISSN 0354-8651 .

Baltić, Marija, Hasan, Sakib Mohammad, Daou, David, Milovanović, Aleksa, Kovačević, Aleksandar, Milošević, Miloš, "Investigation of mechanical characteristics of composite plates under tensile loading" in ENERGY, ECONOMY, ECOLOGY Journal of Scientific and Research Publications, Volume X, Issue X (2020),
https://doi.org/ISSN 0354-8651 . .

TY  - CONF
AU  - Simonović, Aleksandar
AU  - Kovačević, Aleksandar
AU  - Ivanov, Toni
AU  - Vorkapić, Miloš
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5432
AB  - The trend of wind turbine development has a special significance in the exploitation of renewable energy sources. At higher altitudes, we have better wind energy utilization higher speed and their conversion are achieved in the best possible use of wind turbines. The development of new technologies opens space for a new generation of wind turbines with a 20MW rated power. In recent years, various feasibility studies have shown that wind turbines with large rotor diameter and high towers give positive shifts in the analysis of structural and aerodynamic parameters, with a focus on reducing overall mass and damping vibrations due to the use of new materials. In this paper, the evolution of high power wind turbines and an overview of the technological development of the basic components of the turbine will be presented. Perspectives in the further development of wind turbines with rated power above 20MW will be also considered.
PB  - Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, Beograd
C3  - 8th International Conference on Renewable Electrical Power Sources (8. Međunarodna konferencija o obnovljivim izvorima električne energije), ICREPS 2020, October 16, Belgrade, Serbia
T1  - Wind turbine beyond 20 MW – Technology perspective
EP  - 134
SP  - 123
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5432
ER  - 

@conference{
author = "Simonović, Aleksandar and Kovačević, Aleksandar and Ivanov, Toni and Vorkapić, Miloš",
year = "2020",
abstract = "The trend of wind turbine development has a special significance in the exploitation of renewable energy sources. At higher altitudes, we have better wind energy utilization higher speed and their conversion are achieved in the best possible use of wind turbines. The development of new technologies opens space for a new generation of wind turbines with a 20MW rated power. In recent years, various feasibility studies have shown that wind turbines with large rotor diameter and high towers give positive shifts in the analysis of structural and aerodynamic parameters, with a focus on reducing overall mass and damping vibrations due to the use of new materials. In this paper, the evolution of high power wind turbines and an overview of the technological development of the basic components of the turbine will be presented. Perspectives in the further development of wind turbines with rated power above 20MW will be also considered.",
publisher = "Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, Beograd",
journal = "8th International Conference on Renewable Electrical Power Sources (8. Međunarodna konferencija o obnovljivim izvorima električne energije), ICREPS 2020, October 16, Belgrade, Serbia",
title = "Wind turbine beyond 20 MW – Technology perspective",
pages = "134-123",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5432"
}

Simonović, A., Kovačević, A., Ivanov, T.,& Vorkapić, M.. (2020). Wind turbine beyond 20 MW – Technology perspective. in 8th International Conference on Renewable Electrical Power Sources (8. Međunarodna konferencija o obnovljivim izvorima električne energije), ICREPS 2020, October 16, Belgrade, Serbia
Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, Beograd., 123-134.
https://hdl.handle.net/21.15107/rcub_machinery_5432

Simonović A, Kovačević A, Ivanov T, Vorkapić M. Wind turbine beyond 20 MW – Technology perspective. in 8th International Conference on Renewable Electrical Power Sources (8. Međunarodna konferencija o obnovljivim izvorima električne energije), ICREPS 2020, October 16, Belgrade, Serbia. 2020;:123-134.
https://hdl.handle.net/21.15107/rcub_machinery_5432 .

Simonović, Aleksandar, Kovačević, Aleksandar, Ivanov, Toni, Vorkapić, Miloš, "Wind turbine beyond 20 MW – Technology perspective" in 8th International Conference on Renewable Electrical Power Sources (8. Međunarodna konferencija o obnovljivim izvorima električne energije), ICREPS 2020, October 16, Belgrade, Serbia (2020):123-134,
https://hdl.handle.net/21.15107/rcub_machinery_5432 .

TY  - CONF
AU  - Tanović, Dragoljub Lj.
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
AU  - Hasan, Mohammad Sakib
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4284
AB  - Rastuća zabrinutost zbog globalnog zagrevanja, zagađenja životne sredine i poskupljenja fosilnih goriva doveli su do interesovanja za razvoj obnovljivih i ekološki prihvatljivih izvora energije. Stoga istraživanja u oblasti obnovljivih izvora, posebno energije vetra, postaju izuzetno aktuelna. U radu je izvršena aerodinamička analiza vetroturbina sa vertikalnom osom obrtanja - VAWT, koje imaju različite aeroprofile. Korišćene su dve metode BEM - Blade Element Momentum i DMS - Double Multiple Streamtube, obično usvojene za rani dizajn i ocenu turbina. U radu je korišćen program Qblade, a dobijeni rezultati snage u zavisnosti od brzine vetra omogućuvaju upoređivanje performansi vetroturbine.
PB  - Univerzitet u Beogradu - Mašinski fakultet
C3  - Zbornik radova sa 42. JUPITER konferencije, 29. CAD/CAM simpozijum
T1  - Analiza performansi vetroturbina različitih aeroprofila
EP  - 2.40
SP  - 2.33
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4284
ER  - 

@conference{
author = "Tanović, Dragoljub Lj. and Svorcan, Jelena and Peković, Ognjen and Hasan, Mohammad Sakib",
year = "2020",
abstract = "Rastuća zabrinutost zbog globalnog zagrevanja, zagađenja životne sredine i poskupljenja fosilnih goriva doveli su do interesovanja za razvoj obnovljivih i ekološki prihvatljivih izvora energije. Stoga istraživanja u oblasti obnovljivih izvora, posebno energije vetra, postaju izuzetno aktuelna. U radu je izvršena aerodinamička analiza vetroturbina sa vertikalnom osom obrtanja - VAWT, koje imaju različite aeroprofile. Korišćene su dve metode BEM - Blade Element Momentum i DMS - Double Multiple Streamtube, obično usvojene za rani dizajn i ocenu turbina. U radu je korišćen program Qblade, a dobijeni rezultati snage u zavisnosti od brzine vetra omogućuvaju upoređivanje performansi vetroturbine.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet",
journal = "Zbornik radova sa 42. JUPITER konferencije, 29. CAD/CAM simpozijum",
title = "Analiza performansi vetroturbina različitih aeroprofila",
pages = "2.40-2.33",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4284"
}

Tanović, D. Lj., Svorcan, J., Peković, O.,& Hasan, M. S.. (2020). Analiza performansi vetroturbina različitih aeroprofila. in Zbornik radova sa 42. JUPITER konferencije, 29. CAD/CAM simpozijum
Univerzitet u Beogradu - Mašinski fakultet., 2.33-2.40.
https://hdl.handle.net/21.15107/rcub_machinery_4284

Tanović DL, Svorcan J, Peković O, Hasan MS. Analiza performansi vetroturbina različitih aeroprofila. in Zbornik radova sa 42. JUPITER konferencije, 29. CAD/CAM simpozijum. 2020;:2.33-2.40.
https://hdl.handle.net/21.15107/rcub_machinery_4284 .

Tanović, Dragoljub Lj., Svorcan, Jelena, Peković, Ognjen, Hasan, Mohammad Sakib, "Analiza performansi vetroturbina različitih aeroprofila" in Zbornik radova sa 42. JUPITER konferencije, 29. CAD/CAM simpozijum (2020):2.33-2.40,
https://hdl.handle.net/21.15107/rcub_machinery_4284 .

TY  - CONF
AU  - Peković, Ognjen
AU  - Svorcan, Jelena
AU  - Simonović, Aleksandar
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4252
AB  - Isogeometric analysis (IGA) is an extension to conventional Finite Element Method (FEM) developed with the idea of unifying Computer Aided Design (CAD) and Computer Aided Analysis (CAE) into an efficient methodology for structural design and optimization. The isogeometric formulation of finite elements is based on NURBS (non-uniform rational B-splines) basis functions of varying degree, the same functions that are used in CAD for geometry definition. In this way, operation of mesh generation in IGA is unnecessary since the geometry that is defined as parametric representation of NURBS is used for representation of field variables. Behavior of laminated plate elements based on isogeometric formulation and different kinematic models is
presented and different aspects of implementation are discussed. Chosen numerical examples highlight the advantages of the isogeometric laminated plate elements over the conventional finite element formulation of laminated plates.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH
T1  - Static isogeometric analysis of laminated composite plates based on different equivalent layer theories
SP  - 63
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4252
ER  - 

@conference{
author = "Peković, Ognjen and Svorcan, Jelena and Simonović, Aleksandar",
year = "2020",
abstract = "Isogeometric analysis (IGA) is an extension to conventional Finite Element Method (FEM) developed with the idea of unifying Computer Aided Design (CAD) and Computer Aided Analysis (CAE) into an efficient methodology for structural design and optimization. The isogeometric formulation of finite elements is based on NURBS (non-uniform rational B-splines) basis functions of varying degree, the same functions that are used in CAD for geometry definition. In this way, operation of mesh generation in IGA is unnecessary since the geometry that is defined as parametric representation of NURBS is used for representation of field variables. Behavior of laminated plate elements based on isogeometric formulation and different kinematic models is
presented and different aspects of implementation are discussed. Chosen numerical examples highlight the advantages of the isogeometric laminated plate elements over the conventional finite element formulation of laminated plates.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH",
title = "Static isogeometric analysis of laminated composite plates based on different equivalent layer theories",
pages = "63",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4252"
}

Peković, O., Svorcan, J.,& Simonović, A.. (2020). Static isogeometric analysis of laminated composite plates based on different equivalent layer theories. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 63.
https://hdl.handle.net/21.15107/rcub_machinery_4252

Peković O, Svorcan J, Simonović A. Static isogeometric analysis of laminated composite plates based on different equivalent layer theories. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH. 2020;:63.
https://hdl.handle.net/21.15107/rcub_machinery_4252 .

Peković, Ognjen, Svorcan, Jelena, Simonović, Aleksandar, "Static isogeometric analysis of laminated composite plates based on different equivalent layer theories" in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH (2020):63,
https://hdl.handle.net/21.15107/rcub_machinery_4252 .

TY  - CONF
AU  - Tanović, Dragoljub Lj.
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4253
AB  - Growing concerns about global warming, environmental pollution and the rise in the price of fossil fuels have led to an interest in developing renewable and environmentally friendly energy sources, such as wind, solar, geothermal, hydrogen and biomass as a replacement for fossil fuels. Therefore, the research of renewable energy, and wind energy in particular, is in constant expansion. Wind energy can provide appropriate solutions to the global climate and energy crisis. The use of wind energy basically eliminates the emission of harmful gases such as CO2, SO2 as in traditional coal-fired power stations or radioactive material waste in nuclear power plants.
There has been a tremendous increase in wind energy worldwide over the last three decades. In 2009, the global yearly installed wind power reached 37 GW, bringing the total wind capacity to 158 GW. As the most promising renewable, clean and most reliable source of clean energy, it is expected to occupy a much larger part in electricity distribution all over the world. Wind turbines are types of power plants that use renewable energy, wind, to generate electricity.
The purpose of this paper is to analyze wind turbine with vertical axis - VAWT, that have two or three blades. Two methods were used for preliminary aerodynamic studies and they are BEM - Blade Element Momentum and DMS - Double Multiple Streamtube, usually adopted for early turbine design and rating. The program used in this work is QBlade. Obtained results enable the comparison of computed power curves of different geometries.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH
T1  - Performance analysis of wind turbines with different characteristics
SP  - 60
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4253
ER  - 

@conference{
author = "Tanović, Dragoljub Lj. and Svorcan, Jelena and Peković, Ognjen",
year = "2020",
abstract = "Growing concerns about global warming, environmental pollution and the rise in the price of fossil fuels have led to an interest in developing renewable and environmentally friendly energy sources, such as wind, solar, geothermal, hydrogen and biomass as a replacement for fossil fuels. Therefore, the research of renewable energy, and wind energy in particular, is in constant expansion. Wind energy can provide appropriate solutions to the global climate and energy crisis. The use of wind energy basically eliminates the emission of harmful gases such as CO2, SO2 as in traditional coal-fired power stations or radioactive material waste in nuclear power plants.
There has been a tremendous increase in wind energy worldwide over the last three decades. In 2009, the global yearly installed wind power reached 37 GW, bringing the total wind capacity to 158 GW. As the most promising renewable, clean and most reliable source of clean energy, it is expected to occupy a much larger part in electricity distribution all over the world. Wind turbines are types of power plants that use renewable energy, wind, to generate electricity.
The purpose of this paper is to analyze wind turbine with vertical axis - VAWT, that have two or three blades. Two methods were used for preliminary aerodynamic studies and they are BEM - Blade Element Momentum and DMS - Double Multiple Streamtube, usually adopted for early turbine design and rating. The program used in this work is QBlade. Obtained results enable the comparison of computed power curves of different geometries.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH",
title = "Performance analysis of wind turbines with different characteristics",
pages = "60",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4253"
}

Tanović, D. Lj., Svorcan, J.,& Peković, O.. (2020). Performance analysis of wind turbines with different characteristics. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 60.
https://hdl.handle.net/21.15107/rcub_machinery_4253

Tanović DL, Svorcan J, Peković O. Performance analysis of wind turbines with different characteristics. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH. 2020;:60.
https://hdl.handle.net/21.15107/rcub_machinery_4253 .

Tanović, Dragoljub Lj., Svorcan, Jelena, Peković, Ognjen, "Performance analysis of wind turbines with different characteristics" in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH (2020):60,
https://hdl.handle.net/21.15107/rcub_machinery_4253 .

TY  - JOUR
AU  - Vorkapić, Miloš
AU  - Ivanov, Toni
AU  - Baltić, Marija
AU  - Kreculj, Dragan D.
AU  - Tanović, Dragoljub Lj.
AU  - Kovačević, Aleksandar M.
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3321
AB  - Aditivna proizvodnja uključuje izradu proizvoda složene geometrije u relativno malim količinama, kao i izradu alata i kalupa za masovnu proizvodnju. Aditivnom proizvodnjom realizuju se modeli prema digitalnom prikazu, a primena je ogromna u različitim industrijskim sektorima. U poređenju sa tradicionalnom proizvodnjom, glavni parametri u odabiru aditivne tehnologije su: ušteda energije, smanjenje otpada, smanjenje upotrebe većeg broja alata, kao i optimizacija dizajna. Aditivna proizvodnja ili tehnologija 3D štampe rade na principu dodavanja materijala u slojevima, tj. model se formira od slojeva rastopljenog materijala koji se odmah hladi i očvršćava. 3D štampa omogućava čestu i jednostavnu modifikaciju modela na zahtev kupca, a pre ulaska modela u samu proizvodnju. Ovo čini komunikaciju na relaciji proizvođač-kupac dosta jednostavnom. Polazni materijal za izradu modela je polilaktična kiselina (PLA). To je ekološki termoplastični poliester koji se prirodno razgrađuje u prirodi. Na mehaničke karakteristike realizovanog modela od PLA značajno utiču različite tehnološke promenljive kao što su: prečnik brizgaljke, debljina definisanog sloja, procentualna vrednost ispune, veličina uzorka koji se puni, brzina punjenja i temperatura proizvodnje. Cilj ovog rada je da se prikaže postupak realizacije kutije elektronike za malogabaritni transmiter pritiska na 3D štampaču. Time se projektantu daje mogućnost da ispravi postojeće greške, modifikuje proizvod prema zahtevima krajnjih korisnika i na kraju daje polazna osnova za realizaciju prototipa novog proizvoda.
AB  - Additive manufacturing involves manufacturing of products with complex geometry in relatively small quantities, as well as the tools and molds manufacturing for mass production. With additive manufacturing, digital models are being realized and implementation is huge in various industrial sectors. Compared to traditional manufacturing, the main parameters in the choice of additive technology are: energy savings, waste reduction, reduced use of more tools and optimization of design. Additive manufacturing or 3D printing technology works on the principle of adding material in layers, i.e. the model is formed from layers of molten material that is immediately cooled and solidified. 3D printing allows to work with customers to solve design problems before embarking on a launch production. The starting material for the model is polyactic acid (PLA). It is an eco-friendly thermoplastic polyester, that breaks down naturally. The mechanical characteristics of the realized PLA model are significantly influenced by various technological variables, such as following: nozzle diameter, thickness of defined layer, percentage of fill, sample size to be filled, filling rate and production temperature. The aim of this paper is to present the process of realization of an electronics enclosure for a compact pressure transmitter on a 3D printer. This gives the designer the possibility to correct existing errors, modify the product according to the wishes of the end users and finally provides a starting point for the prototype of new product.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Upotreba 3D štampe u analizi dizajna realizovanog proizvoda - slučaj - kutija malogabaritnog transmitera pritiska
T1  - The usage of 3D printing in the analysis of the product design: Case: Electronic enclosure of compact pressure transmitter
EP  - 186
IS  - 2
SP  - 179
VL  - 75
DO  - 10.5937/tehnika2002179V
ER  - 

@article{
author = "Vorkapić, Miloš and Ivanov, Toni and Baltić, Marija and Kreculj, Dragan D. and Tanović, Dragoljub Lj. and Kovačević, Aleksandar M.",
year = "2020",
abstract = "Aditivna proizvodnja uključuje izradu proizvoda složene geometrije u relativno malim količinama, kao i izradu alata i kalupa za masovnu proizvodnju. Aditivnom proizvodnjom realizuju se modeli prema digitalnom prikazu, a primena je ogromna u različitim industrijskim sektorima. U poređenju sa tradicionalnom proizvodnjom, glavni parametri u odabiru aditivne tehnologije su: ušteda energije, smanjenje otpada, smanjenje upotrebe većeg broja alata, kao i optimizacija dizajna. Aditivna proizvodnja ili tehnologija 3D štampe rade na principu dodavanja materijala u slojevima, tj. model se formira od slojeva rastopljenog materijala koji se odmah hladi i očvršćava. 3D štampa omogućava čestu i jednostavnu modifikaciju modela na zahtev kupca, a pre ulaska modela u samu proizvodnju. Ovo čini komunikaciju na relaciji proizvođač-kupac dosta jednostavnom. Polazni materijal za izradu modela je polilaktična kiselina (PLA). To je ekološki termoplastični poliester koji se prirodno razgrađuje u prirodi. Na mehaničke karakteristike realizovanog modela od PLA značajno utiču različite tehnološke promenljive kao što su: prečnik brizgaljke, debljina definisanog sloja, procentualna vrednost ispune, veličina uzorka koji se puni, brzina punjenja i temperatura proizvodnje. Cilj ovog rada je da se prikaže postupak realizacije kutije elektronike za malogabaritni transmiter pritiska na 3D štampaču. Time se projektantu daje mogućnost da ispravi postojeće greške, modifikuje proizvod prema zahtevima krajnjih korisnika i na kraju daje polazna osnova za realizaciju prototipa novog proizvoda., Additive manufacturing involves manufacturing of products with complex geometry in relatively small quantities, as well as the tools and molds manufacturing for mass production. With additive manufacturing, digital models are being realized and implementation is huge in various industrial sectors. Compared to traditional manufacturing, the main parameters in the choice of additive technology are: energy savings, waste reduction, reduced use of more tools and optimization of design. Additive manufacturing or 3D printing technology works on the principle of adding material in layers, i.e. the model is formed from layers of molten material that is immediately cooled and solidified. 3D printing allows to work with customers to solve design problems before embarking on a launch production. The starting material for the model is polyactic acid (PLA). It is an eco-friendly thermoplastic polyester, that breaks down naturally. The mechanical characteristics of the realized PLA model are significantly influenced by various technological variables, such as following: nozzle diameter, thickness of defined layer, percentage of fill, sample size to be filled, filling rate and production temperature. The aim of this paper is to present the process of realization of an electronics enclosure for a compact pressure transmitter on a 3D printer. This gives the designer the possibility to correct existing errors, modify the product according to the wishes of the end users and finally provides a starting point for the prototype of new product.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Upotreba 3D štampe u analizi dizajna realizovanog proizvoda - slučaj - kutija malogabaritnog transmitera pritiska, The usage of 3D printing in the analysis of the product design: Case: Electronic enclosure of compact pressure transmitter",
pages = "186-179",
number = "2",
volume = "75",
doi = "10.5937/tehnika2002179V"
}

Vorkapić, M., Ivanov, T., Baltić, M., Kreculj, D. D., Tanović, D. Lj.,& Kovačević, A. M.. (2020). Upotreba 3D štampe u analizi dizajna realizovanog proizvoda - slučaj - kutija malogabaritnog transmitera pritiska. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 75(2), 179-186.
https://doi.org/10.5937/tehnika2002179V

Vorkapić M, Ivanov T, Baltić M, Kreculj DD, Tanović DL, Kovačević AM. Upotreba 3D štampe u analizi dizajna realizovanog proizvoda - slučaj - kutija malogabaritnog transmitera pritiska. in Tehnika. 2020;75(2):179-186.
doi:10.5937/tehnika2002179V .

Vorkapić, Miloš, Ivanov, Toni, Baltić, Marija, Kreculj, Dragan D., Tanović, Dragoljub Lj., Kovačević, Aleksandar M., "Upotreba 3D štampe u analizi dizajna realizovanog proizvoda - slučaj - kutija malogabaritnog transmitera pritiska" in Tehnika, 75, no. 2 (2020):179-186,
https://doi.org/10.5937/tehnika2002179V . .

TY  - CONF
AU  - Svorcan, Jelena
AU  - Baltić, Marija
AU  - Ivanov, Toni
AU  - Peković, Ognjen
AU  - Milić, Milica
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4298
AB  - Three-dimensional, unsteady, turbulent, incompressible flow simulations of isolated vertical-axis
wind turbine (VAWT) high-solidity rotor consisting of three straight blades at seven different
operational regimes have been performed in ANSYS FLUENT by finite volume method. Aerodynamic analysis of this type of wind turbine rotors is interesting and extremely complex because the blades pass through a wide range of angles-of-attack during one revolution, and many flow instabilities as well as flow separation occur. Furthermore, the simulation of high-solidity rotors is even more difficult, due to the significant interference between the blades, or more precisely, between the wake of the advancing blade and the retracting blade. The rotational motion of the blades is solved by the unsteady Sliding Mesh (SM) approach. Flow field is modeled by Unsteady Reynolds Averaged Navier-Stokes (URANS) equations with k-ω SST turbulence model and hybrid Scale-Adaptive Simulation (SAS) used for closure. Quantitative and qualitative examinations of the obtained numerical results are done by comparison to the available wind tunnel data. In particular, aerodynamic loads acting on a blade per revolution as well as power coefficient curves are investigated in detail and comparisons between the two turbulence models are made. Final distinguishing between the simpler and more complex approach to turbulence modeling is made by visualizations of turbulent flow structures separating from the blades throughout a cycle at both non-optimal (starting) and optimal working regimes.
PB  - Belgrade : Serbian Society of Mechanics
C3  - Proceedings / The 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019
T1  - Numerical evaluation of aerodynamic loads and performances of vertical-axis wind turbine rotor
SP  - M3d
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4298
ER  - 

@conference{
author = "Svorcan, Jelena and Baltić, Marija and Ivanov, Toni and Peković, Ognjen and Milić, Milica",
year = "2019",
abstract = "Three-dimensional, unsteady, turbulent, incompressible flow simulations of isolated vertical-axis
wind turbine (VAWT) high-solidity rotor consisting of three straight blades at seven different
operational regimes have been performed in ANSYS FLUENT by finite volume method. Aerodynamic analysis of this type of wind turbine rotors is interesting and extremely complex because the blades pass through a wide range of angles-of-attack during one revolution, and many flow instabilities as well as flow separation occur. Furthermore, the simulation of high-solidity rotors is even more difficult, due to the significant interference between the blades, or more precisely, between the wake of the advancing blade and the retracting blade. The rotational motion of the blades is solved by the unsteady Sliding Mesh (SM) approach. Flow field is modeled by Unsteady Reynolds Averaged Navier-Stokes (URANS) equations with k-ω SST turbulence model and hybrid Scale-Adaptive Simulation (SAS) used for closure. Quantitative and qualitative examinations of the obtained numerical results are done by comparison to the available wind tunnel data. In particular, aerodynamic loads acting on a blade per revolution as well as power coefficient curves are investigated in detail and comparisons between the two turbulence models are made. Final distinguishing between the simpler and more complex approach to turbulence modeling is made by visualizations of turbulent flow structures separating from the blades throughout a cycle at both non-optimal (starting) and optimal working regimes.",
publisher = "Belgrade : Serbian Society of Mechanics",
journal = "Proceedings / The 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019",
title = "Numerical evaluation of aerodynamic loads and performances of vertical-axis wind turbine rotor",
pages = "M3d",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4298"
}

Svorcan, J., Baltić, M., Ivanov, T., Peković, O.,& Milić, M.. (2019). Numerical evaluation of aerodynamic loads and performances of vertical-axis wind turbine rotor. in Proceedings / The 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019
Belgrade : Serbian Society of Mechanics., M3d.
https://hdl.handle.net/21.15107/rcub_machinery_4298

Svorcan J, Baltić M, Ivanov T, Peković O, Milić M. Numerical evaluation of aerodynamic loads and performances of vertical-axis wind turbine rotor. in Proceedings / The 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019. 2019;:M3d.
https://hdl.handle.net/21.15107/rcub_machinery_4298 .

Svorcan, Jelena, Baltić, Marija, Ivanov, Toni, Peković, Ognjen, Milić, Milica, "Numerical evaluation of aerodynamic loads and performances of vertical-axis wind turbine rotor" in Proceedings / The 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019 (2019):M3d,
https://hdl.handle.net/21.15107/rcub_machinery_4298 .

TY  - CONF
AU  - Svorcan, Jelena
AU  - Trivković, Zorana
AU  - Baltić, Marija
AU  - Peković, Ognjen
AU  - Ivanov, Toni
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4300
AB  - The paper presents a possible approach to a multi-objective optimization of a small-scale vertical-axis wind turbine (VAWT) blade. The starting geometry is simple − the blade is rectangular with a symmetric airfoil NACA 0018. According to its dimensions, the blade corresponds to a VAWT of approximate power of 600 W (applicable to small consumers). Blade structure is a laminate determined by 4 parameters: 2 ply numbers and their orientations. Two-criterion constrained optimizations are performed with respect to blade mass, maximum blade tip deflection, natural frequencies and failure index. Optimization is performed by one of the heuristic, evolutionary algorithms − particle swarm optimization (PSO). Some comments, gained experiences while dealing with a real engineering problem and results concerning possible wind turbine blade structural designs are presented and discussed.
PB  - GLOBAL Society for Research and Development
C3  - Proceedings of GSRD International Conference
T1  - Multi-objective structural optimization of laminate vertical-axis wind turbine blades
EP  - 45
SP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4300
ER  - 

@conference{
author = "Svorcan, Jelena and Trivković, Zorana and Baltić, Marija and Peković, Ognjen and Ivanov, Toni",
year = "2019",
abstract = "The paper presents a possible approach to a multi-objective optimization of a small-scale vertical-axis wind turbine (VAWT) blade. The starting geometry is simple − the blade is rectangular with a symmetric airfoil NACA 0018. According to its dimensions, the blade corresponds to a VAWT of approximate power of 600 W (applicable to small consumers). Blade structure is a laminate determined by 4 parameters: 2 ply numbers and their orientations. Two-criterion constrained optimizations are performed with respect to blade mass, maximum blade tip deflection, natural frequencies and failure index. Optimization is performed by one of the heuristic, evolutionary algorithms − particle swarm optimization (PSO). Some comments, gained experiences while dealing with a real engineering problem and results concerning possible wind turbine blade structural designs are presented and discussed.",
publisher = "GLOBAL Society for Research and Development",
journal = "Proceedings of GSRD International Conference",
title = "Multi-objective structural optimization of laminate vertical-axis wind turbine blades",
pages = "45-42",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4300"
}

Svorcan, J., Trivković, Z., Baltić, M., Peković, O.,& Ivanov, T.. (2019). Multi-objective structural optimization of laminate vertical-axis wind turbine blades. in Proceedings of GSRD International Conference
GLOBAL Society for Research and Development., 42-45.
https://hdl.handle.net/21.15107/rcub_machinery_4300

Svorcan J, Trivković Z, Baltić M, Peković O, Ivanov T. Multi-objective structural optimization of laminate vertical-axis wind turbine blades. in Proceedings of GSRD International Conference. 2019;:42-45.
https://hdl.handle.net/21.15107/rcub_machinery_4300 .

Svorcan, Jelena, Trivković, Zorana, Baltić, Marija, Peković, Ognjen, Ivanov, Toni, "Multi-objective structural optimization of laminate vertical-axis wind turbine blades" in Proceedings of GSRD International Conference (2019):42-45,
https://hdl.handle.net/21.15107/rcub_machinery_4300 .

TY  - CONF
AU  - Baltić, Marija
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
AU  - Ivanov, Toni
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4307
AB  - The paper presents the comparative analysis of the dynamic behaviour of two rectangular plates of different material, aluminium and composite. While their global geometric dimensions (length, width and thickness) are identical, their inner structures are quite different. Whereas aluminium plate can be considered isotropic, composite plate is a unidirectional carbon-epoxy laminate. Modal characteristics of the two plates were determined both numerically and experimentally and a
comparative analysis of the obtained results was performed. Responses of the plates were documented by an optical, contactless 3D digital image correlation (DIC) system that contains a set of high-speed cameras capable of recording the movement of the white-and-black stochastic pattern applied to the upper surfaces of the plates. Numerical simulations were performed by the finite element method (FEM) in the commercial software package ANSYS. The plates were excited by a modal hammer and allowed to freely oscillate. In order to determine the natural frequencies of the plates the recorded time-domain responses were post-processed, i.e. converted to frequency domain by fast Fourier transform (FFT). The first three natural modes were successfully experimentally established and compared to the corresponding numerical values. Since the
differences between the two sets of results are less than 5%, the applied experimental technique can be considered valid and suitable to a wide range of engineering problems involving vibrations.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH
T1  - Numerical and experimental modal analysis of aluminium and composite plates
SP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4307
ER  - 

@conference{
author = "Baltić, Marija and Svorcan, Jelena and Peković, Ognjen and Ivanov, Toni",
year = "2019",
abstract = "The paper presents the comparative analysis of the dynamic behaviour of two rectangular plates of different material, aluminium and composite. While their global geometric dimensions (length, width and thickness) are identical, their inner structures are quite different. Whereas aluminium plate can be considered isotropic, composite plate is a unidirectional carbon-epoxy laminate. Modal characteristics of the two plates were determined both numerically and experimentally and a
comparative analysis of the obtained results was performed. Responses of the plates were documented by an optical, contactless 3D digital image correlation (DIC) system that contains a set of high-speed cameras capable of recording the movement of the white-and-black stochastic pattern applied to the upper surfaces of the plates. Numerical simulations were performed by the finite element method (FEM) in the commercial software package ANSYS. The plates were excited by a modal hammer and allowed to freely oscillate. In order to determine the natural frequencies of the plates the recorded time-domain responses were post-processed, i.e. converted to frequency domain by fast Fourier transform (FFT). The first three natural modes were successfully experimentally established and compared to the corresponding numerical values. Since the
differences between the two sets of results are less than 5%, the applied experimental technique can be considered valid and suitable to a wide range of engineering problems involving vibrations.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH",
title = "Numerical and experimental modal analysis of aluminium and composite plates",
pages = "45",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4307"
}

Baltić, M., Svorcan, J., Peković, O.,& Ivanov, T.. (2019). Numerical and experimental modal analysis of aluminium and composite plates. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 45.
https://hdl.handle.net/21.15107/rcub_machinery_4307

Baltić M, Svorcan J, Peković O, Ivanov T. Numerical and experimental modal analysis of aluminium and composite plates. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH. 2019;:45.
https://hdl.handle.net/21.15107/rcub_machinery_4307 .

Baltić, Marija, Svorcan, Jelena, Peković, Ognjen, Ivanov, Toni, "Numerical and experimental modal analysis of aluminium and composite plates" in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH (2019):45,
https://hdl.handle.net/21.15107/rcub_machinery_4307 .

TY  - JOUR
AU  - Zorić, Nemanja
AU  - Tomović, Aleksandar
AU  - Obradović, Aleksandar
AU  - Radulović, Radoslav
AU  - Petrović, Goran R.
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4325
AB  - This paper deals with optimization of the sizing, location and orientation of the piezo-fiber reinforced composite (PFRC) actuators and active vibration control of the smart composite plates using particle-swarm optimized self-tuning fuzzy logic controller. The optimization criteria for optimal sizing, location and orientation of the PFRC actuators is based on the Gramian controllability matrix and the optimization process is performed by involving the limitation of the plates masses increase. Optimal configurations of five PFRC actuators for active vibration control of the first six modes of cantilever symmetric ((90 degrees/0 degrees/90 degrees/0 degrees)s), antisymmetric cross-ply ((90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees)) and antisymmetric angle-ply ((45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees)) composite plates are found using the particle swarm optimization. The detailed analysis of influences of the PFRC layer orientation and position (top or bottom side of composite plates), as well as bending-extension coupling of antisymmetric laminates on controllabilities is also performed. The experimental study is performed in order to validate this behavior on controllabilities of antisymmetric laminates. The particle swarm-optimized self-tuning fuzzy logic controller (FLC) adapted for the multiple-input multiple-output (MIMO) control is implemented for active vibration suppression of the plates. The membership functions as well as output matrices are optimized using the particle swarm optimization. The Mamdani and the zero-order Takagi-Sugeno-Kang fuzzy inference methods are employed and their performances are examined and compared. In order to represent the efficiency of the proposed controller, results obtained using the proposed particle swarm optimized self-tuning FLC are compared with the corresponding results in the case of the linear quadratic regulator (LQR) optimal control strategy.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Sound and Vibration
T1  - Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators
EP  - 198
SP  - 173
VL  - 456
DO  - 10.1016/j.jsv.2019.05.035
ER  - 

@article{
author = "Zorić, Nemanja and Tomović, Aleksandar and Obradović, Aleksandar and Radulović, Radoslav and Petrović, Goran R.",
year = "2019",
abstract = "This paper deals with optimization of the sizing, location and orientation of the piezo-fiber reinforced composite (PFRC) actuators and active vibration control of the smart composite plates using particle-swarm optimized self-tuning fuzzy logic controller. The optimization criteria for optimal sizing, location and orientation of the PFRC actuators is based on the Gramian controllability matrix and the optimization process is performed by involving the limitation of the plates masses increase. Optimal configurations of five PFRC actuators for active vibration control of the first six modes of cantilever symmetric ((90 degrees/0 degrees/90 degrees/0 degrees)s), antisymmetric cross-ply ((90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees)) and antisymmetric angle-ply ((45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees)) composite plates are found using the particle swarm optimization. The detailed analysis of influences of the PFRC layer orientation and position (top or bottom side of composite plates), as well as bending-extension coupling of antisymmetric laminates on controllabilities is also performed. The experimental study is performed in order to validate this behavior on controllabilities of antisymmetric laminates. The particle swarm-optimized self-tuning fuzzy logic controller (FLC) adapted for the multiple-input multiple-output (MIMO) control is implemented for active vibration suppression of the plates. The membership functions as well as output matrices are optimized using the particle swarm optimization. The Mamdani and the zero-order Takagi-Sugeno-Kang fuzzy inference methods are employed and their performances are examined and compared. In order to represent the efficiency of the proposed controller, results obtained using the proposed particle swarm optimized self-tuning FLC are compared with the corresponding results in the case of the linear quadratic regulator (LQR) optimal control strategy.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Sound and Vibration",
title = "Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators",
pages = "198-173",
volume = "456",
doi = "10.1016/j.jsv.2019.05.035"
}

Zorić, N., Tomović, A., Obradović, A., Radulović, R.,& Petrović, G. R.. (2019). Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators. in Journal of Sound and Vibration
Academic Press Ltd- Elsevier Science Ltd, London., 456, 173-198.
https://doi.org/10.1016/j.jsv.2019.05.035

Zorić N, Tomović A, Obradović A, Radulović R, Petrović GR. Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators. in Journal of Sound and Vibration. 2019;456:173-198.
doi:10.1016/j.jsv.2019.05.035 .

Zorić, Nemanja, Tomović, Aleksandar, Obradović, Aleksandar, Radulović, Radoslav, Petrović, Goran R., "Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators" in Journal of Sound and Vibration, 456 (2019):173-198,
https://doi.org/10.1016/j.jsv.2019.05.035 . .

TY  - JOUR
AU  - Zorić, Nemanja
AU  - Tomović, Aleksandar
AU  - Obradović, Aleksandar
AU  - Radulović, Radoslav
AU  - Petrović, Goran R.
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3026
AB  - This paper deals with optimization of the sizing, location and orientation of the piezo-fiber reinforced composite (PFRC) actuators and active vibration control of the smart composite plates using particle-swarm optimized self-tuning fuzzy logic controller. The optimization criteria for optimal sizing, location and orientation of the PFRC actuators is based on the Gramian controllability matrix and the optimization process is performed by involving the limitation of the plates masses increase. Optimal configurations of five PFRC actuators for active vibration control of the first six modes of cantilever symmetric ((90 degrees/0 degrees/90 degrees/0 degrees)s), antisymmetric cross-ply ((90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees)) and antisymmetric angle-ply ((45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees)) composite plates are found using the particle swarm optimization. The detailed analysis of influences of the PFRC layer orientation and position (top or bottom side of composite plates), as well as bending-extension coupling of antisymmetric laminates on controllabilities is also performed. The experimental study is performed in order to validate this behavior on controllabilities of antisymmetric laminates. The particle swarm-optimized self-tuning fuzzy logic controller (FLC) adapted for the multiple-input multiple-output (MIMO) control is implemented for active vibration suppression of the plates. The membership functions as well as output matrices are optimized using the particle swarm optimization. The Mamdani and the zero-order Takagi-Sugeno-Kang fuzzy inference methods are employed and their performances are examined and compared. In order to represent the efficiency of the proposed controller, results obtained using the proposed particle swarm optimized self-tuning FLC are compared with the corresponding results in the case of the linear quadratic regulator (LQR) optimal control strategy.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Sound and Vibration
T1  - Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators
EP  - 198
SP  - 173
VL  - 456
DO  - 10.1016/j.jsv.2019.05.035
ER  - 

@article{
author = "Zorić, Nemanja and Tomović, Aleksandar and Obradović, Aleksandar and Radulović, Radoslav and Petrović, Goran R.",
year = "2019",
abstract = "This paper deals with optimization of the sizing, location and orientation of the piezo-fiber reinforced composite (PFRC) actuators and active vibration control of the smart composite plates using particle-swarm optimized self-tuning fuzzy logic controller. The optimization criteria for optimal sizing, location and orientation of the PFRC actuators is based on the Gramian controllability matrix and the optimization process is performed by involving the limitation of the plates masses increase. Optimal configurations of five PFRC actuators for active vibration control of the first six modes of cantilever symmetric ((90 degrees/0 degrees/90 degrees/0 degrees)s), antisymmetric cross-ply ((90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees/90 degrees/0 degrees)) and antisymmetric angle-ply ((45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees/45 degrees/-45 degrees)) composite plates are found using the particle swarm optimization. The detailed analysis of influences of the PFRC layer orientation and position (top or bottom side of composite plates), as well as bending-extension coupling of antisymmetric laminates on controllabilities is also performed. The experimental study is performed in order to validate this behavior on controllabilities of antisymmetric laminates. The particle swarm-optimized self-tuning fuzzy logic controller (FLC) adapted for the multiple-input multiple-output (MIMO) control is implemented for active vibration suppression of the plates. The membership functions as well as output matrices are optimized using the particle swarm optimization. The Mamdani and the zero-order Takagi-Sugeno-Kang fuzzy inference methods are employed and their performances are examined and compared. In order to represent the efficiency of the proposed controller, results obtained using the proposed particle swarm optimized self-tuning FLC are compared with the corresponding results in the case of the linear quadratic regulator (LQR) optimal control strategy.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Sound and Vibration",
title = "Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators",
pages = "198-173",
volume = "456",
doi = "10.1016/j.jsv.2019.05.035"
}

Zorić, N., Tomović, A., Obradović, A., Radulović, R.,& Petrović, G. R.. (2019). Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators. in Journal of Sound and Vibration
Academic Press Ltd- Elsevier Science Ltd, London., 456, 173-198.
https://doi.org/10.1016/j.jsv.2019.05.035

Zorić N, Tomović A, Obradović A, Radulović R, Petrović GR. Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators. in Journal of Sound and Vibration. 2019;456:173-198.
doi:10.1016/j.jsv.2019.05.035 .

Zorić, Nemanja, Tomović, Aleksandar, Obradović, Aleksandar, Radulović, Radoslav, Petrović, Goran R., "Active vibration control of smart composite plates using optimized self-tuning fuzzy logic controller with optimization of placement, sizing and orientation of PFRC actuators" in Journal of Sound and Vibration, 456 (2019):173-198,
https://doi.org/10.1016/j.jsv.2019.05.035 . .

TY  - BOOK
AU  - Svorcan, Jelena
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4376
AB  - Предмет научнотехничке информације су: најчешће примењивани
различити приступи моделовању опструјавања обртних узгонских површина
(ротора), реализација прорачунских модела различите тачности и сложености, а
коначно и могуће оптимизације релевантних геометријских и структуралних
параметара разматраних површина. При томе су прорачунски приступи
подељени у три категорије: i) 1Д моделе засноване на закону одржања количине
кретања дуж струјне цеви (BEMT), ii) вртложне моделе и iii) моделе прорачунске
механике флуида (CFD) и размотрене су специфичности, предности и мане
сваког модела. У зависности од полазних претпоставки и комплексности
разматраних приступа, флуид је сматран идеалним или реалним (вискозним),
струјање је раванско или просторно, и углавном у потпуности турбулентно.
Обрађени примери обухватају опструјавање аеропрофила и струјање у линеарној
каскади (компресора и турбина), опструјавање хеликоптерских лопатица, елиса,
ротора ветротурбина са хоризонталном или вертикалном осом обртања.
Како је у питању опсежна тема истраживања, детаљно обрађена у бројним
претходно објављеним публикацијама, у овој научнотехничкој информацији
првенствено је стављен нагласак на: реализацију поједностављених али уједно
и побољшаних прорачунских алгоритама (са приказом кодова где је могуће),
давање практичних савета за решавање реалног инжењерског проблема као
што је опструјавање ротора присутно у многим гранама индустрије, као и на
упоредну анализу резултата добијених различитим прорачунским моделима са
доступним експерименталним. Првенствено су разматране прорачунате
вредности обртног момента (и механичке снаге), вучне силе, аеродинамички
коефицијенти, локалне расподеле величина струјног поља по лопатици и диску
ротора, струјно поље око и иза ротора, и сл.
Потом су верификовани модели додатно проширени и прилагођени за даљу
примену као што је проблем оптимизације који подразумева аутоматизовано
понављање великог броја прорачуна над параметризованим моделима.
Имплементиране су релативно нове, али веома популарне стохастичке,
еволутивне методе оптимизације као што су генетски алгоритам и
оптимизација ројем честица. Приказане су и могуће методологије
мултидисциплинарне вишекритеријумске оптимизације ротирајућих узгонских
површина.
PB  - Београд : Војнотехнички институт
T2  - Научнотехничке информациjе: монографска серија / Војнотехнички институт
T1  - Прилог нумеричком прорачуну и оптимизацији обртних узгонских површина
IS  - 1
VL  - LVI
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4376
ER  - 

@book{
author = "Svorcan, Jelena",
year = "2019",
abstract = "Предмет научнотехничке информације су: најчешће примењивани
различити приступи моделовању опструјавања обртних узгонских површина
(ротора), реализација прорачунских модела различите тачности и сложености, а
коначно и могуће оптимизације релевантних геометријских и структуралних
параметара разматраних површина. При томе су прорачунски приступи
подељени у три категорије: i) 1Д моделе засноване на закону одржања количине
кретања дуж струјне цеви (BEMT), ii) вртложне моделе и iii) моделе прорачунске
механике флуида (CFD) и размотрене су специфичности, предности и мане
сваког модела. У зависности од полазних претпоставки и комплексности
разматраних приступа, флуид је сматран идеалним или реалним (вискозним),
струјање је раванско или просторно, и углавном у потпуности турбулентно.
Обрађени примери обухватају опструјавање аеропрофила и струјање у линеарној
каскади (компресора и турбина), опструјавање хеликоптерских лопатица, елиса,
ротора ветротурбина са хоризонталном или вертикалном осом обртања.
Како је у питању опсежна тема истраживања, детаљно обрађена у бројним
претходно објављеним публикацијама, у овој научнотехничкој информацији
првенствено је стављен нагласак на: реализацију поједностављених али уједно
и побољшаних прорачунских алгоритама (са приказом кодова где је могуће),
давање практичних савета за решавање реалног инжењерског проблема као
што је опструјавање ротора присутно у многим гранама индустрије, као и на
упоредну анализу резултата добијених различитим прорачунским моделима са
доступним експерименталним. Првенствено су разматране прорачунате
вредности обртног момента (и механичке снаге), вучне силе, аеродинамички
коефицијенти, локалне расподеле величина струјног поља по лопатици и диску
ротора, струјно поље око и иза ротора, и сл.
Потом су верификовани модели додатно проширени и прилагођени за даљу
примену као што је проблем оптимизације који подразумева аутоматизовано
понављање великог броја прорачуна над параметризованим моделима.
Имплементиране су релативно нове, али веома популарне стохастичке,
еволутивне методе оптимизације као што су генетски алгоритам и
оптимизација ројем честица. Приказане су и могуће методологије
мултидисциплинарне вишекритеријумске оптимизације ротирајућих узгонских
површина.",
publisher = "Београд : Војнотехнички институт",
journal = "Научнотехничке информациjе: монографска серија / Војнотехнички институт",
title = "Прилог нумеричком прорачуну и оптимизацији обртних узгонских површина",
number = "1",
volume = "LVI",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4376"
}

Svorcan, J.. (2019). Прилог нумеричком прорачуну и оптимизацији обртних узгонских површина. in Научнотехничке информациjе: монографска серија / Војнотехнички институт
Београд : Војнотехнички институт., LVI(1).
https://hdl.handle.net/21.15107/rcub_machinery_4376

Svorcan J. Прилог нумеричком прорачуну и оптимизацији обртних узгонских површина. in Научнотехничке информациjе: монографска серија / Војнотехнички институт. 2019;LVI(1).
https://hdl.handle.net/21.15107/rcub_machinery_4376 .

Svorcan, Jelena, "Прилог нумеричком прорачуну и оптимизацији обртних узгонских површина" in Научнотехничке информациjе: монографска серија / Војнотехнички институт, LVI, no. 1 (2019),
https://hdl.handle.net/21.15107/rcub_machinery_4376 .

TY  - JOUR
AU  - Svorcan, Jelena
AU  - Trivković, Zorana
AU  - Ivanov, Toni
AU  - Baltić, Marija
AU  - Peković, Ognjen
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3187
AB  - Vetroturbine sa vertikalnom osom obrtanja predstavljaju privlačno oruđe za iskorišćenje energije vetra, naročito pogodno za male potrošače ili nepristupačne terene. Iako su jednostavne geometrije (ovde su pretpostavljene prave lopatice konstantnog aeroprofila), njihova aerodinamička analiza može biti izrazito složena. Metode proračunske mehanike fluida iskorišćene su za procenu aerodinamičkih performansi rotora. Rad daje pregled i ocenu mogućih strategija za izvršenje višekriterijumskih optimizacija tokom projektovanja lopatice vetroturbine sa vertikalnom osom obrtanja laminatne strukture koje se odnose na njene glavne strukturne parametre: redosled ređanja i broj slojeva laminata. Brojni proračuni strukture kompozitnih lopatica vetroturbine izvedeni su metodom konačnih elemenata. Višekriterijumske ograničene optimizacije rojem čestica, evolutivnim metodom, izvršene su u odnosu na: ukupnu masu lopatice, najveće pomeranje strukture lopatice pri statičkom opterećenju, proračunate sopstvene frekvencije i kriterijum loma po lopatici. Kombinacijom različitih ulaznih i izlaznih parametara (ciljnih funkcija i ograničenja) moguće je definisati veliki broj prihvatljivih, poboljšanih rešenja.
AB  - Vertical-axis wind turbines (VAWTs) are attractive tools for wind energy extraction particularly suitable for small consumers or off-grid areas. Although their geometry is simple (here, rectangular blade of constant airfoil is assumed), aerodynamic analysis may be quite complex. Computational fluid dynamics (CFD) approach is employed for the estimation of rotor aerodynamic performances. This paper provides a review of possible multi-objective optimization strategies for the design of small-scale VAWT laminate blades in terms of its main structural parameters: ply-order and ply-number. Numerous structural analyses of the composite turbine blades were performed by finite element method (FEM). Multi-criteria constrained optimizations, by an evolutionary method - particle swarm optimization (PSO), were performed with respect to blade total mass, maximum blade tip deflection under static loading, computed natural frequencies and failure index along the blade. By combining different input and output parameters (cost functions and constraints) a large variety of feasible solutions can be achieved.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Višekriterijumske ograničene optimizacije kompozitnih lopatica vetroturbina sa vertikalnom osom obrtanja bazirane na konačno-elementnoj analizi i optimizaciji brojem čestica
T1  - Multi-objective constrained optimizations of VAWT composite blades based on FEM and PSO
EP  - 893
IS  - 4
SP  - 887
VL  - 47
DO  - 10.5937/fmet1904887S
ER  - 

@article{
author = "Svorcan, Jelena and Trivković, Zorana and Ivanov, Toni and Baltić, Marija and Peković, Ognjen",
year = "2019",
abstract = "Vetroturbine sa vertikalnom osom obrtanja predstavljaju privlačno oruđe za iskorišćenje energije vetra, naročito pogodno za male potrošače ili nepristupačne terene. Iako su jednostavne geometrije (ovde su pretpostavljene prave lopatice konstantnog aeroprofila), njihova aerodinamička analiza može biti izrazito složena. Metode proračunske mehanike fluida iskorišćene su za procenu aerodinamičkih performansi rotora. Rad daje pregled i ocenu mogućih strategija za izvršenje višekriterijumskih optimizacija tokom projektovanja lopatice vetroturbine sa vertikalnom osom obrtanja laminatne strukture koje se odnose na njene glavne strukturne parametre: redosled ređanja i broj slojeva laminata. Brojni proračuni strukture kompozitnih lopatica vetroturbine izvedeni su metodom konačnih elemenata. Višekriterijumske ograničene optimizacije rojem čestica, evolutivnim metodom, izvršene su u odnosu na: ukupnu masu lopatice, najveće pomeranje strukture lopatice pri statičkom opterećenju, proračunate sopstvene frekvencije i kriterijum loma po lopatici. Kombinacijom različitih ulaznih i izlaznih parametara (ciljnih funkcija i ograničenja) moguće je definisati veliki broj prihvatljivih, poboljšanih rešenja., Vertical-axis wind turbines (VAWTs) are attractive tools for wind energy extraction particularly suitable for small consumers or off-grid areas. Although their geometry is simple (here, rectangular blade of constant airfoil is assumed), aerodynamic analysis may be quite complex. Computational fluid dynamics (CFD) approach is employed for the estimation of rotor aerodynamic performances. This paper provides a review of possible multi-objective optimization strategies for the design of small-scale VAWT laminate blades in terms of its main structural parameters: ply-order and ply-number. Numerous structural analyses of the composite turbine blades were performed by finite element method (FEM). Multi-criteria constrained optimizations, by an evolutionary method - particle swarm optimization (PSO), were performed with respect to blade total mass, maximum blade tip deflection under static loading, computed natural frequencies and failure index along the blade. By combining different input and output parameters (cost functions and constraints) a large variety of feasible solutions can be achieved.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Višekriterijumske ograničene optimizacije kompozitnih lopatica vetroturbina sa vertikalnom osom obrtanja bazirane na konačno-elementnoj analizi i optimizaciji brojem čestica, Multi-objective constrained optimizations of VAWT composite blades based on FEM and PSO",
pages = "893-887",
number = "4",
volume = "47",
doi = "10.5937/fmet1904887S"
}

Svorcan, J., Trivković, Z., Ivanov, T., Baltić, M.,& Peković, O.. (2019). Višekriterijumske ograničene optimizacije kompozitnih lopatica vetroturbina sa vertikalnom osom obrtanja bazirane na konačno-elementnoj analizi i optimizaciji brojem čestica. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 47(4), 887-893.
https://doi.org/10.5937/fmet1904887S

Svorcan J, Trivković Z, Ivanov T, Baltić M, Peković O. Višekriterijumske ograničene optimizacije kompozitnih lopatica vetroturbina sa vertikalnom osom obrtanja bazirane na konačno-elementnoj analizi i optimizaciji brojem čestica. in FME Transactions. 2019;47(4):887-893.
doi:10.5937/fmet1904887S .

Svorcan, Jelena, Trivković, Zorana, Ivanov, Toni, Baltić, Marija, Peković, Ognjen, "Višekriterijumske ograničene optimizacije kompozitnih lopatica vetroturbina sa vertikalnom osom obrtanja bazirane na konačno-elementnoj analizi i optimizaciji brojem čestica" in FME Transactions, 47, no. 4 (2019):887-893,
https://doi.org/10.5937/fmet1904887S . .

TY  - JOUR
AU  - Baltić, Marija
AU  - Svorcan, Jelena
AU  - Perić, Bojan
AU  - Vorkapić, Miloš
AU  - Ivanov, Toni
AU  - Peković, Ognjen
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3124
AB  - In order to investigate both static and dynamic characteristics of composite plates and validate a contemporary, non-invasive experimental technique a comparative experimental and numerical analysis was performed. Three, geometrically the same but different in ply orientation, carbon-epoxy laminates were tested in both healthy and damaged conditions. Damages were inflicted in a shape of horizontal crack. Experiments and numerical simulations were performed by digital image correlation (DIC) and finite element method (FEM), respectively. Obtained time-responses of the tested structures were fast Fourier transformed (FFT) to frequency domain for a clearer understanding of natural frequencies and oscillation modes. Results are presented in tabular and graphical form. The overall correspondence of two sets of structural displacements is satisfactory. Some discrepancies might be contributed to the idealized geometry and restraint consideration. Also, due to the fast damping of higher tones, the errors in determining higher natural frequencies increase but still remain in 5 % range.
PB  - Korean Soc Mechanical Engineers, Seoul
T2  - Journal of Mechanical Science and Technology
T1  - Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates
EP  - 2603
IS  - 6
SP  - 2597
VL  - 33
DO  - 10.1007/s12206-019-0507-7
ER  - 

@article{
author = "Baltić, Marija and Svorcan, Jelena and Perić, Bojan and Vorkapić, Miloš and Ivanov, Toni and Peković, Ognjen",
year = "2019",
abstract = "In order to investigate both static and dynamic characteristics of composite plates and validate a contemporary, non-invasive experimental technique a comparative experimental and numerical analysis was performed. Three, geometrically the same but different in ply orientation, carbon-epoxy laminates were tested in both healthy and damaged conditions. Damages were inflicted in a shape of horizontal crack. Experiments and numerical simulations were performed by digital image correlation (DIC) and finite element method (FEM), respectively. Obtained time-responses of the tested structures were fast Fourier transformed (FFT) to frequency domain for a clearer understanding of natural frequencies and oscillation modes. Results are presented in tabular and graphical form. The overall correspondence of two sets of structural displacements is satisfactory. Some discrepancies might be contributed to the idealized geometry and restraint consideration. Also, due to the fast damping of higher tones, the errors in determining higher natural frequencies increase but still remain in 5 % range.",
publisher = "Korean Soc Mechanical Engineers, Seoul",
journal = "Journal of Mechanical Science and Technology",
title = "Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates",
pages = "2603-2597",
number = "6",
volume = "33",
doi = "10.1007/s12206-019-0507-7"
}

Baltić, M., Svorcan, J., Perić, B., Vorkapić, M., Ivanov, T.,& Peković, O.. (2019). Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates. in Journal of Mechanical Science and Technology
Korean Soc Mechanical Engineers, Seoul., 33(6), 2597-2603.
https://doi.org/10.1007/s12206-019-0507-7

Baltić M, Svorcan J, Perić B, Vorkapić M, Ivanov T, Peković O. Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates. in Journal of Mechanical Science and Technology. 2019;33(6):2597-2603.
doi:10.1007/s12206-019-0507-7 .

Baltić, Marija, Svorcan, Jelena, Perić, Bojan, Vorkapić, Miloš, Ivanov, Toni, Peković, Ognjen, "Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates" in Journal of Mechanical Science and Technology, 33, no. 6 (2019):2597-2603,
https://doi.org/10.1007/s12206-019-0507-7 . .

TY  - JOUR
AU  - Svorcan, Jelena
AU  - Hasan, Sakib Mohammad
AU  - Baltić, Marija
AU  - Simonović, Aleksandar
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3120
AB  - Osnovne uloge bespilotnih letelica podrazumevaju: osmatranje, nadzor, prenos robe, daljinsko očitavanje i različite bezbedonosne zadatke. Poboljšana klasa bespilotnih letelica su one koje su posebno projektovane za velike visine leta i duge istrajnosti (uglavnom pri podzvučnim brzinama krstarenja). Do sada je probano nekoliko varijanti koje se razlikuju kako po dimenzijama tako i po primenjenim tehničkim rešenjima. Uobičajeni pristup podrazumeva standarnu konfiguraciju krilotrup-zadnje repne površine i let pomoću elise koja je najefikasnija u tom opsegu brzina. Rad ukratko prikazuje preliminarnu aerodinamičku analizu glavnih uzgonskih površina, ali i detaljniji opis izvedene višekriterijumske optimizacije elise sposobne da obezbedi dovoljni potisak na zadatoj visini i brzini krstarenja. Aerodinamičke performanse razmatranih elisa procenjene su kombinovanim modelom. Izabrani optimizacioni metod, genetski algoritam, pogodan je za probleme koji uključuju veliki broj ulaznih promenljivih.
AB  - The main roles of unmanned air vehicles (UAVs) include: observation, surveillance, transportation, remote sensing and various security tasks. Improved, augmented type of UAVs are high-altitude long-endurance (HALE) aircraft capable and designed, as their name suggests, for lengthy flights at higher altitudes (which also usually implies subsonic cruising velocities). Different variants, in both size and applied technical solutions, have been tried. Common approach incorporates standard wing-fuselage-aft empennage configuration and propelled flight as the most efficient for the required speed range. The paper gives a brief overview of a preliminary aerodynamic analysis of the main lifting surfaces as well as a detailed description of the performed multi-objective optimization of the propeller capable of producing a sufficient amount of thrust at the cruising altitude and speed. Aerodynamic performances of the investigated propellers are estimated by a simple blade element momentum theory (BEMT). The chosen optimizing method, genetic algorithm (GA), is suitable for dealing with a large number of input variables.
PB  - Vojnotehnički institut, Beograd
T2  - Scientific Technical Review
T1  - Dizajn optimalne elise za buduću bespilotnu letelicu za velike visine i duge istrajnosti
T1  - Optimal Propeller design for future HALE UAV
EP  - 31
IS  - 2
SP  - 25
VL  - 69
DO  - 10.5937/str1902025S
ER  - 

@article{
author = "Svorcan, Jelena and Hasan, Sakib Mohammad and Baltić, Marija and Simonović, Aleksandar",
year = "2019",
abstract = "Osnovne uloge bespilotnih letelica podrazumevaju: osmatranje, nadzor, prenos robe, daljinsko očitavanje i različite bezbedonosne zadatke. Poboljšana klasa bespilotnih letelica su one koje su posebno projektovane za velike visine leta i duge istrajnosti (uglavnom pri podzvučnim brzinama krstarenja). Do sada je probano nekoliko varijanti koje se razlikuju kako po dimenzijama tako i po primenjenim tehničkim rešenjima. Uobičajeni pristup podrazumeva standarnu konfiguraciju krilotrup-zadnje repne površine i let pomoću elise koja je najefikasnija u tom opsegu brzina. Rad ukratko prikazuje preliminarnu aerodinamičku analizu glavnih uzgonskih površina, ali i detaljniji opis izvedene višekriterijumske optimizacije elise sposobne da obezbedi dovoljni potisak na zadatoj visini i brzini krstarenja. Aerodinamičke performanse razmatranih elisa procenjene su kombinovanim modelom. Izabrani optimizacioni metod, genetski algoritam, pogodan je za probleme koji uključuju veliki broj ulaznih promenljivih., The main roles of unmanned air vehicles (UAVs) include: observation, surveillance, transportation, remote sensing and various security tasks. Improved, augmented type of UAVs are high-altitude long-endurance (HALE) aircraft capable and designed, as their name suggests, for lengthy flights at higher altitudes (which also usually implies subsonic cruising velocities). Different variants, in both size and applied technical solutions, have been tried. Common approach incorporates standard wing-fuselage-aft empennage configuration and propelled flight as the most efficient for the required speed range. The paper gives a brief overview of a preliminary aerodynamic analysis of the main lifting surfaces as well as a detailed description of the performed multi-objective optimization of the propeller capable of producing a sufficient amount of thrust at the cruising altitude and speed. Aerodynamic performances of the investigated propellers are estimated by a simple blade element momentum theory (BEMT). The chosen optimizing method, genetic algorithm (GA), is suitable for dealing with a large number of input variables.",
publisher = "Vojnotehnički institut, Beograd",
journal = "Scientific Technical Review",
title = "Dizajn optimalne elise za buduću bespilotnu letelicu za velike visine i duge istrajnosti, Optimal Propeller design for future HALE UAV",
pages = "31-25",
number = "2",
volume = "69",
doi = "10.5937/str1902025S"
}

Svorcan, J., Hasan, S. M., Baltić, M.,& Simonović, A.. (2019). Dizajn optimalne elise za buduću bespilotnu letelicu za velike visine i duge istrajnosti. in Scientific Technical Review
Vojnotehnički institut, Beograd., 69(2), 25-31.
https://doi.org/10.5937/str1902025S

Svorcan J, Hasan SM, Baltić M, Simonović A. Dizajn optimalne elise za buduću bespilotnu letelicu za velike visine i duge istrajnosti. in Scientific Technical Review. 2019;69(2):25-31.
doi:10.5937/str1902025S .

Svorcan, Jelena, Hasan, Sakib Mohammad, Baltić, Marija, Simonović, Aleksandar, "Dizajn optimalne elise za buduću bespilotnu letelicu za velike visine i duge istrajnosti" in Scientific Technical Review, 69, no. 2 (2019):25-31,
https://doi.org/10.5937/str1902025S . .

TY  - THES
AU  - Ivanov, Toni
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=7053
UR  - https://nardus.mpn.gov.rs/handle/123456789/11732
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:20685/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=515005091
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/62
AB  - Rastući trend u pogledu istraživanja vezana za električni pogon nije zaobi- šao vazduhoplovnu granu industrije. Poslednjih godina, veliki broj svetskih kompanija i istraživačkih centara pokušava da razvije “zelen” pogon letelica. Takođe, ubrzanim razvojem električnih energetskih komponenti (elektromotori sa stalnim magnetima, litijum-polimerne baterije, mosfet tranzistori i sl.) stvorila se velika zastupljenost električnih vazduhoplovnih pogona u oblasti malih bespilotnih letelica. U skladu sa ovim trendom predmet istraživanja ove disertacije predstavljaju elektroventilatorski sistemi propulzora. U okviru istraživanja izvršen je detaljan pregled literature vezane za ventilatorske propulzore nakon čega su predstavljeni matematički modeli pojedinih komponen- ti sistema propulzora. Takođe su predstavljene i metode parametrizacije geomet- rijskog oblika propulzora B splajnovima i CST metodom kao i metaheuristički metodi optimizacije: genetski algoritmi i metod roja čestica. Pomoću definisanih modela i metoda razvijena je metodologija optimizaci- je elektroventilatorskog sistema propulzora koja je predstavljena kroz tri poje- dinačna primera kao i kroz integrisani primer optimizacije i integracije pro- pulzora na malu bespilotnu VTOL letelicu. Optimizacijom postojećeg propulzo- ra ukazano je na mogućnost poboljšanja njegovih performansi za određeni režim rada a razvijena je i metodologija za višekriterijumsku optimizaciju propulzora pogonjenim električnim pogonom za čije potrebe je stvorena i baza komercijalno dostupnih komponenata.
AB  - The growing trend in terms of electric drive research did not bypass the aerospace industry. In recent years, a large number of world companies and research centers have been trying to develop a “green” aircraft propulsion system. Also, with the rapid development of electric power components (permanent magnet motors, lithium-polymer batteries, MOSFET transistors etc.) there is a large representation of electric aircraft propulsion in the field of small UAVs. In line with this trend the subject of research of this dissertation are electric ducted fan propulsion systems. Within the research a detailed review of literature considering fan propulsion systems is done after which the mathematical models of the propulsion system individual components are presented. Also, the methods for geometric shape parameterization via B-Splines and CST as well as the metaheuristic optimization methods: genetic algorithms and particle swarm optimization are presented. Using the defined methods and models an electric ducted fan optimization methodology is developed which is presented through three individual examples as well as an integral example of a small VTOL aircraft propulsion system optimization and integration. By the optimization of an existing propulsor the possibility of improving its performance for a certain design point is shown while a multiobjective optimization methodology of a propulsion system which is electrically driven is also developed for whose needs a database of commercially available components was created. For the purpose of experimental investigation, a propulsion test rig was developed with which the influence of the inlet geometry on a commercially available fan is examined and a numerical analysis via the finite volume method was done in order to obtain a qualitative insight in the propulsion system performance.
PB  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Optimizacija i integracija elektroventilantorskog sistema propulzora
T1  - Optimization and integration of an electric ducted fan propulsion system
UR  - https://hdl.handle.net/21.15107/rcub_nardus_11732
ER  - 

@phdthesis{
author = "Ivanov, Toni",
year = "2018",
abstract = "Rastući trend u pogledu istraživanja vezana za električni pogon nije zaobi- šao vazduhoplovnu granu industrije. Poslednjih godina, veliki broj svetskih kompanija i istraživačkih centara pokušava da razvije “zelen” pogon letelica. Takođe, ubrzanim razvojem električnih energetskih komponenti (elektromotori sa stalnim magnetima, litijum-polimerne baterije, mosfet tranzistori i sl.) stvorila se velika zastupljenost električnih vazduhoplovnih pogona u oblasti malih bespilotnih letelica. U skladu sa ovim trendom predmet istraživanja ove disertacije predstavljaju elektroventilatorski sistemi propulzora. U okviru istraživanja izvršen je detaljan pregled literature vezane za ventilatorske propulzore nakon čega su predstavljeni matematički modeli pojedinih komponen- ti sistema propulzora. Takođe su predstavljene i metode parametrizacije geomet- rijskog oblika propulzora B splajnovima i CST metodom kao i metaheuristički metodi optimizacije: genetski algoritmi i metod roja čestica. Pomoću definisanih modela i metoda razvijena je metodologija optimizaci- je elektroventilatorskog sistema propulzora koja je predstavljena kroz tri poje- dinačna primera kao i kroz integrisani primer optimizacije i integracije pro- pulzora na malu bespilotnu VTOL letelicu. Optimizacijom postojećeg propulzo- ra ukazano je na mogućnost poboljšanja njegovih performansi za određeni režim rada a razvijena je i metodologija za višekriterijumsku optimizaciju propulzora pogonjenim električnim pogonom za čije potrebe je stvorena i baza komercijalno dostupnih komponenata., The growing trend in terms of electric drive research did not bypass the aerospace industry. In recent years, a large number of world companies and research centers have been trying to develop a “green” aircraft propulsion system. Also, with the rapid development of electric power components (permanent magnet motors, lithium-polymer batteries, MOSFET transistors etc.) there is a large representation of electric aircraft propulsion in the field of small UAVs. In line with this trend the subject of research of this dissertation are electric ducted fan propulsion systems. Within the research a detailed review of literature considering fan propulsion systems is done after which the mathematical models of the propulsion system individual components are presented. Also, the methods for geometric shape parameterization via B-Splines and CST as well as the metaheuristic optimization methods: genetic algorithms and particle swarm optimization are presented. Using the defined methods and models an electric ducted fan optimization methodology is developed which is presented through three individual examples as well as an integral example of a small VTOL aircraft propulsion system optimization and integration. By the optimization of an existing propulsor the possibility of improving its performance for a certain design point is shown while a multiobjective optimization methodology of a propulsion system which is electrically driven is also developed for whose needs a database of commercially available components was created. For the purpose of experimental investigation, a propulsion test rig was developed with which the influence of the inlet geometry on a commercially available fan is examined and a numerical analysis via the finite volume method was done in order to obtain a qualitative insight in the propulsion system performance.",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Optimizacija i integracija elektroventilantorskog sistema propulzora, Optimization and integration of an electric ducted fan propulsion system",
url = "https://hdl.handle.net/21.15107/rcub_nardus_11732"
}

Ivanov, T.. (2018). Optimizacija i integracija elektroventilantorskog sistema propulzora. 
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_11732

Ivanov T. Optimizacija i integracija elektroventilantorskog sistema propulzora. 2018;.
https://hdl.handle.net/21.15107/rcub_nardus_11732 .

Ivanov, Toni, "Optimizacija i integracija elektroventilantorskog sistema propulzora" (2018),
https://hdl.handle.net/21.15107/rcub_nardus_11732 .

TY  - CONF
AU  - Vorkapić, Miloš
AU  - Ivanov, Toni
AU  - Alsabri, Anwer
AU  - Simonović, Aleksandar
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5434
AB  - Libija je zemlja bogata naftom i prirodnim gasom čije učešće u proizvodnji električne energije je preko 90%. Međutim, sve više su u upotrebi i obnovljivi izvori energije, kao što je energija vetra. U Libiji postoji ogromni potencijal za upotrebu energije vetra, a on je najveći u priobalnom delu. Ovim radom analizirana je brzina vetra radi upotrebe vetroturbina u ruralnim oblastima Libije.
PB  - Univerzitet u Beogradu - Mašinski fakultet
C3  - Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference
T1  - Predikcija brzine vetra na teritoriji Libije primenom veštačkih neuronskih mreža
EP  - 3.59
SP  - 3.54
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5434
ER  - 

@conference{
author = "Vorkapić, Miloš and Ivanov, Toni and Alsabri, Anwer and Simonović, Aleksandar",
year = "2018",
abstract = "Libija je zemlja bogata naftom i prirodnim gasom čije učešće u proizvodnji električne energije je preko 90%. Međutim, sve više su u upotrebi i obnovljivi izvori energije, kao što je energija vetra. U Libiji postoji ogromni potencijal za upotrebu energije vetra, a on je najveći u priobalnom delu. Ovim radom analizirana je brzina vetra radi upotrebe vetroturbina u ruralnim oblastima Libije.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet",
journal = "Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference",
title = "Predikcija brzine vetra na teritoriji Libije primenom veštačkih neuronskih mreža",
pages = "3.59-3.54",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5434"
}

Vorkapić, M., Ivanov, T., Alsabri, A.,& Simonović, A.. (2018). Predikcija brzine vetra na teritoriji Libije primenom veštačkih neuronskih mreža. in Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference
Univerzitet u Beogradu - Mašinski fakultet., 3.54-3.59.
https://hdl.handle.net/21.15107/rcub_machinery_5434

Vorkapić M, Ivanov T, Alsabri A, Simonović A. Predikcija brzine vetra na teritoriji Libije primenom veštačkih neuronskih mreža. in Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference. 2018;:3.54-3.59.
https://hdl.handle.net/21.15107/rcub_machinery_5434 .

Vorkapić, Miloš, Ivanov, Toni, Alsabri, Anwer, Simonović, Aleksandar, "Predikcija brzine vetra na teritoriji Libije primenom veštačkih neuronskih mreža" in Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference (2018):3.54-3.59,
https://hdl.handle.net/21.15107/rcub_machinery_5434 .

TY  - CONF
AU  - Hasan, Sakib Mohammad
AU  - Ivanov, Toni
AU  - Simonović, Aleksandar
AU  - Baltić, Marija
AU  - Svorcan, Jelena
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6415
AB  - Napredak u 3D štampi poslednjih godina omogućio je ekonomičniju proizvodnju visoko složenih delova, naročito pri izradi prototipova. Danas su na tržištu dostupne mnoge komercijalne 3D štamparske tehhike. Najšire korišćen postupak je metoda modeliranja fuzionim taloženjem filamenta (FDM). Mehaničke karakteristike delova proizvedenih ovom metodom, mogu značajno da variraju u zavisnosti od materijala filamenta, podešavanja štampača, spoljašnjih uticaja i slično. U ovom radu korišćena je tehnika digitalne korelacije slika pri određivanju dvodimenzionalnih pomeranja i deformacija delova štampanih PLA filamentima i sa različitim podešavanjima štampača kao što su temperatura i brzina štampanja. Nakon završenog postupka ispitivanja, prikazana je analiza rezultata u cilju određivanja karakteristika štampanih delova izrađenih FDM metodom, kao i da bi se odredila optimalna štamparska podešavanja.
PB  - Univerzitet u Beogradu - Mašinski fakultet
C3  - 41. JUPITER konferencija
T1  - Eksperimentalno ispitivanje 3D štampanih delova primenom digitalne korelacije slika
EP  - 3.14
SP  - 3.8
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6415
ER  - 

@conference{
author = "Hasan, Sakib Mohammad and Ivanov, Toni and Simonović, Aleksandar and Baltić, Marija and Svorcan, Jelena",
year = "2018",
abstract = "Napredak u 3D štampi poslednjih godina omogućio je ekonomičniju proizvodnju visoko složenih delova, naročito pri izradi prototipova. Danas su na tržištu dostupne mnoge komercijalne 3D štamparske tehhike. Najšire korišćen postupak je metoda modeliranja fuzionim taloženjem filamenta (FDM). Mehaničke karakteristike delova proizvedenih ovom metodom, mogu značajno da variraju u zavisnosti od materijala filamenta, podešavanja štampača, spoljašnjih uticaja i slično. U ovom radu korišćena je tehnika digitalne korelacije slika pri određivanju dvodimenzionalnih pomeranja i deformacija delova štampanih PLA filamentima i sa različitim podešavanjima štampača kao što su temperatura i brzina štampanja. Nakon završenog postupka ispitivanja, prikazana je analiza rezultata u cilju određivanja karakteristika štampanih delova izrađenih FDM metodom, kao i da bi se odredila optimalna štamparska podešavanja.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet",
journal = "41. JUPITER konferencija",
title = "Eksperimentalno ispitivanje 3D štampanih delova primenom digitalne korelacije slika",
pages = "3.14-3.8",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6415"
}

Hasan, S. M., Ivanov, T., Simonović, A., Baltić, M.,& Svorcan, J.. (2018). Eksperimentalno ispitivanje 3D štampanih delova primenom digitalne korelacije slika. in 41. JUPITER konferencija
Univerzitet u Beogradu - Mašinski fakultet., 3.8-3.14.
https://hdl.handle.net/21.15107/rcub_machinery_6415

Hasan SM, Ivanov T, Simonović A, Baltić M, Svorcan J. Eksperimentalno ispitivanje 3D štampanih delova primenom digitalne korelacije slika. in 41. JUPITER konferencija. 2018;:3.8-3.14.
https://hdl.handle.net/21.15107/rcub_machinery_6415 .

Hasan, Sakib Mohammad, Ivanov, Toni, Simonović, Aleksandar, Baltić, Marija, Svorcan, Jelena, "Eksperimentalno ispitivanje 3D štampanih delova primenom digitalne korelacije slika" in 41. JUPITER konferencija (2018):3.8-3.14,
https://hdl.handle.net/21.15107/rcub_machinery_6415 .

TY  - CONF
AU  - Perić, Bojan
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
AU  - Simonović, Aleksandar
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6230
AB  - U ovom radu numerički je ispitivana vetroturbina sa horizontalnom osom obrtanja DTU 10MW. Izvršena je
aerodinamička analiza referentnog rotora vetroturbine primenom metode elementa lopatice kao i metode
konačnih zapremina pomoću Ansys FLUENT softverskog paketa. Kombinacijom ovih metoda omogućeno je
dobijanje značajnih preliminarnih rezultata za projektovanjevetroturbina sa rotorima velikih prečnika.
PB  - Univerzitet u Beogradu-Mašinski fakultet
C3  - Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference, 2018, 7-12. Maj
T1  - NUMERIČKA ANALIZA AERODINAMIČKIH KARAKTERISTIKA ROTORA VETROTURBINE SA HORIZONTALNOM OSOM OBRTANJA
EP  - 2.30
SP  - 2.25
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6230
ER  - 

@conference{
author = "Perić, Bojan and Svorcan, Jelena and Peković, Ognjen and Simonović, Aleksandar",
year = "2018",
abstract = "U ovom radu numerički je ispitivana vetroturbina sa horizontalnom osom obrtanja DTU 10MW. Izvršena je
aerodinamička analiza referentnog rotora vetroturbine primenom metode elementa lopatice kao i metode
konačnih zapremina pomoću Ansys FLUENT softverskog paketa. Kombinacijom ovih metoda omogućeno je
dobijanje značajnih preliminarnih rezultata za projektovanjevetroturbina sa rotorima velikih prečnika.",
publisher = "Univerzitet u Beogradu-Mašinski fakultet",
journal = "Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference, 2018, 7-12. Maj",
title = "NUMERIČKA ANALIZA AERODINAMIČKIH KARAKTERISTIKA ROTORA VETROTURBINE SA HORIZONTALNOM OSOM OBRTANJA",
pages = "2.30-2.25",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6230"
}

Perić, B., Svorcan, J., Peković, O.,& Simonović, A.. (2018). NUMERIČKA ANALIZA AERODINAMIČKIH KARAKTERISTIKA ROTORA VETROTURBINE SA HORIZONTALNOM OSOM OBRTANJA. in Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference, 2018, 7-12. Maj
Univerzitet u Beogradu-Mašinski fakultet., 2.25-2.30.
https://hdl.handle.net/21.15107/rcub_machinery_6230

Perić B, Svorcan J, Peković O, Simonović A. NUMERIČKA ANALIZA AERODINAMIČKIH KARAKTERISTIKA ROTORA VETROTURBINE SA HORIZONTALNOM OSOM OBRTANJA. in Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference, 2018, 7-12. Maj. 2018;:2.25-2.30.
https://hdl.handle.net/21.15107/rcub_machinery_6230 .

Perić, Bojan, Svorcan, Jelena, Peković, Ognjen, Simonović, Aleksandar, "NUMERIČKA ANALIZA AERODINAMIČKIH KARAKTERISTIKA ROTORA VETROTURBINE SA HORIZONTALNOM OSOM OBRTANJA" in Zbornik radova - 41. JUPITER konferencija / Proceedings - 41nd JUPITER Conference, 2018, 7-12. Maj (2018):2.25-2.30,
https://hdl.handle.net/21.15107/rcub_machinery_6230 .

TY  - CONF
AU  - Perić, B.
AU  - Simonović, Aleksandar
AU  - Ivanov, Toni
AU  - Stupar, Slobodan
AU  - Vorkapić, Miloš
AU  - Peković, Ognjen
AU  - Svorcan, Jelena
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2851
AB  - Metal membranes are defined as thin steel circular plates. The metal membranes are widely used in the measurement technique and they are constantly loaded over the entire surface. In case that a membrane is loaded with uniform load over the entire surface. In case that the membrane is stiffened over the edge, then it is called a diaphragm. According to the making method membranes are divided into flat and corrugated. Corrugated membranes are used mainly in a low pressure area. Membranes are most commonly made of firm alloy austenitic steel. In this paper numerical and experimental analysis of a thin corrugated diaphragm 24 mm diameter is presented, with variable material thickness and variable corrugations geometry. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm. Experimental results are compared with numerical results in ANSYS software package. A comparative analysis of the sinusoidal and toroidal diaphragms has shown that there is a higher sensitivity of the sinusoidal diaphragm, that is, if the thickness of the diaphragm increases, and their stiffness is increased. In general, for small pressure ranges from 10 mbar to 50 mbar, the sinusoidal diaphragms have a faster response.
PB  - Elsevier Science Bv, Amsterdam
C3  - Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
T1  - Design and testing characteristics of thin stainless steel diaphragms
EP  - 2201
SP  - 2196
VL  - 13
DO  - 10.1016/j.prostr.2018.12.141
ER  - 

@conference{
author = "Perić, B. and Simonović, Aleksandar and Ivanov, Toni and Stupar, Slobodan and Vorkapić, Miloš and Peković, Ognjen and Svorcan, Jelena",
year = "2018",
abstract = "Metal membranes are defined as thin steel circular plates. The metal membranes are widely used in the measurement technique and they are constantly loaded over the entire surface. In case that a membrane is loaded with uniform load over the entire surface. In case that the membrane is stiffened over the edge, then it is called a diaphragm. According to the making method membranes are divided into flat and corrugated. Corrugated membranes are used mainly in a low pressure area. Membranes are most commonly made of firm alloy austenitic steel. In this paper numerical and experimental analysis of a thin corrugated diaphragm 24 mm diameter is presented, with variable material thickness and variable corrugations geometry. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm. Experimental results are compared with numerical results in ANSYS software package. A comparative analysis of the sinusoidal and toroidal diaphragms has shown that there is a higher sensitivity of the sinusoidal diaphragm, that is, if the thickness of the diaphragm increases, and their stiffness is increased. In general, for small pressure ranges from 10 mbar to 50 mbar, the sinusoidal diaphragms have a faster response.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity",
title = "Design and testing characteristics of thin stainless steel diaphragms",
pages = "2201-2196",
volume = "13",
doi = "10.1016/j.prostr.2018.12.141"
}

Perić, B., Simonović, A., Ivanov, T., Stupar, S., Vorkapić, M., Peković, O.,& Svorcan, J.. (2018). Design and testing characteristics of thin stainless steel diaphragms. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
Elsevier Science Bv, Amsterdam., 13, 2196-2201.
https://doi.org/10.1016/j.prostr.2018.12.141

Perić B, Simonović A, Ivanov T, Stupar S, Vorkapić M, Peković O, Svorcan J. Design and testing characteristics of thin stainless steel diaphragms. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity. 2018;13:2196-2201.
doi:10.1016/j.prostr.2018.12.141 .

Perić, B., Simonović, Aleksandar, Ivanov, Toni, Stupar, Slobodan, Vorkapić, Miloš, Peković, Ognjen, Svorcan, Jelena, "Design and testing characteristics of thin stainless steel diaphragms" in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity, 13 (2018):2196-2201,
https://doi.org/10.1016/j.prostr.2018.12.141 . .

TY  - CONF
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
AU  - Ivanov, Toni
AU  - Baltić, Marija
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4301
AB  - Numerical investigation of a representative (turboprop commuter) propeller slipstream aerodynamic effects on different nacelle/wing combinations is performed in a commercial software package ANSYS FLUENT. The obtained numerical results are compared to the experimental values of pressure coefficient obtained in a low speed wind tunnel investigation. The study is performed for two reasons: i) to gain more physical insight into the complex flow field that consequently appears, and ii) to evaluate the chosen software and test its abilities to adequately represent this unsteady, three-dimensional, rotational, interacting flow field. In the presented numerical study, flow field is computed by Unsteady Reynolds Averaged Navier-Stokes (URANS) equations closed by 2-equation k-ω SST turbulence model. Presented results include fluid flow visualizations in the form of pressure coefficient and vorticity contours and the values of aerodynamic coefficients.
PB  - Belgrade : Military Technical Institute - VTI
C3  - Proceedings / 8th International Scientific Conference on Defensive Technologies OTEH 2018
T1  - Computational analysis of propeller slipstream aerodynamic effects
EP  - 32
SP  - 27
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4301
ER  - 

@conference{
author = "Svorcan, Jelena and Peković, Ognjen and Ivanov, Toni and Baltić, Marija",
year = "2018",
abstract = "Numerical investigation of a representative (turboprop commuter) propeller slipstream aerodynamic effects on different nacelle/wing combinations is performed in a commercial software package ANSYS FLUENT. The obtained numerical results are compared to the experimental values of pressure coefficient obtained in a low speed wind tunnel investigation. The study is performed for two reasons: i) to gain more physical insight into the complex flow field that consequently appears, and ii) to evaluate the chosen software and test its abilities to adequately represent this unsteady, three-dimensional, rotational, interacting flow field. In the presented numerical study, flow field is computed by Unsteady Reynolds Averaged Navier-Stokes (URANS) equations closed by 2-equation k-ω SST turbulence model. Presented results include fluid flow visualizations in the form of pressure coefficient and vorticity contours and the values of aerodynamic coefficients.",
publisher = "Belgrade : Military Technical Institute - VTI",
journal = "Proceedings / 8th International Scientific Conference on Defensive Technologies OTEH 2018",
title = "Computational analysis of propeller slipstream aerodynamic effects",
pages = "32-27",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4301"
}

Svorcan, J., Peković, O., Ivanov, T.,& Baltić, M.. (2018). Computational analysis of propeller slipstream aerodynamic effects. in Proceedings / 8th International Scientific Conference on Defensive Technologies OTEH 2018
Belgrade : Military Technical Institute - VTI., 27-32.
https://hdl.handle.net/21.15107/rcub_machinery_4301

Svorcan J, Peković O, Ivanov T, Baltić M. Computational analysis of propeller slipstream aerodynamic effects. in Proceedings / 8th International Scientific Conference on Defensive Technologies OTEH 2018. 2018;:27-32.
https://hdl.handle.net/21.15107/rcub_machinery_4301 .

Svorcan, Jelena, Peković, Ognjen, Ivanov, Toni, Baltić, Marija, "Computational analysis of propeller slipstream aerodynamic effects" in Proceedings / 8th International Scientific Conference on Defensive Technologies OTEH 2018 (2018):27-32,
https://hdl.handle.net/21.15107/rcub_machinery_4301 .

TY  - CONF
AU  - Perić, Bojan
AU  - Simonović, Aleksandar
AU  - Ivanov, Toni
AU  - Stupar, Slobodan
AU  - Vorkapić, Miloš
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6212
AB  - Matai membranes are the thin circular plates. For transducers and pressure transmitters, it is 
assumed that the membrane is loaded with uniform load over the entire surface. ln case that the membrane is  rigid over the edge, then it is called a diaphragm. ln general, the membranes are divided into fiat and  corrugated. Corrugated diaphragms can resist much higher pressure than fiat diaphragms and they are used mainly in the low pressure area. ln contact with various aggressive fluids, membranes are most commonly made of high alloy austenitic steel, which have high corrosion resistance, have good spring properties and they are stable at different temperatures. The deflection analyses of corrugated diaphragms are very important in sensitivity of transducers/transmitters. The application of corrugated diaphragms gives possibility to contrai 
sensitivity of thin diaphragms by geometrical parameters. ln this paper numerical and experimental structural analysis of a thin corrugated diaphragm 19 mm diameter, with variable material thickness and corrugation number is presented. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm. The measured deflections are compared with numerical results in ANSYS software package. The results  showed small deviations between numerical and experimental data, which is very important for further  diaphragm application of measurement instruments.
PB  - Faculty of Engineering, University of Rijeka
C3  - Proceedings of International Conference on Innovative Technologies IN-TECH 2018, 5-7. Septembar, 2018., Zagreb, Croatia
T1  - Numerical analysis of stainless steel diaphragm for low pressure measurement
EP  - 128
SP  - 125
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6212
ER  - 

@conference{
author = "Perić, Bojan and Simonović, Aleksandar and Ivanov, Toni and Stupar, Slobodan and Vorkapić, Miloš and Svorcan, Jelena and Peković, Ognjen",
year = "2018",
abstract = "Matai membranes are the thin circular plates. For transducers and pressure transmitters, it is 
assumed that the membrane is loaded with uniform load over the entire surface. ln case that the membrane is  rigid over the edge, then it is called a diaphragm. ln general, the membranes are divided into fiat and  corrugated. Corrugated diaphragms can resist much higher pressure than fiat diaphragms and they are used mainly in the low pressure area. ln contact with various aggressive fluids, membranes are most commonly made of high alloy austenitic steel, which have high corrosion resistance, have good spring properties and they are stable at different temperatures. The deflection analyses of corrugated diaphragms are very important in sensitivity of transducers/transmitters. The application of corrugated diaphragms gives possibility to contrai 
sensitivity of thin diaphragms by geometrical parameters. ln this paper numerical and experimental structural analysis of a thin corrugated diaphragm 19 mm diameter, with variable material thickness and corrugation number is presented. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm. The measured deflections are compared with numerical results in ANSYS software package. The results  showed small deviations between numerical and experimental data, which is very important for further  diaphragm application of measurement instruments.",
publisher = "Faculty of Engineering, University of Rijeka",
journal = "Proceedings of International Conference on Innovative Technologies IN-TECH 2018, 5-7. Septembar, 2018., Zagreb, Croatia",
title = "Numerical analysis of stainless steel diaphragm for low pressure measurement",
pages = "128-125",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6212"
}

Perić, B., Simonović, A., Ivanov, T., Stupar, S., Vorkapić, M., Svorcan, J.,& Peković, O.. (2018). Numerical analysis of stainless steel diaphragm for low pressure measurement. in Proceedings of International Conference on Innovative Technologies IN-TECH 2018, 5-7. Septembar, 2018., Zagreb, Croatia
Faculty of Engineering, University of Rijeka., 125-128.
https://hdl.handle.net/21.15107/rcub_machinery_6212

Perić B, Simonović A, Ivanov T, Stupar S, Vorkapić M, Svorcan J, Peković O. Numerical analysis of stainless steel diaphragm for low pressure measurement. in Proceedings of International Conference on Innovative Technologies IN-TECH 2018, 5-7. Septembar, 2018., Zagreb, Croatia. 2018;:125-128.
https://hdl.handle.net/21.15107/rcub_machinery_6212 .

Perić, Bojan, Simonović, Aleksandar, Ivanov, Toni, Stupar, Slobodan, Vorkapić, Miloš, Svorcan, Jelena, Peković, Ognjen, "Numerical analysis of stainless steel diaphragm for low pressure measurement" in Proceedings of International Conference on Innovative Technologies IN-TECH 2018, 5-7. Septembar, 2018., Zagreb, Croatia (2018):125-128,
https://hdl.handle.net/21.15107/rcub_machinery_6212 .

TY  - JOUR
AU  - Petrović, Andrija
AU  - Svorcan, Jelena
AU  - Pejčev, Aleksandar
AU  - Radenković, Darko
AU  - Petrović, Aleksandar
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2930
AB  - Different applications of a variable area convergent-divergent nozzle are found in various parts of the industry. This paper presents the development of a new design methodology for a variable area convergent-divergent nozzle, to maintain constant nozzle area ratio for different values of mass flow rates. The validation of the presented model was carried out on an example supersonic ejector using experimental, numerical and analytical data. Analytical (one dimensional) and computational fluid dynamics models showed satisfactory prediction performance in comparison with the experiment. The average entrainment ratio error was between 10% and 7%, respectively. Results confirmed that the velocity of the primary fluid at the nozzle outlet is in accordance with the one dimensional analysis. Although disturbances (strong and weak shock waves) are visible, their effects are negligible. Also, supersonic ejector performances are presented through relations between entrainment ratio, outlet pressure and spindle position. Disadvantages of variable area nozzle utilization in ejector applications are emphasized.
PB  - Elsevier Science Inc, New York
T2  - Applied Mathematical Modelling
T1  - Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods
EP  - 225
SP  - 206
VL  - 57
DO  - 10.1016/j.apm.2018.01.016
ER  - 

@article{
author = "Petrović, Andrija and Svorcan, Jelena and Pejčev, Aleksandar and Radenković, Darko and Petrović, Aleksandar",
year = "2018",
abstract = "Different applications of a variable area convergent-divergent nozzle are found in various parts of the industry. This paper presents the development of a new design methodology for a variable area convergent-divergent nozzle, to maintain constant nozzle area ratio for different values of mass flow rates. The validation of the presented model was carried out on an example supersonic ejector using experimental, numerical and analytical data. Analytical (one dimensional) and computational fluid dynamics models showed satisfactory prediction performance in comparison with the experiment. The average entrainment ratio error was between 10% and 7%, respectively. Results confirmed that the velocity of the primary fluid at the nozzle outlet is in accordance with the one dimensional analysis. Although disturbances (strong and weak shock waves) are visible, their effects are negligible. Also, supersonic ejector performances are presented through relations between entrainment ratio, outlet pressure and spindle position. Disadvantages of variable area nozzle utilization in ejector applications are emphasized.",
publisher = "Elsevier Science Inc, New York",
journal = "Applied Mathematical Modelling",
title = "Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods",
pages = "225-206",
volume = "57",
doi = "10.1016/j.apm.2018.01.016"
}

Petrović, A., Svorcan, J., Pejčev, A., Radenković, D.,& Petrović, A.. (2018). Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods. in Applied Mathematical Modelling
Elsevier Science Inc, New York., 57, 206-225.
https://doi.org/10.1016/j.apm.2018.01.016

Petrović A, Svorcan J, Pejčev A, Radenković D, Petrović A. Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods. in Applied Mathematical Modelling. 2018;57:206-225.
doi:10.1016/j.apm.2018.01.016 .

Petrović, Andrija, Svorcan, Jelena, Pejčev, Aleksandar, Radenković, Darko, Petrović, Aleksandar, "Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods" in Applied Mathematical Modelling, 57 (2018):206-225,
https://doi.org/10.1016/j.apm.2018.01.016 . .