TY  - CONF
AU  - Telebak, Katarina
AU  - Ćosović, Ermina
AU  - Tanović, Dragoljub
AU  - Stojanović, Jagoš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7868
AB  - Water treatment is the process of raising water quality so that it can be used for drinking, industrial activities, irrigation, and other uses. There are several physical, chemical, and biological procedures used to remove contaminants from water. This paper examines cutting-edge techniques for recycling wastewater in commercial buildings to reduce water usage. Industrial facilities face challenges in managing water resources sustainably and minimizing their negative environmental impact due to the growing global demand for water and the implementation of more stringent environmental standards. Various wastewater recycling methods are analyzed, such as biological treatments, membrane processes, advanced oxidation techniques, and the incorporation of renewable energy sources. The effectiveness, long-term viability, and environmental impacts of diverse recycling techniques are investigated by examining case studies from various industrial sectors. The research findings highlight the benefits and drawbacks of each approach, providing best practices and ways to implement them in industrial facilities. This paper aims to show improvements in industrial water treatment procedures to accomplish the objectives of sustainable development and water resource protection.
PB  - University of Belgrade - Faculty of Mechanical Engineering, Belgrade, Serbia
C3  - International Conference of Experimental and Numerical Investigations and New Technologies, 2024
T1  - ENHANCING INDUSTRIAL WATER MANAGEMENT: INNOVATIONS IN WASTEWATER RECYCLING
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7868
ER  - 

@conference{
author = "Telebak, Katarina and Ćosović, Ermina and Tanović, Dragoljub and Stojanović, Jagoš",
year = "2024",
abstract = "Water treatment is the process of raising water quality so that it can be used for drinking, industrial activities, irrigation, and other uses. There are several physical, chemical, and biological procedures used to remove contaminants from water. This paper examines cutting-edge techniques for recycling wastewater in commercial buildings to reduce water usage. Industrial facilities face challenges in managing water resources sustainably and minimizing their negative environmental impact due to the growing global demand for water and the implementation of more stringent environmental standards. Various wastewater recycling methods are analyzed, such as biological treatments, membrane processes, advanced oxidation techniques, and the incorporation of renewable energy sources. The effectiveness, long-term viability, and environmental impacts of diverse recycling techniques are investigated by examining case studies from various industrial sectors. The research findings highlight the benefits and drawbacks of each approach, providing best practices and ways to implement them in industrial facilities. This paper aims to show improvements in industrial water treatment procedures to accomplish the objectives of sustainable development and water resource protection.",
publisher = "University of Belgrade - Faculty of Mechanical Engineering, Belgrade, Serbia",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies, 2024",
title = "ENHANCING INDUSTRIAL WATER MANAGEMENT: INNOVATIONS IN WASTEWATER RECYCLING",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7868"
}

Telebak, K., Ćosović, E., Tanović, D.,& Stojanović, J.. (2024). ENHANCING INDUSTRIAL WATER MANAGEMENT: INNOVATIONS IN WASTEWATER RECYCLING. in International Conference of Experimental and Numerical Investigations and New Technologies, 2024
University of Belgrade - Faculty of Mechanical Engineering, Belgrade, Serbia..
https://hdl.handle.net/21.15107/rcub_machinery_7868

Telebak K, Ćosović E, Tanović D, Stojanović J. ENHANCING INDUSTRIAL WATER MANAGEMENT: INNOVATIONS IN WASTEWATER RECYCLING. in International Conference of Experimental and Numerical Investigations and New Technologies, 2024. 2024;.
https://hdl.handle.net/21.15107/rcub_machinery_7868 .

Telebak, Katarina, Ćosović, Ermina, Tanović, Dragoljub, Stojanović, Jagoš, "ENHANCING INDUSTRIAL WATER MANAGEMENT: INNOVATIONS IN WASTEWATER RECYCLING" in International Conference of Experimental and Numerical Investigations and New Technologies, 2024 (2024),
https://hdl.handle.net/21.15107/rcub_machinery_7868 .

TY  - JOUR
AU  - Kyrylovych, Valerii
AU  - Tanović, Dragoljub
AU  - Melnychuk, Dmytro
AU  - Mohelnytska, Liudmyla
AU  - Melnychuk, Petro
AU  - Yanovsky, Valery
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7857
AB  - The task of selecting robotic mechanic assembly technologies (RMAT) is considered as a multi-criteria optimization task, which in this formulation is solved on the set of previously obtained solutions regarding the selection of RMAT. The purpose of the paper is to increase the efficiency of technological preparation of robotic mechanical assembly production of machine and instrument engineering due to a new approach to the selection of RMAT using Pareto optimization and the peculiarities of the selection task formulation. The novelty consists in the further development of a science-based approach to solving multi-criteria selection task, based on the first proposed formalisms of the specified process, which reflect the peculiarities of the selection task formulation, its meaningful essence and the content of the Pareto optimization method. The practical value of the research lies in the proposed engineering- acceptable approach to solving applied multi-criteria selection tasks on the example of RMAT selection, which is invariant to the statement of the selection task, the dimension of the task, and its meaningful essence. The methods of discrete optimization, fuzzy multi-criteria selection of alternatives, and the Pareto optimization method were used for the research. The main results of this work consist of the development of formalisms and the demonstration of the efficiency of the proposed approach for the applied task of RMAT selection. The peculiarity of the developed approach is the combination of Pareto optimization, performed on a discrete set of local criteria. Directions for further research are presented.
PB  - Scientific Research Publishing Inc.
T2  - Applied Mathematics
T1  - Pareto Optimization as the Basic for Selecting Robotic Mechanic Assembly Technologies
EP  - 439
SP  - 421
DO  - 10.4236/am.2024.156025
ER  - 

@article{
author = "Kyrylovych, Valerii and Tanović, Dragoljub and Melnychuk, Dmytro and Mohelnytska, Liudmyla and Melnychuk, Petro and Yanovsky, Valery",
year = "2024",
abstract = "The task of selecting robotic mechanic assembly technologies (RMAT) is considered as a multi-criteria optimization task, which in this formulation is solved on the set of previously obtained solutions regarding the selection of RMAT. The purpose of the paper is to increase the efficiency of technological preparation of robotic mechanical assembly production of machine and instrument engineering due to a new approach to the selection of RMAT using Pareto optimization and the peculiarities of the selection task formulation. The novelty consists in the further development of a science-based approach to solving multi-criteria selection task, based on the first proposed formalisms of the specified process, which reflect the peculiarities of the selection task formulation, its meaningful essence and the content of the Pareto optimization method. The practical value of the research lies in the proposed engineering- acceptable approach to solving applied multi-criteria selection tasks on the example of RMAT selection, which is invariant to the statement of the selection task, the dimension of the task, and its meaningful essence. The methods of discrete optimization, fuzzy multi-criteria selection of alternatives, and the Pareto optimization method were used for the research. The main results of this work consist of the development of formalisms and the demonstration of the efficiency of the proposed approach for the applied task of RMAT selection. The peculiarity of the developed approach is the combination of Pareto optimization, performed on a discrete set of local criteria. Directions for further research are presented.",
publisher = "Scientific Research Publishing Inc.",
journal = "Applied Mathematics",
title = "Pareto Optimization as the Basic for Selecting Robotic Mechanic Assembly Technologies",
pages = "439-421",
doi = "10.4236/am.2024.156025"
}

Kyrylovych, V., Tanović, D., Melnychuk, D., Mohelnytska, L., Melnychuk, P.,& Yanovsky, V.. (2024). Pareto Optimization as the Basic for Selecting Robotic Mechanic Assembly Technologies. in Applied Mathematics
Scientific Research Publishing Inc.., 421-439.
https://doi.org/10.4236/am.2024.156025

Kyrylovych V, Tanović D, Melnychuk D, Mohelnytska L, Melnychuk P, Yanovsky V. Pareto Optimization as the Basic for Selecting Robotic Mechanic Assembly Technologies. in Applied Mathematics. 2024;:421-439.
doi:10.4236/am.2024.156025 .

Kyrylovych, Valerii, Tanović, Dragoljub, Melnychuk, Dmytro, Mohelnytska, Liudmyla, Melnychuk, Petro, Yanovsky, Valery, "Pareto Optimization as the Basic for Selecting Robotic Mechanic Assembly Technologies" in Applied Mathematics (2024):421-439,
https://doi.org/10.4236/am.2024.156025 . .

TY  - JOUR
AU  - Kostić, Ivan
AU  - Simonović, Aleksandar
AU  - Kostić, Olivera
AU  - Ivković, Dušan
AU  - Tanović, Dragoljub
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7825
AB  - This paper presents the second stage of a tandem fixed-wing unmanned aerial vehicle
(UAV) aerodynamic development. In the initial stage, the UAV was optimized by analyzing its
characteristics only in symmetrical flight conditions. Posted requirements were that both wings
should produce relevant positive lift, the initial stall must occur on the front wing first, the center
of pressure should be close to the center of gravity, and longitudinal static stability should be in the
optimum range. Computational fluid dynamic (CFD) analyses were performed, where the applied
calculation model was derived from the authors’ previous successful projects. The eighth version
TW V8 has satisfied all longitudinal requirements. Lateral-directional CFD analyses of V8 showed
that the ratio of the lateral and directional stability at the nominal cruising regime was optimal, but
both lateral and directional static stabilities were too high. On further development versions, the
lower vertical tail was eliminated, a negative dihedral was implemented on the front wing, and
four inverted blended winglets were added. Version TW V14 has largely improved lateral and
directional stability characteristics, while their optimum ratio at the cruising regime was preserved.
Longitudinal characteristics were also well preserved. Maximum lift coefficient and lift-to-drag ratio
were increased, compared to the V8.
PB  - MDPI
T2  - Aerospace
T1  - Lateral-Directional Aerodynamic Optimization of a Tandem Wing UAV Using CFD Analyses
IS  - 3
SP  - 223
VL  - 11
DO  - 10.3390/aerospace11030223
ER  - 

@article{
author = "Kostić, Ivan and Simonović, Aleksandar and Kostić, Olivera and Ivković, Dušan and Tanović, Dragoljub",
year = "2024",
abstract = "This paper presents the second stage of a tandem fixed-wing unmanned aerial vehicle
(UAV) aerodynamic development. In the initial stage, the UAV was optimized by analyzing its
characteristics only in symmetrical flight conditions. Posted requirements were that both wings
should produce relevant positive lift, the initial stall must occur on the front wing first, the center
of pressure should be close to the center of gravity, and longitudinal static stability should be in the
optimum range. Computational fluid dynamic (CFD) analyses were performed, where the applied
calculation model was derived from the authors’ previous successful projects. The eighth version
TW V8 has satisfied all longitudinal requirements. Lateral-directional CFD analyses of V8 showed
that the ratio of the lateral and directional stability at the nominal cruising regime was optimal, but
both lateral and directional static stabilities were too high. On further development versions, the
lower vertical tail was eliminated, a negative dihedral was implemented on the front wing, and
four inverted blended winglets were added. Version TW V14 has largely improved lateral and
directional stability characteristics, while their optimum ratio at the cruising regime was preserved.
Longitudinal characteristics were also well preserved. Maximum lift coefficient and lift-to-drag ratio
were increased, compared to the V8.",
publisher = "MDPI",
journal = "Aerospace",
title = "Lateral-Directional Aerodynamic Optimization of a Tandem Wing UAV Using CFD Analyses",
number = "3",
pages = "223",
volume = "11",
doi = "10.3390/aerospace11030223"
}

Kostić, I., Simonović, A., Kostić, O., Ivković, D.,& Tanović, D.. (2024). Lateral-Directional Aerodynamic Optimization of a Tandem Wing UAV Using CFD Analyses. in Aerospace
MDPI., 11(3), 223.
https://doi.org/10.3390/aerospace11030223

Kostić I, Simonović A, Kostić O, Ivković D, Tanović D. Lateral-Directional Aerodynamic Optimization of a Tandem Wing UAV Using CFD Analyses. in Aerospace. 2024;11(3):223.
doi:10.3390/aerospace11030223 .

Kostić, Ivan, Simonović, Aleksandar, Kostić, Olivera, Ivković, Dušan, Tanović, Dragoljub, "Lateral-Directional Aerodynamic Optimization of a Tandem Wing UAV Using CFD Analyses" in Aerospace, 11, no. 3 (2024):223,
https://doi.org/10.3390/aerospace11030223 . .

TY  - JOUR
AU  - Baltić, Marija
AU  - Vorkapić, Miloš
AU  - Ivanović, Milica
AU  - Tanović, Dragoljub
AU  - Mladenović, Ivana
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7836
AB  - Composite materials and structures are widely used and applied in many industries owing to their advantages, such as satisfactory stiffness-to-mass ratio and corrosion resistance. However, during their operating life, responsible parts subject to complex loads may change and their properties might deteriorate. To ensure structural integrity it is necessary to monitor and regularly check the performance of composite structures. This paper investigates the change of frequency characteristics of two rectangular composite (carbon-epoxy) plates after inflicting structural damage. Following the necessary preparation of the structure's upper surfaces by white-and-black stochastic pattern, the responses (free vibratory movement) of structures to momentary excitation were recorded by an optical, contactless 3D digital image correlation (DIC) system that contains a set of ultrafast cameras. 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 reduction in values of natural frequencies is observed on the damaged structures. The performed experiments demonstrate the applicability of the DIC method in the structural health monitoring of composite parts.
PB  - Belgrade, Serbia : Balkan Scientific Centre
T2  - Tribology and Materials Journal
T1  - Modal analysis of composite plates: Digital image correlation method application
EP  - 67
SP  - 62
DO  - 10.46793/tribomat.2023.010
ER  - 

@article{
author = "Baltić, Marija and Vorkapić, Miloš and Ivanović, Milica and Tanović, Dragoljub and Mladenović, Ivana",
year = "2023",
abstract = "Composite materials and structures are widely used and applied in many industries owing to their advantages, such as satisfactory stiffness-to-mass ratio and corrosion resistance. However, during their operating life, responsible parts subject to complex loads may change and their properties might deteriorate. To ensure structural integrity it is necessary to monitor and regularly check the performance of composite structures. This paper investigates the change of frequency characteristics of two rectangular composite (carbon-epoxy) plates after inflicting structural damage. Following the necessary preparation of the structure's upper surfaces by white-and-black stochastic pattern, the responses (free vibratory movement) of structures to momentary excitation were recorded by an optical, contactless 3D digital image correlation (DIC) system that contains a set of ultrafast cameras. 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 reduction in values of natural frequencies is observed on the damaged structures. The performed experiments demonstrate the applicability of the DIC method in the structural health monitoring of composite parts.",
publisher = "Belgrade, Serbia : Balkan Scientific Centre",
journal = "Tribology and Materials Journal",
title = "Modal analysis of composite plates: Digital image correlation method application",
pages = "67-62",
doi = "10.46793/tribomat.2023.010"
}

Baltić, M., Vorkapić, M., Ivanović, M., Tanović, D.,& Mladenović, I.. (2023). Modal analysis of composite plates: Digital image correlation method application. in Tribology and Materials Journal
Belgrade, Serbia : Balkan Scientific Centre., 62-67.
https://doi.org/10.46793/tribomat.2023.010

Baltić M, Vorkapić M, Ivanović M, Tanović D, Mladenović I. Modal analysis of composite plates: Digital image correlation method application. in Tribology and Materials Journal. 2023;:62-67.
doi:10.46793/tribomat.2023.010 .

Baltić, Marija, Vorkapić, Miloš, Ivanović, Milica, Tanović, Dragoljub, Mladenović, Ivana, "Modal analysis of composite plates: Digital image correlation method application" in Tribology and Materials Journal (2023):62-67,
https://doi.org/10.46793/tribomat.2023.010 . .

TY  - CONF
AU  - Baltić, Marija
AU  - Vorkapić, Miloš
AU  - Simonović, Aleksandar
AU  - Ivanov, Toni
AU  - Tanović, Dragoljub
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7828
AB  - The utilization of biomaterials with mycelia as a stabilizing agent is gaining popularity in the fields of construction and architecture, offering a sustainable solution aligned with the principles of the circular economy. Interdisciplinary research involving biologists, technologists, and engineers is necessary to advance this field where science, art and design converge. These biomaterials contribute to energy reduction and cost-effectiveness, utilizing readily available and recyclable raw materials. Mycelium-based blocks have shown to be more affordable than traditional cement and gypsum blocks while significantly reducing CO2 emissions. The mycelium network, formed by hyphae, can be cultivated into a solid material, providing a defined technological process. This study focusses on performing 3-point bending testing on moulded specimens using additive technology PLA material, following the ASTM D1037 standard. After the growth of mycelium and the formation of the test tube-shaped structure, the samples are dried and characterized to enchance their mechanical characteristics.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - Program and the Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023
T1  - Assembling biomaterial specimens in a mould made of thermoplastic polymer: 3-point bending test
EP  - 28
SP  - 28
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7828
ER  - 

@conference{
author = "Baltić, Marija and Vorkapić, Miloš and Simonović, Aleksandar and Ivanov, Toni and Tanović, Dragoljub",
year = "2023",
abstract = "The utilization of biomaterials with mycelia as a stabilizing agent is gaining popularity in the fields of construction and architecture, offering a sustainable solution aligned with the principles of the circular economy. Interdisciplinary research involving biologists, technologists, and engineers is necessary to advance this field where science, art and design converge. These biomaterials contribute to energy reduction and cost-effectiveness, utilizing readily available and recyclable raw materials. Mycelium-based blocks have shown to be more affordable than traditional cement and gypsum blocks while significantly reducing CO2 emissions. The mycelium network, formed by hyphae, can be cultivated into a solid material, providing a defined technological process. This study focusses on performing 3-point bending testing on moulded specimens using additive technology PLA material, following the ASTM D1037 standard. After the growth of mycelium and the formation of the test tube-shaped structure, the samples are dried and characterized to enchance their mechanical characteristics.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "Program and the Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023",
title = "Assembling biomaterial specimens in a mould made of thermoplastic polymer: 3-point bending test",
pages = "28-28",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7828"
}

Baltić, M., Vorkapić, M., Simonović, A., Ivanov, T.,& Tanović, D.. (2023). Assembling biomaterial specimens in a mould made of thermoplastic polymer: 3-point bending test. in Program and the Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 28-28.
https://hdl.handle.net/21.15107/rcub_machinery_7828

Baltić M, Vorkapić M, Simonović A, Ivanov T, Tanović D. Assembling biomaterial specimens in a mould made of thermoplastic polymer: 3-point bending test. in Program and the Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023. 2023;:28-28.
https://hdl.handle.net/21.15107/rcub_machinery_7828 .

Baltić, Marija, Vorkapić, Miloš, Simonović, Aleksandar, Ivanov, Toni, Tanović, Dragoljub, "Assembling biomaterial specimens in a mould made of thermoplastic polymer: 3-point bending test" in Program and the Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023 (2023):28-28,
https://hdl.handle.net/21.15107/rcub_machinery_7828 .

TY  - CONF
AU  - Telebak, Katarina
AU  - Tanović, Dragoljub
AU  - Trajković, Isaak
AU  - Jokić, Nikola
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7827
AB  - The realistic alternative to conventional subtractive manufacturing techniques is additive manufacturing (AM). It is a rapidly developing technology that makes it possible to produce sophisticated 3D parts with unique designs at low cost and with minimal environmental impact. By creating new opportunities to make cutting-edge ceramic components, additive manufacturing (AM) has the potential to revolutionize the ceramic industry. Because there is no longer a need for pricey tooling, production costs and lead times are reduced, and design freedom is increased. There is high expectation that, if these obstacles are solved, AM technologies will have a significant impact on the manufacturing of industrial ceramic components. These issues include those related to processing ceramic materials using AM technology, such as complex feedstock and sintering requirements. One of the many sectors where this technology is revolutionary is the production of ceramic materials. There are several applications for ceramic materials created via additive manufacturing. Ceramic materials are used in the energy sector due to their excellent chemical and heat resistance. Ceramic additive manufacturing enables the production of high-quality, wear-resistant equipment. These are just a few applications for ceramic materials created using additive printing. Complex geometries are difficult or impossible to build using traditional production methods, but this technology offers flexibility and the ability to do so. The numerical analysis of the flexural and tensile behaviour of a ceramic specimen created via additive manufacturing is the main topic of this study.
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023
T1  - Application of ceramic materials obtained by additive manufacturing
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7827
ER  - 

@conference{
author = "Telebak, Katarina and Tanović, Dragoljub and Trajković, Isaak and Jokić, Nikola",
year = "2023",
abstract = "The realistic alternative to conventional subtractive manufacturing techniques is additive manufacturing (AM). It is a rapidly developing technology that makes it possible to produce sophisticated 3D parts with unique designs at low cost and with minimal environmental impact. By creating new opportunities to make cutting-edge ceramic components, additive manufacturing (AM) has the potential to revolutionize the ceramic industry. Because there is no longer a need for pricey tooling, production costs and lead times are reduced, and design freedom is increased. There is high expectation that, if these obstacles are solved, AM technologies will have a significant impact on the manufacturing of industrial ceramic components. These issues include those related to processing ceramic materials using AM technology, such as complex feedstock and sintering requirements. One of the many sectors where this technology is revolutionary is the production of ceramic materials. There are several applications for ceramic materials created via additive manufacturing. Ceramic materials are used in the energy sector due to their excellent chemical and heat resistance. Ceramic additive manufacturing enables the production of high-quality, wear-resistant equipment. These are just a few applications for ceramic materials created using additive printing. Complex geometries are difficult or impossible to build using traditional production methods, but this technology offers flexibility and the ability to do so. The numerical analysis of the flexural and tensile behaviour of a ceramic specimen created via additive manufacturing is the main topic of this study.",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023",
title = "Application of ceramic materials obtained by additive manufacturing",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7827"
}

Telebak, K., Tanović, D., Trajković, I.,& Jokić, N.. (2023). Application of ceramic materials obtained by additive manufacturing. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023.
https://hdl.handle.net/21.15107/rcub_machinery_7827

Telebak K, Tanović D, Trajković I, Jokić N. Application of ceramic materials obtained by additive manufacturing. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7827 .

Telebak, Katarina, Tanović, Dragoljub, Trajković, Isaak, Jokić, Nikola, "Application of ceramic materials obtained by additive manufacturing" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023 (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7827 .

TY  - CONF
AU  - Tanović, Dragoljub
AU  - Vorkapić, Miloš
AU  - Telebak, Katarina
AU  - Stojanović, Jagoš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7749
AB  - The rising cost of fossil fuels has prompted a shift towards environmentally friendly alternative energy sources, leading to an expansion in the study of renewables. Wind turbines, specially those of the small-scale variety, have emerged as a promising solution for generating sustainable electricity, particularly in rural areas and for smaller consumers. This study focuses on the analysis of pitch angles for three-bladed horizontal axis wind turbines (HAWT) with a diameter of 1.35 m, classified as micro wind turbines. The analysis assumes incompressible and viscous flow, with shear stress transport (SST) equations closed by various turbulence models. The ANSYS program was used for conducting this analysis.
C3  - International Conference of Experimental and Numerical Investigations and New Technologies
T1  - EFFECT OF PITCH ANGLE ON WIND TURBINE  PERFORMANCES
IS  - 68
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7749
ER  - 

@conference{
author = "Tanović, Dragoljub and Vorkapić, Miloš and Telebak, Katarina and Stojanović, Jagoš",
year = "2023",
abstract = "The rising cost of fossil fuels has prompted a shift towards environmentally friendly alternative energy sources, leading to an expansion in the study of renewables. Wind turbines, specially those of the small-scale variety, have emerged as a promising solution for generating sustainable electricity, particularly in rural areas and for smaller consumers. This study focuses on the analysis of pitch angles for three-bladed horizontal axis wind turbines (HAWT) with a diameter of 1.35 m, classified as micro wind turbines. The analysis assumes incompressible and viscous flow, with shear stress transport (SST) equations closed by various turbulence models. The ANSYS program was used for conducting this analysis.",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies",
title = "EFFECT OF PITCH ANGLE ON WIND TURBINE  PERFORMANCES",
number = "68",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7749"
}

Tanović, D., Vorkapić, M., Telebak, K.,& Stojanović, J.. (2023). EFFECT OF PITCH ANGLE ON WIND TURBINE  PERFORMANCES. in International Conference of Experimental and Numerical Investigations and New Technologies(68).
https://hdl.handle.net/21.15107/rcub_machinery_7749

Tanović D, Vorkapić M, Telebak K, Stojanović J. EFFECT OF PITCH ANGLE ON WIND TURBINE  PERFORMANCES. in International Conference of Experimental and Numerical Investigations and New Technologies. 2023;(68).
https://hdl.handle.net/21.15107/rcub_machinery_7749 .

Tanović, Dragoljub, Vorkapić, Miloš, Telebak, Katarina, Stojanović, Jagoš, "EFFECT OF PITCH ANGLE ON WIND TURBINE  PERFORMANCES" in International Conference of Experimental and Numerical Investigations and New Technologies, no. 68 (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7749 .

TY  - CONF
AU  - Baltić, Marija
AU  - Ivanović, Milica
AU  - Tanović, Dragoljub
AU  - Vorkapić, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7737
AB  - Biocomposite materials are a combination of two or more different biomaterials at the
macroscopic level, with competitive mechanical and insulation properties, relatively stable when
exposed to high temperatures and tailorable. In this paper, materials are with a vegetative part of
fungi (mycelium-mesh structure of hyphae) which are increasingly used to create biocomposites
with unique processing technology. The vegetative part of a fungus called mycelium, can serve as
a natural binder for products made of biocomposite and acts like a self-assembling adhesive by
digesting and adhering to the surface of specific organic matter. This paper presents the
development of mould technology to set the biocomposite structure and test its mechanical
characteristics. The primary purpose of the mould is to bring the loose natural material into a
solid preparation following the standards ASTM D7250 and ASTM D1037, which include testing
the technologically prepared and hardened sample for tensile and pressure. Development and
moulding of biocomposite are the technological processes of drying after sowing mycelium so a
variant of the mould with a perforated upper part was used to harden the samples thoroughly.
C3  - The Ninth International Congress of the Serbian Society of Mechanics, July 5-7, 2023, Vrnjačka Banja, Serbia
T1  - DEVELOPMENT AND MOULD TECHNOLOGY FOR TESTING OF BIOCOMPOSITE STRUCTURES (APPLICATION FOR THERMOINSULATED BIO PLATES)
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7737
ER  - 

@conference{
author = "Baltić, Marija and Ivanović, Milica and Tanović, Dragoljub and Vorkapić, Miloš",
year = "2023",
abstract = "Biocomposite materials are a combination of two or more different biomaterials at the
macroscopic level, with competitive mechanical and insulation properties, relatively stable when
exposed to high temperatures and tailorable. In this paper, materials are with a vegetative part of
fungi (mycelium-mesh structure of hyphae) which are increasingly used to create biocomposites
with unique processing technology. The vegetative part of a fungus called mycelium, can serve as
a natural binder for products made of biocomposite and acts like a self-assembling adhesive by
digesting and adhering to the surface of specific organic matter. This paper presents the
development of mould technology to set the biocomposite structure and test its mechanical
characteristics. The primary purpose of the mould is to bring the loose natural material into a
solid preparation following the standards ASTM D7250 and ASTM D1037, which include testing
the technologically prepared and hardened sample for tensile and pressure. Development and
moulding of biocomposite are the technological processes of drying after sowing mycelium so a
variant of the mould with a perforated upper part was used to harden the samples thoroughly.",
journal = "The Ninth International Congress of the Serbian Society of Mechanics, July 5-7, 2023, Vrnjačka Banja, Serbia",
title = "DEVELOPMENT AND MOULD TECHNOLOGY FOR TESTING OF BIOCOMPOSITE STRUCTURES (APPLICATION FOR THERMOINSULATED BIO PLATES)",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7737"
}

Baltić, M., Ivanović, M., Tanović, D.,& Vorkapić, M.. (2023). DEVELOPMENT AND MOULD TECHNOLOGY FOR TESTING OF BIOCOMPOSITE STRUCTURES (APPLICATION FOR THERMOINSULATED BIO PLATES). in The Ninth International Congress of the Serbian Society of Mechanics, July 5-7, 2023, Vrnjačka Banja, Serbia.
https://hdl.handle.net/21.15107/rcub_machinery_7737

Baltić M, Ivanović M, Tanović D, Vorkapić M. DEVELOPMENT AND MOULD TECHNOLOGY FOR TESTING OF BIOCOMPOSITE STRUCTURES (APPLICATION FOR THERMOINSULATED BIO PLATES). in The Ninth International Congress of the Serbian Society of Mechanics, July 5-7, 2023, Vrnjačka Banja, Serbia. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7737 .

Baltić, Marija, Ivanović, Milica, Tanović, Dragoljub, Vorkapić, Miloš, "DEVELOPMENT AND MOULD TECHNOLOGY FOR TESTING OF BIOCOMPOSITE STRUCTURES (APPLICATION FOR THERMOINSULATED BIO PLATES)" in The Ninth International Congress of the Serbian Society of Mechanics, July 5-7, 2023, Vrnjačka Banja, Serbia (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7737 .

TY  - JOUR
AU  - Kostić, Ivan
AU  - Tanović, Dragoljub
AU  - Kostić, Olivera
AU  - Abubaker, Ahmed Ali Irhayim
AU  - Simonović, Aleksandar
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7713
AB  - Purpose: Unmanned aerial vehicles (UAV) with remote and/or automated flight and mission controls have replaced airplanes with pilots in many important roles. This study aims to deal with computational fluid dynamics (CFD) analysis and development of the aerodynamic configuration of a multi-purpose UAV for low and medium altitudes. The main aerodynamic requirement was the application of the tandem wing (TW) concept, where both wings generate a positive lift and act as primary lifting devices. Design/methodology/approach: Initial design analyses of the UAV’s aerodynamic configuration were performed using ANSYS Fluent. In previous work in Fluent, the authors established a calculation model that has been verified by experiments and, with minor adjustments, could be applied for subsonic, transonic and supersonic flow analyses. Findings: The design evolved through eight development configurations, where the latest V8 satisfied all the posted longitudinal aerodynamic requirements. Both wings generate a substantial amount of positive lift, whereas the initial stall occurs first on the front wing, generating a natural nose-down stall recovery tendency. In the cruising flight regime, this configuration has the desired range of longitudinal static stability and its centre of pressure is in close proximity to the centre of gravity. Practical implications: The intermediate development version V8 with proper longitudinal aerodynamic characteristics presents a good starting point for future development steps that will involve the optimization of lateral-directional aerodynamics. Originality/value: Using contemporary CFD tools, a novel and original TW aerodynamic configuration have evolved within eight development stages, not being based on or derived from any existing designs.
PB  - Emerald Publishing
T2  - Aircraft Engineering and Aerospace Technology
T1  - Initial development of tandem wing UAV aerodynamic configuration
EP  - 441
IS  - 3
SP  - 431
VL  - 95
DO  - 10.1108/AEAT-06-2022-0149
ER  - 

@article{
author = "Kostić, Ivan and Tanović, Dragoljub and Kostić, Olivera and Abubaker, Ahmed Ali Irhayim and Simonović, Aleksandar",
year = "2023",
abstract = "Purpose: Unmanned aerial vehicles (UAV) with remote and/or automated flight and mission controls have replaced airplanes with pilots in many important roles. This study aims to deal with computational fluid dynamics (CFD) analysis and development of the aerodynamic configuration of a multi-purpose UAV for low and medium altitudes. The main aerodynamic requirement was the application of the tandem wing (TW) concept, where both wings generate a positive lift and act as primary lifting devices. Design/methodology/approach: Initial design analyses of the UAV’s aerodynamic configuration were performed using ANSYS Fluent. In previous work in Fluent, the authors established a calculation model that has been verified by experiments and, with minor adjustments, could be applied for subsonic, transonic and supersonic flow analyses. Findings: The design evolved through eight development configurations, where the latest V8 satisfied all the posted longitudinal aerodynamic requirements. Both wings generate a substantial amount of positive lift, whereas the initial stall occurs first on the front wing, generating a natural nose-down stall recovery tendency. In the cruising flight regime, this configuration has the desired range of longitudinal static stability and its centre of pressure is in close proximity to the centre of gravity. Practical implications: The intermediate development version V8 with proper longitudinal aerodynamic characteristics presents a good starting point for future development steps that will involve the optimization of lateral-directional aerodynamics. Originality/value: Using contemporary CFD tools, a novel and original TW aerodynamic configuration have evolved within eight development stages, not being based on or derived from any existing designs.",
publisher = "Emerald Publishing",
journal = "Aircraft Engineering and Aerospace Technology",
title = "Initial development of tandem wing UAV aerodynamic configuration",
pages = "441-431",
number = "3",
volume = "95",
doi = "10.1108/AEAT-06-2022-0149"
}

Kostić, I., Tanović, D., Kostić, O., Abubaker, A. A. I.,& Simonović, A.. (2023). Initial development of tandem wing UAV aerodynamic configuration. in Aircraft Engineering and Aerospace Technology
Emerald Publishing., 95(3), 431-441.
https://doi.org/10.1108/AEAT-06-2022-0149

Kostić I, Tanović D, Kostić O, Abubaker AAI, Simonović A. Initial development of tandem wing UAV aerodynamic configuration. in Aircraft Engineering and Aerospace Technology. 2023;95(3):431-441.
doi:10.1108/AEAT-06-2022-0149 .

Kostić, Ivan, Tanović, Dragoljub, Kostić, Olivera, Abubaker, Ahmed Ali Irhayim, Simonović, Aleksandar, "Initial development of tandem wing UAV aerodynamic configuration" in Aircraft Engineering and Aerospace Technology, 95, no. 3 (2023):431-441,
https://doi.org/10.1108/AEAT-06-2022-0149 . .

TY  - CONF
AU  - Ivanović, Milica
AU  - Baltić, Marija
AU  - Tanović, Dragoljub
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7293
AB  - Heat exchangers used in the aerospace industry have inherent requirements for maximizing heat transfer efficiency, reducing weight and size, ensuring enhanced durability, and enabling customization for different aircraft types. 3D printing technology allows for the utilization of advanced materials such as high-temperature alloys and ceramics, which can withstand the extreme conditions of aerospace environments. Recent studies have highligheted the potential of 3D-printed heat exchangers in various aerospace industry, including spacecraft thermal management, electronics cooling and aircraft engine cooling.
Heat exchangers modeled on the basis of TPMS (Triple Periodic Minimal Surface) structures exhibit high surface area-to-volume ratios and interconnected pore structures, resulting in significant enhancement in heat
transfer rates. TPMS has been extensively researched in mathematics and materials science for several decades, with classical examples like the Schwartz surface, Gyroid surface and Diamond surface mainly studied for designing small-scale heat exchangers. Numerous studies have demonstrated improved heat transfer efficiency, structural stability and durability of 3D-printed heat exchangers. However, the design of TPMS structures using existing CAD systems poses challenges and further improvements are needed in modeling process.
Overall, the combination of 3D printing technology and geometry optimization represents the state-of-the-art in heat exchanger research, holding significant potential to transform existing systems and drive the development of innovative and more efficient energy systems in the aerospace industry.
C3  - International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023
T1  - Towards innovative and more efficient solutions for heat exchangers in aerospace industry
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7293
ER  - 

@conference{
author = "Ivanović, Milica and Baltić, Marija and Tanović, Dragoljub",
year = "2023",
abstract = "Heat exchangers used in the aerospace industry have inherent requirements for maximizing heat transfer efficiency, reducing weight and size, ensuring enhanced durability, and enabling customization for different aircraft types. 3D printing technology allows for the utilization of advanced materials such as high-temperature alloys and ceramics, which can withstand the extreme conditions of aerospace environments. Recent studies have highligheted the potential of 3D-printed heat exchangers in various aerospace industry, including spacecraft thermal management, electronics cooling and aircraft engine cooling.
Heat exchangers modeled on the basis of TPMS (Triple Periodic Minimal Surface) structures exhibit high surface area-to-volume ratios and interconnected pore structures, resulting in significant enhancement in heat
transfer rates. TPMS has been extensively researched in mathematics and materials science for several decades, with classical examples like the Schwartz surface, Gyroid surface and Diamond surface mainly studied for designing small-scale heat exchangers. Numerous studies have demonstrated improved heat transfer efficiency, structural stability and durability of 3D-printed heat exchangers. However, the design of TPMS structures using existing CAD systems poses challenges and further improvements are needed in modeling process.
Overall, the combination of 3D printing technology and geometry optimization represents the state-of-the-art in heat exchanger research, holding significant potential to transform existing systems and drive the development of innovative and more efficient energy systems in the aerospace industry.",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023",
title = "Towards innovative and more efficient solutions for heat exchangers in aerospace industry",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7293"
}

Ivanović, M., Baltić, M.,& Tanović, D.. (2023). Towards innovative and more efficient solutions for heat exchangers in aerospace industry. in International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023.
https://hdl.handle.net/21.15107/rcub_machinery_7293

Ivanović M, Baltić M, Tanović D. Towards innovative and more efficient solutions for heat exchangers in aerospace industry. in International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7293 .

Ivanović, Milica, Baltić, Marija, Tanović, Dragoljub, "Towards innovative and more efficient solutions for heat exchangers in aerospace industry" in International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023 (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7293 .

TY  - CONF
AU  - Baltić, Marija
AU  - Ivanović, Milica
AU  - Tanović, Dragoljub
AU  - Vorkapić, Miloš
AU  - Mladenović, Ivana
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7272
AB  - This paper presents the static testing of the composite material’s mechanical characteristics. An overview of the standards is made by which various tests are performed, and then an analysis of the results of the parameters obtained by the conventional method-stretching and optical (DIC system-bending) of carbon epoxy composite structures is given. These results represented the basis for the preparation and further application of biocomposite materials; that is, the testing procedure will be performed identically on composites containing mycelia. The mould for pressing biomaterial connected with mycelium is made of two parts. The primary purpose of the mould is to bring the loose natural material into a solid preparation following the standards ASTM D3039 and ASTM D7078, which include testing the technologically prepared and hardened sample for bending and shearing.
PB  - Springer, Cham
C3  - Novel Techniques in Maintenance, Repair, and Overhaul. ISATECH 2022. Sustainable Aviation. Springer, Cham.
T1  - Procedures in Testing the Mechanical Characteristics of Composite Structures and the Possibility of Application to Biodegradable Materials: An Overview
DO  - 10.1007/978-3-031-42041-2_31
ER  - 

@conference{
author = "Baltić, Marija and Ivanović, Milica and Tanović, Dragoljub and Vorkapić, Miloš and Mladenović, Ivana",
year = "2023",
abstract = "This paper presents the static testing of the composite material’s mechanical characteristics. An overview of the standards is made by which various tests are performed, and then an analysis of the results of the parameters obtained by the conventional method-stretching and optical (DIC system-bending) of carbon epoxy composite structures is given. These results represented the basis for the preparation and further application of biocomposite materials; that is, the testing procedure will be performed identically on composites containing mycelia. The mould for pressing biomaterial connected with mycelium is made of two parts. The primary purpose of the mould is to bring the loose natural material into a solid preparation following the standards ASTM D3039 and ASTM D7078, which include testing the technologically prepared and hardened sample for bending and shearing.",
publisher = "Springer, Cham",
journal = "Novel Techniques in Maintenance, Repair, and Overhaul. ISATECH 2022. Sustainable Aviation. Springer, Cham.",
title = "Procedures in Testing the Mechanical Characteristics of Composite Structures and the Possibility of Application to Biodegradable Materials: An Overview",
doi = "10.1007/978-3-031-42041-2_31"
}

Baltić, M., Ivanović, M., Tanović, D., Vorkapić, M.,& Mladenović, I.. (2023). Procedures in Testing the Mechanical Characteristics of Composite Structures and the Possibility of Application to Biodegradable Materials: An Overview. in Novel Techniques in Maintenance, Repair, and Overhaul. ISATECH 2022. Sustainable Aviation. Springer, Cham.
Springer, Cham..
https://doi.org/10.1007/978-3-031-42041-2_31

Baltić M, Ivanović M, Tanović D, Vorkapić M, Mladenović I. Procedures in Testing the Mechanical Characteristics of Composite Structures and the Possibility of Application to Biodegradable Materials: An Overview. in Novel Techniques in Maintenance, Repair, and Overhaul. ISATECH 2022. Sustainable Aviation. Springer, Cham.. 2023;.
doi:10.1007/978-3-031-42041-2_31 .

Baltić, Marija, Ivanović, Milica, Tanović, Dragoljub, Vorkapić, Miloš, Mladenović, Ivana, "Procedures in Testing the Mechanical Characteristics of Composite Structures and the Possibility of Application to Biodegradable Materials: An Overview" in Novel Techniques in Maintenance, Repair, and Overhaul. ISATECH 2022. Sustainable Aviation. Springer, Cham. (2023),
https://doi.org/10.1007/978-3-031-42041-2_31 . .

TY  - CONF
AU  - Tanović, Dragoljub 
AU  - Baltić, Marija
AU  - Vorkapić, Miloš
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7870
AB  - Angle-of-attack (AoA) of wings, blades and other geometric shapes has a dominant role in the generation of aerodynamic forces and turbine power since it changes the flow behavior. The development of software and computers has enabled simplified numerical testing, which reduces time while saving resources compared to experimental testing. Computational fluid dynamics (CFD) is a strong numerical tool that is being increasingly utilized to simulate a wide range of flow processes across many industries and is much employed in engineering design. One of the most common approaches is to use Reynolds-averaged Navier-Stokes (RANS) family of turbulence models where all effects of turbulence are modeled. For near-wall treatment, in aeronautics, the k-ω shear stress transport (SST) model is widely employed. In this paper, small horizontal axis wind turbine (model DE-AW01) blade at different AoAs has been numerically investigated. A detailed description of the blade geometry is also given. Numerical simulations of full three-dimensional flow fields using the k-ω SST turbulence model for the closure of the governing flow equations have been performed. The tests were performed at a high wind speed of 35 m/s (126 km/h) at AoAs of 85, 90 and 95 degrees which corresponds to extreme weather conditions. It has been confirmed that numerical simulations can provide sufficiently accurate estimates of the axial force and power. Furthermore, the obtained results were compared, primarily lift and drag, as the two most dominant components of aerodynamic forces, and the most convenient flow case, that minimizes blade loading, has been determined.
PB  - University of Belgrade - Faculty of Mechanical Engineering, Belgrade, Serbia
C3  - 1st International Conference on Mathematical Modelling in Mechanics and Engineering
T1  - ESTIMATION OF EXTREME LOADS ON A WIND TURBINE BLADE AT LARGE ANGLE-OF-ATTACK AND HIGH VELOCITY
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7870
ER  - 

@conference{
author = "Tanović, Dragoljub  and Baltić, Marija and Vorkapić, Miloš",
year = "2022",
abstract = "Angle-of-attack (AoA) of wings, blades and other geometric shapes has a dominant role in the generation of aerodynamic forces and turbine power since it changes the flow behavior. The development of software and computers has enabled simplified numerical testing, which reduces time while saving resources compared to experimental testing. Computational fluid dynamics (CFD) is a strong numerical tool that is being increasingly utilized to simulate a wide range of flow processes across many industries and is much employed in engineering design. One of the most common approaches is to use Reynolds-averaged Navier-Stokes (RANS) family of turbulence models where all effects of turbulence are modeled. For near-wall treatment, in aeronautics, the k-ω shear stress transport (SST) model is widely employed. In this paper, small horizontal axis wind turbine (model DE-AW01) blade at different AoAs has been numerically investigated. A detailed description of the blade geometry is also given. Numerical simulations of full three-dimensional flow fields using the k-ω SST turbulence model for the closure of the governing flow equations have been performed. The tests were performed at a high wind speed of 35 m/s (126 km/h) at AoAs of 85, 90 and 95 degrees which corresponds to extreme weather conditions. It has been confirmed that numerical simulations can provide sufficiently accurate estimates of the axial force and power. Furthermore, the obtained results were compared, primarily lift and drag, as the two most dominant components of aerodynamic forces, and the most convenient flow case, that minimizes blade loading, has been determined.",
publisher = "University of Belgrade - Faculty of Mechanical Engineering, Belgrade, Serbia",
journal = "1st International Conference on Mathematical Modelling in Mechanics and Engineering",
title = "ESTIMATION OF EXTREME LOADS ON A WIND TURBINE BLADE AT LARGE ANGLE-OF-ATTACK AND HIGH VELOCITY",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7870"
}

Tanović, D., Baltić, M.,& Vorkapić, M.. (2022). ESTIMATION OF EXTREME LOADS ON A WIND TURBINE BLADE AT LARGE ANGLE-OF-ATTACK AND HIGH VELOCITY. in 1st International Conference on Mathematical Modelling in Mechanics and Engineering
University of Belgrade - Faculty of Mechanical Engineering, Belgrade, Serbia..
https://hdl.handle.net/21.15107/rcub_machinery_7870

Tanović D, Baltić M, Vorkapić M. ESTIMATION OF EXTREME LOADS ON A WIND TURBINE BLADE AT LARGE ANGLE-OF-ATTACK AND HIGH VELOCITY. in 1st International Conference on Mathematical Modelling in Mechanics and Engineering. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7870 .

Tanović, Dragoljub , Baltić, Marija, Vorkapić, Miloš, "ESTIMATION OF EXTREME LOADS ON A WIND TURBINE BLADE AT LARGE ANGLE-OF-ATTACK AND HIGH VELOCITY" in 1st International Conference on Mathematical Modelling in Mechanics and Engineering (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7870 .

TY  - CONF
AU  - Kasalica, Vidoje
AU  - Telebak, Katarina
AU  - Tanović, Dragoljub
AU  - Kostić, Bogdan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7867
AB  - Robotic arms have become an integral part of almost every industrial field, with applications ranging from welding and assembly of various components to high-precision work. To achieve improvements in terms of positioning precision, less flexible materials are utilized in arms production, therefore increasing its overall rigidity. To enable small businesses to benefit from robots and automation, design optimization through analysis is very important. It also lowers the cost of production and lengthens its life cycle. The design and analysis of a human arm-like robotic arm under various load circumstances using Finite Element Analysis (FEA) simulation is the focus of this research. Throughout the creation of the robotic arm, a simple approach was used. SolidWorks is used to create a Computer-Aided Design (CAD) model of the robotic arm in this paper. The Finite Element Method (FEM) is a numerical approach for performing FEA on any physical phenomenon. The visualization software is an important part of finite element computer programs. A comprehensive FEM model transforms data into a visual representation that engineers may use to easily discover design flaws and, if necessary, construct a new production plan. FEM helps save material, time, and money by providing a clear view of the design, optimization, and failure analysis. In this work, the payload distribution of the arm is investigated and alternative materials are analysed and compared in terms of static force resistance. In this method, redundant weight is minimized while maintaining the same positioning precision.
PB  - Innovation Center of Faculty of Mechanical Engineering, Belgrade
C3  - International Conference of Experimental and Numerical Investigations and New Technologies, 2022
T1  - Analysis of the robotic arm with finite element method
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7867
ER  - 

@conference{
author = "Kasalica, Vidoje and Telebak, Katarina and Tanović, Dragoljub and Kostić, Bogdan",
year = "2022",
abstract = "Robotic arms have become an integral part of almost every industrial field, with applications ranging from welding and assembly of various components to high-precision work. To achieve improvements in terms of positioning precision, less flexible materials are utilized in arms production, therefore increasing its overall rigidity. To enable small businesses to benefit from robots and automation, design optimization through analysis is very important. It also lowers the cost of production and lengthens its life cycle. The design and analysis of a human arm-like robotic arm under various load circumstances using Finite Element Analysis (FEA) simulation is the focus of this research. Throughout the creation of the robotic arm, a simple approach was used. SolidWorks is used to create a Computer-Aided Design (CAD) model of the robotic arm in this paper. The Finite Element Method (FEM) is a numerical approach for performing FEA on any physical phenomenon. The visualization software is an important part of finite element computer programs. A comprehensive FEM model transforms data into a visual representation that engineers may use to easily discover design flaws and, if necessary, construct a new production plan. FEM helps save material, time, and money by providing a clear view of the design, optimization, and failure analysis. In this work, the payload distribution of the arm is investigated and alternative materials are analysed and compared in terms of static force resistance. In this method, redundant weight is minimized while maintaining the same positioning precision.",
publisher = "Innovation Center of Faculty of Mechanical Engineering, Belgrade",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies, 2022",
title = "Analysis of the robotic arm with finite element method",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7867"
}

Kasalica, V., Telebak, K., Tanović, D.,& Kostić, B.. (2022). Analysis of the robotic arm with finite element method. in International Conference of Experimental and Numerical Investigations and New Technologies, 2022
Innovation Center of Faculty of Mechanical Engineering, Belgrade..
https://hdl.handle.net/21.15107/rcub_machinery_7867

Kasalica V, Telebak K, Tanović D, Kostić B. Analysis of the robotic arm with finite element method. in International Conference of Experimental and Numerical Investigations and New Technologies, 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7867 .

Kasalica, Vidoje, Telebak, Katarina, Tanović, Dragoljub, Kostić, Bogdan, "Analysis of the robotic arm with finite element method" in International Conference of Experimental and Numerical Investigations and New Technologies, 2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7867 .

TY  - JOUR
AU  - Federovich, Salenko
AU  - Anatolуеvіch, Klymenko
AU  - Аleхandrovіch, Chumak
AU  - Alexandrovich, Elizarov
AU  - Tanović, Dragoljub
AU  - Petrovich, Melnychuk
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7837
AB  - The problems solved by the chemography method based on fixing oxidative reactions of ultra-low concentrations on the surface of solids are discussed. This method makes it possible to fix physical defects (microcracks, destruction, violations of structural homogeneity) and the energy (residual stresses) state of the surface layer of materials under operating conditions under the action of thermobaric loading. The change in these parameters is associated with the degradation of the cutting surfaces and, as a result, with a change in the rate of the reactions taking place. Applied chemography phenomena as a method of visualization of a destructive layer, a network of surface micro cracks in studying the processes of destruction materials, including nonmetallic ones, is shown. The main advantages of this method are the possibility of assessing the level of residual stresses and periodic visualization of surface defects due to the state of the studied materials, including nonmetallic ones. A relationship has been established between the presence of defects, the level of residual stresses, and the intensity of emerging photo molecular fluxes. In the applied aspect, the method makes it possible to evaluate the performance of cutting plates, and to study the formation and development of a network of microcracks by the intensity of the chemographic effect.
PB  - Belgrade : Faculty of Mechanical Engineering
T2  - FME Transactions
T1  - Application of Chemography Method to Study Surface Damage Phenomena
EP  - 490
SP  - 484
VL  - 50
DO  - 10.5937/fme2203484F
ER  - 

@article{
author = "Federovich, Salenko and Anatolуеvіch, Klymenko and Аleхandrovіch, Chumak and Alexandrovich, Elizarov and Tanović, Dragoljub and Petrovich, Melnychuk",
year = "2022",
abstract = "The problems solved by the chemography method based on fixing oxidative reactions of ultra-low concentrations on the surface of solids are discussed. This method makes it possible to fix physical defects (microcracks, destruction, violations of structural homogeneity) and the energy (residual stresses) state of the surface layer of materials under operating conditions under the action of thermobaric loading. The change in these parameters is associated with the degradation of the cutting surfaces and, as a result, with a change in the rate of the reactions taking place. Applied chemography phenomena as a method of visualization of a destructive layer, a network of surface micro cracks in studying the processes of destruction materials, including nonmetallic ones, is shown. The main advantages of this method are the possibility of assessing the level of residual stresses and periodic visualization of surface defects due to the state of the studied materials, including nonmetallic ones. A relationship has been established between the presence of defects, the level of residual stresses, and the intensity of emerging photo molecular fluxes. In the applied aspect, the method makes it possible to evaluate the performance of cutting plates, and to study the formation and development of a network of microcracks by the intensity of the chemographic effect.",
publisher = "Belgrade : Faculty of Mechanical Engineering",
journal = "FME Transactions",
title = "Application of Chemography Method to Study Surface Damage Phenomena",
pages = "490-484",
volume = "50",
doi = "10.5937/fme2203484F"
}

Federovich, S., Anatolуеvіch, K., Аleхandrovіch, C., Alexandrovich, E., Tanović, D.,& Petrovich, M.. (2022). Application of Chemography Method to Study Surface Damage Phenomena. in FME Transactions
Belgrade : Faculty of Mechanical Engineering., 50, 484-490.
https://doi.org/10.5937/fme2203484F

Federovich S, Anatolуеvіch K, Аleхandrovіch C, Alexandrovich E, Tanović D, Petrovich M. Application of Chemography Method to Study Surface Damage Phenomena. in FME Transactions. 2022;50:484-490.
doi:10.5937/fme2203484F .

Federovich, Salenko, Anatolуеvіch, Klymenko, Аleхandrovіch, Chumak, Alexandrovich, Elizarov, Tanović, Dragoljub, Petrovich, Melnychuk, "Application of Chemography Method to Study Surface Damage Phenomena" in FME Transactions, 50 (2022):484-490,
https://doi.org/10.5937/fme2203484F . .

TY  - JOUR
AU  - Kyrylovych, Valerii
AU  - Tanović, Dragoljub
AU  - Kryzanivska, Ilona
AU  - Melnychuk, Petro
AU  - Mohelnytska, Liudmyla
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7826
AB  - Theoretical and practical implementation of a new approach to the automated synthesis of optimal robotic trajectories of the stationary industrial robots (IR) clamping devices in the mechanical assembly of flexible manufacturing cells is presented. This approach is based on the principle of associations with respect to the set of reference points (RP) of IR trajectories with the interpretation of the Crystallization of Alternatives Field (CAF) concept. The trajectory RP are determined by the sets of the so-called linear and angular parameters of the service. These sets in the context of CAF are interpreted as alternatives that directly affect the value of the criteria of the synthesized trajectories. Briefly, the essence of the proposed approach is to implement the developed mathematical statement of the problem, which is formally represented by a semantic model in the form of an open oriented weighted graph. Its edges identify computational procedures that methodically streamline the implementation of the proposed approach, and the vertices are the intermediate and final results. For each synthesized and 3D-visualized trajectory, each of the criteria for its selection (speed, power consumption, energy consumption) is calculated. The final result of the developed associative approach functioning is its optimal trajectory according to the selected criterion. The obtained results are illustrated by an example that confirms the efficiency of the proposed approach. Illustrations and results of 3D-modelling of the synthesized optimal trajectory, done on the basis of the proposed approach, using the developed original Robix software, are presented.
T2  - Journal of the Brazilian Society of Mechanical Sciences and Engineering
T1  - Associative approach to automated synthesis of movement trajectories of industrial robots clamping devices using the method of crystallization of alternatives field
DO  - 10.1007/s40430-022-03434-w
ER  - 

@article{
author = "Kyrylovych, Valerii and Tanović, Dragoljub and Kryzanivska, Ilona and Melnychuk, Petro and Mohelnytska, Liudmyla",
year = "2022",
abstract = "Theoretical and practical implementation of a new approach to the automated synthesis of optimal robotic trajectories of the stationary industrial robots (IR) clamping devices in the mechanical assembly of flexible manufacturing cells is presented. This approach is based on the principle of associations with respect to the set of reference points (RP) of IR trajectories with the interpretation of the Crystallization of Alternatives Field (CAF) concept. The trajectory RP are determined by the sets of the so-called linear and angular parameters of the service. These sets in the context of CAF are interpreted as alternatives that directly affect the value of the criteria of the synthesized trajectories. Briefly, the essence of the proposed approach is to implement the developed mathematical statement of the problem, which is formally represented by a semantic model in the form of an open oriented weighted graph. Its edges identify computational procedures that methodically streamline the implementation of the proposed approach, and the vertices are the intermediate and final results. For each synthesized and 3D-visualized trajectory, each of the criteria for its selection (speed, power consumption, energy consumption) is calculated. The final result of the developed associative approach functioning is its optimal trajectory according to the selected criterion. The obtained results are illustrated by an example that confirms the efficiency of the proposed approach. Illustrations and results of 3D-modelling of the synthesized optimal trajectory, done on the basis of the proposed approach, using the developed original Robix software, are presented.",
journal = "Journal of the Brazilian Society of Mechanical Sciences and Engineering",
title = "Associative approach to automated synthesis of movement trajectories of industrial robots clamping devices using the method of crystallization of alternatives field",
doi = "10.1007/s40430-022-03434-w"
}

Kyrylovych, V., Tanović, D., Kryzanivska, I., Melnychuk, P.,& Mohelnytska, L.. (2022). Associative approach to automated synthesis of movement trajectories of industrial robots clamping devices using the method of crystallization of alternatives field. in Journal of the Brazilian Society of Mechanical Sciences and Engineering.
https://doi.org/10.1007/s40430-022-03434-w

Kyrylovych V, Tanović D, Kryzanivska I, Melnychuk P, Mohelnytska L. Associative approach to automated synthesis of movement trajectories of industrial robots clamping devices using the method of crystallization of alternatives field. in Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2022;.
doi:10.1007/s40430-022-03434-w .

Kyrylovych, Valerii, Tanović, Dragoljub, Kryzanivska, Ilona, Melnychuk, Petro, Mohelnytska, Liudmyla, "Associative approach to automated synthesis of movement trajectories of industrial robots clamping devices using the method of crystallization of alternatives field" in Journal of the Brazilian Society of Mechanical Sciences and Engineering (2022),
https://doi.org/10.1007/s40430-022-03434-w . .

TY  - CONF
AU  - Stojanović, Jagoš
AU  - Telebak, Katarina
AU  - Tanović, Dragoljub
AU  - Jokić, Nikola
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7748
AB  - The usage of parts with free form surfaces is growing day by day, not only in the field of mechanical engineering, but also in the production of parts for everyday household needs. This implies the need for developing of new methods for the production of such parts. When it comes to machining, the most common cases of production are milling with ball end mill on numerically controlled machine tools. In this paper are presented different methods for mathematical description of free-form surfaces such as Bézier curves, B-spline curves and non-uniform rational B-spline.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies
T1  - ANALYSIS OF METHODS FOR MATHEMATICAL  DESCRIPTION OF FORM SURFACES AS WELL AS  GENERATION OF 3D MODELS
IS  - 96
DO  - 978-86-6060-120-1
ER  - 

@conference{
author = "Stojanović, Jagoš and Telebak, Katarina and Tanović, Dragoljub and Jokić, Nikola",
year = "2022",
abstract = "The usage of parts with free form surfaces is growing day by day, not only in the field of mechanical engineering, but also in the production of parts for everyday household needs. This implies the need for developing of new methods for the production of such parts. When it comes to machining, the most common cases of production are milling with ball end mill on numerically controlled machine tools. In this paper are presented different methods for mathematical description of free-form surfaces such as Bézier curves, B-spline curves and non-uniform rational B-spline.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies",
title = "ANALYSIS OF METHODS FOR MATHEMATICAL  DESCRIPTION OF FORM SURFACES AS WELL AS  GENERATION OF 3D MODELS",
number = "96",
doi = "978-86-6060-120-1"
}

Stojanović, J., Telebak, K., Tanović, D.,& Jokić, N.. (2022). ANALYSIS OF METHODS FOR MATHEMATICAL  DESCRIPTION OF FORM SURFACES AS WELL AS  GENERATION OF 3D MODELS. in International Conference of Experimental and Numerical Investigations and New Technologies
Innovation Center of Faculty of Mechanical Engineering.(96).
https://doi.org/978-86-6060-120-1

Stojanović J, Telebak K, Tanović D, Jokić N. ANALYSIS OF METHODS FOR MATHEMATICAL  DESCRIPTION OF FORM SURFACES AS WELL AS  GENERATION OF 3D MODELS. in International Conference of Experimental and Numerical Investigations and New Technologies. 2022;(96).
doi:978-86-6060-120-1 .

Stojanović, Jagoš, Telebak, Katarina, Tanović, Dragoljub, Jokić, Nikola, "ANALYSIS OF METHODS FOR MATHEMATICAL  DESCRIPTION OF FORM SURFACES AS WELL AS  GENERATION OF 3D MODELS" in International Conference of Experimental and Numerical Investigations and New Technologies, no. 96 (2022),
https://doi.org/978-86-6060-120-1 . .

TY  - CONF
AU  - Tanović, Dragoljub
AU  - Svorcan, Jelena
AU  - Ivanović, Milica
AU  - Baltić, Marija
AU  - Vorkapić, Miloš
AU  - Telebak, Katarina
AU  - Stojanović, Jagoš
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7747
AB  - The wind speed is one of the major parameter influencing the design of the wind turbine, which varies widely over the different part of the country and globe. So, significant research is going on for the design of wind turbine for low, medium and high wind speed. Currently, many researchers have started designing small-scale horizontal axis wind turbines (HAWT) in world, to adapt their use to households. The advantage is reflected in the simple and affordable construction, uninterrupted operation and satisfactory power that wind turbines create. An airfoil is defined as the cross section of a body that is placed in an airstream in order to produce a useful aerodynamic force in the most efficient manner possible. The cross sections of wings, propeller blades, windmill blades, compressor and turbine blades in a jet engine, and hydrofoils are example of airfoils. A computational study has been conducted on various airfoils to simulate flows at different Reynolds numbers (Re) and wind speed to provide understanding and guidance for other low Reynolds-number designs. The numerical computational method used in this study is a boundary element method (BEM) which is implemented in software Qblade. It is an alternative deterministic method which incorporates a mesh that is only located on the boundaries of the domain and hence are attractive for free surface problems. The airfoils investigated in this study include NACA 4412, NACA 63-415 and S809. Performances such as power, power coefficient and tip speed ratio were compared.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies
T1  - THE INFLUENCE OF THE REYNOLDS NUMBER ON THE  AIRFOILS
SP  - 63
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7747
ER  - 

@conference{
author = "Tanović, Dragoljub and Svorcan, Jelena and Ivanović, Milica and Baltić, Marija and Vorkapić, Miloš and Telebak, Katarina and Stojanović, Jagoš",
year = "2022",
abstract = "The wind speed is one of the major parameter influencing the design of the wind turbine, which varies widely over the different part of the country and globe. So, significant research is going on for the design of wind turbine for low, medium and high wind speed. Currently, many researchers have started designing small-scale horizontal axis wind turbines (HAWT) in world, to adapt their use to households. The advantage is reflected in the simple and affordable construction, uninterrupted operation and satisfactory power that wind turbines create. An airfoil is defined as the cross section of a body that is placed in an airstream in order to produce a useful aerodynamic force in the most efficient manner possible. The cross sections of wings, propeller blades, windmill blades, compressor and turbine blades in a jet engine, and hydrofoils are example of airfoils. A computational study has been conducted on various airfoils to simulate flows at different Reynolds numbers (Re) and wind speed to provide understanding and guidance for other low Reynolds-number designs. The numerical computational method used in this study is a boundary element method (BEM) which is implemented in software Qblade. It is an alternative deterministic method which incorporates a mesh that is only located on the boundaries of the domain and hence are attractive for free surface problems. The airfoils investigated in this study include NACA 4412, NACA 63-415 and S809. Performances such as power, power coefficient and tip speed ratio were compared.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies",
title = "THE INFLUENCE OF THE REYNOLDS NUMBER ON THE  AIRFOILS",
pages = "63",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7747"
}

Tanović, D., Svorcan, J., Ivanović, M., Baltić, M., Vorkapić, M., Telebak, K.,& Stojanović, J.. (2022). THE INFLUENCE OF THE REYNOLDS NUMBER ON THE  AIRFOILS. in International Conference of Experimental and Numerical Investigations and New Technologies
Innovation Center of Faculty of Mechanical Engineering., 63.
https://hdl.handle.net/21.15107/rcub_machinery_7747

Tanović D, Svorcan J, Ivanović M, Baltić M, Vorkapić M, Telebak K, Stojanović J. THE INFLUENCE OF THE REYNOLDS NUMBER ON THE  AIRFOILS. in International Conference of Experimental and Numerical Investigations and New Technologies. 2022;:63.
https://hdl.handle.net/21.15107/rcub_machinery_7747 .

Tanović, Dragoljub, Svorcan, Jelena, Ivanović, Milica, Baltić, Marija, Vorkapić, Miloš, Telebak, Katarina, Stojanović, Jagoš, "THE INFLUENCE OF THE REYNOLDS NUMBER ON THE  AIRFOILS" in International Conference of Experimental and Numerical Investigations and New Technologies (2022):63,
https://hdl.handle.net/21.15107/rcub_machinery_7747 .

TY  - CONF
AU  - Svorcan, Jelena
AU  - Tanović, Dragoljub
AU  - Kovačević, Aleksandar
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4217
AB  - The growing climate change issues and the ongoing energy crisis stipulate
further exploitation of renewable energy sources and the development of systems
capable to efficiently generate clean energy. Among the most promising are wind
turbines, that come in different shapes and sizes. Small-scale wind turbines are
economic and particularly suitable for small consumers and rural areas. They are not
too common, and further research into their performance is necessary. This paper
focuses on the design and aerodynamic performance of a small horizontal-axis wind
turbine. Its rotor geometry is described while its basic aerodynamic coefficients, power
and thrust coefficients, are computed by finite volume method in ANSYS Fluent. Flow
is assumed as incompressible and viscous, while Reynolds-averaged Navier-Stokes
(RANS) equations are closed by different turbulence models. Wind turbine
aerodynamic performance is estimated, and different flow visualizations are provided,
particularly focusing on the wind turbine wake.
PB  - University of East Sarajevo, Faculty of Mechanical Engineering
C3  - 6th International Scientific Conference on Mechanical Engineering Technologies and Applications COMETa 2022
T1  - Computational aerodynamic analysis of a small wind turbine
EP  - 725
SP  - 719
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4217
ER  - 

@conference{
author = "Svorcan, Jelena and Tanović, Dragoljub and Kovačević, Aleksandar",
year = "2022",
abstract = "The growing climate change issues and the ongoing energy crisis stipulate
further exploitation of renewable energy sources and the development of systems
capable to efficiently generate clean energy. Among the most promising are wind
turbines, that come in different shapes and sizes. Small-scale wind turbines are
economic and particularly suitable for small consumers and rural areas. They are not
too common, and further research into their performance is necessary. This paper
focuses on the design and aerodynamic performance of a small horizontal-axis wind
turbine. Its rotor geometry is described while its basic aerodynamic coefficients, power
and thrust coefficients, are computed by finite volume method in ANSYS Fluent. Flow
is assumed as incompressible and viscous, while Reynolds-averaged Navier-Stokes
(RANS) equations are closed by different turbulence models. Wind turbine
aerodynamic performance is estimated, and different flow visualizations are provided,
particularly focusing on the wind turbine wake.",
publisher = "University of East Sarajevo, Faculty of Mechanical Engineering",
journal = "6th International Scientific Conference on Mechanical Engineering Technologies and Applications COMETa 2022",
title = "Computational aerodynamic analysis of a small wind turbine",
pages = "725-719",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4217"
}

Svorcan, J., Tanović, D.,& Kovačević, A.. (2022). Computational aerodynamic analysis of a small wind turbine. in 6th International Scientific Conference on Mechanical Engineering Technologies and Applications COMETa 2022
University of East Sarajevo, Faculty of Mechanical Engineering., 719-725.
https://hdl.handle.net/21.15107/rcub_machinery_4217

Svorcan J, Tanović D, Kovačević A. Computational aerodynamic analysis of a small wind turbine. in 6th International Scientific Conference on Mechanical Engineering Technologies and Applications COMETa 2022. 2022;:719-725.
https://hdl.handle.net/21.15107/rcub_machinery_4217 .

Svorcan, Jelena, Tanović, Dragoljub, Kovačević, Aleksandar, "Computational aerodynamic analysis of a small wind turbine" in 6th International Scientific Conference on Mechanical Engineering Technologies and Applications COMETa 2022 (2022):719-725,
https://hdl.handle.net/21.15107/rcub_machinery_4217 .

TY  - CONF
AU  - Tanović, Dragoljub
AU  - Simonović, Aleksandar
AU  - Peković, Ognjen
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7833
AB  - The rising concerns about global warming have increased interest in developing renewable and environmentally friendly energy sources such as wind, solar, etc. Wind energy can provide applicable solutions to the global climate changes. This energy is expected to take much more part in power generation in the coming years. Wind turbines are types of power plants that use renewable energy, wind, to generate electricity. A new type of wind turbine is beginning to be studied globally- airborne wind turbines. Airfoils, as cross-sectional shapes of blades, wings or sails, are used universally in geometrics such as turbines, aircraft, etc. One of the important subjects in fluid mechanics is studying the fluid flow around an airfoil. Using different numerical techniques, the conservation equations of two-dimensional compressible flow over NACA airfoils were solved in this paper. Three different turbulence models, 𝑘������−𝜔������ SST, the Spalarat Almaras and transition SST, were used for the closure of system of equations. Velocity and pressure fields obtained around these NACA airfoils were analysed, and their aerodynamic performances were compared. Program used in this paper is engineering simulation software- Ansys (Fluent).
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, 2021
T1  - NUMERICAL SIMULATION OF AIRFOILS FOR AIRBORNE WIND TURBINE
EP  - 64
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7833
ER  - 

@conference{
author = "Tanović, Dragoljub and Simonović, Aleksandar and Peković, Ognjen",
year = "2021",
abstract = "The rising concerns about global warming have increased interest in developing renewable and environmentally friendly energy sources such as wind, solar, etc. Wind energy can provide applicable solutions to the global climate changes. This energy is expected to take much more part in power generation in the coming years. Wind turbines are types of power plants that use renewable energy, wind, to generate electricity. A new type of wind turbine is beginning to be studied globally- airborne wind turbines. Airfoils, as cross-sectional shapes of blades, wings or sails, are used universally in geometrics such as turbines, aircraft, etc. One of the important subjects in fluid mechanics is studying the fluid flow around an airfoil. Using different numerical techniques, the conservation equations of two-dimensional compressible flow over NACA airfoils were solved in this paper. Three different turbulence models, 𝑘������−𝜔������ SST, the Spalarat Almaras and transition SST, were used for the closure of system of equations. Velocity and pressure fields obtained around these NACA airfoils were analysed, and their aerodynamic performances were compared. Program used in this paper is engineering simulation software- Ansys (Fluent).",
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, 2021",
title = "NUMERICAL SIMULATION OF AIRFOILS FOR AIRBORNE WIND TURBINE",
pages = "64-64",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7833"
}

Tanović, D., Simonović, A.,& Peković, O.. (2021). NUMERICAL SIMULATION OF AIRFOILS FOR AIRBORNE WIND TURBINE. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH, 2021
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 64-64.
https://hdl.handle.net/21.15107/rcub_machinery_7833

Tanović D, Simonović A, Peković O. NUMERICAL SIMULATION OF AIRFOILS FOR AIRBORNE WIND TURBINE. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH, 2021. 2021;:64-64.
https://hdl.handle.net/21.15107/rcub_machinery_7833 .

Tanović, Dragoljub, Simonović, Aleksandar, Peković, Ognjen, "NUMERICAL SIMULATION OF AIRFOILS FOR AIRBORNE WIND TURBINE" in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH, 2021 (2021):64-64,
https://hdl.handle.net/21.15107/rcub_machinery_7833 .

TY  - CONF
AU  - Ivanović, Milica
AU  - Tanović, Dragoljub
AU  - Kovačević, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7832
AB  - Carbon dioxide presents long-term solution in terms of sustainability and it is part of the vision for the future with ecological fluids in refrigeration technology, firstly taking in account that is natural, safe and economic refrigerant with great vaporizing latent heat and quite high volumetric refrigeration capacity. Investigation is based on the efficiency and consumpion of electrical energy analysis for system with two stage compression known as booster, system with parallel compression and multiejector system. Comparative analysis was for summer climatic conditions of Belgrade and for industrial system with 400 kW cooling capacity. Thermodynamic cycle with CO2 is specific because it has transfer from subcritical to transcritical above the low temperature of 31,1˚C, and under that condition, cycles with this fluid have large loses, especially during throttling. Results showed that bypass compression instead of bypass valve and using of multiejector (ME) device to recover expansion work, lead to energy savings of 10,3% for parallel compression system and 20,6% for system with ME, comparing to taken, referent, booster system, with note that systems majority of time worked under subcritical conditions (up to eight times).
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, 2021
T1  - COMPARATIVE ANALYSIS OF THE THREE SYSTEMS WITH CARBON-DIOXIDE AS A WORKING FLUID FOR INDUSTRIAL REFRIGERATION
EP  - 67
SP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7832
ER  - 

@conference{
author = "Ivanović, Milica and Tanović, Dragoljub and Kovačević, Aleksandar",
year = "2021",
abstract = "Carbon dioxide presents long-term solution in terms of sustainability and it is part of the vision for the future with ecological fluids in refrigeration technology, firstly taking in account that is natural, safe and economic refrigerant with great vaporizing latent heat and quite high volumetric refrigeration capacity. Investigation is based on the efficiency and consumpion of electrical energy analysis for system with two stage compression known as booster, system with parallel compression and multiejector system. Comparative analysis was for summer climatic conditions of Belgrade and for industrial system with 400 kW cooling capacity. Thermodynamic cycle with CO2 is specific because it has transfer from subcritical to transcritical above the low temperature of 31,1˚C, and under that condition, cycles with this fluid have large loses, especially during throttling. Results showed that bypass compression instead of bypass valve and using of multiejector (ME) device to recover expansion work, lead to energy savings of 10,3% for parallel compression system and 20,6% for system with ME, comparing to taken, referent, booster system, with note that systems majority of time worked under subcritical conditions (up to eight times).",
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, 2021",
title = "COMPARATIVE ANALYSIS OF THE THREE SYSTEMS WITH CARBON-DIOXIDE AS A WORKING FLUID FOR INDUSTRIAL REFRIGERATION",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7832"
}

Ivanović, M., Tanović, D.,& Kovačević, A.. (2021). COMPARATIVE ANALYSIS OF THE THREE SYSTEMS WITH CARBON-DIOXIDE AS A WORKING FLUID FOR INDUSTRIAL REFRIGERATION. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH, 2021
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 67-67.
https://hdl.handle.net/21.15107/rcub_machinery_7832

Ivanović M, Tanović D, Kovačević A. COMPARATIVE ANALYSIS OF THE THREE SYSTEMS WITH CARBON-DIOXIDE AS A WORKING FLUID FOR INDUSTRIAL REFRIGERATION. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH, 2021. 2021;:67-67.
https://hdl.handle.net/21.15107/rcub_machinery_7832 .

Ivanović, Milica, Tanović, Dragoljub, Kovačević, Aleksandar, "COMPARATIVE ANALYSIS OF THE THREE SYSTEMS WITH CARBON-DIOXIDE AS A WORKING FLUID FOR INDUSTRIAL REFRIGERATION" in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH, 2021 (2021):67-67,
https://hdl.handle.net/21.15107/rcub_machinery_7832 .

TY  - CONF
AU  - Tanović, Dragoljub
AU  - Kovačević, Aleksandar
AU  - Vorkapić, Miloš
AU  - Vujović, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7829
AB  - U radu prikazan je algoritam koji omogućava primenu 3D štampe u projektovanju ili modifikaciji proizvoda. Aditivna proizvodnja , ili tehnologija 3D štampe, podrazumeva izradu proizvoda složene geometrije u relativno malim količinama. 3D štampa omogućuje realizaciju modela prema digitalnom prikazu, a njena primena je ogromna u različitim proizvodnim granama. Glavne prednosti 3D štampe su: ušteda energije, smanjenje otpada, smanjenje upotrebe većeg broja alata, kao i optimizacija dizajna. Tehnologija 3D štampe radi na principu dodavanja materijala u slojevima. Model se formira od slojeva rastopljenog materijala koji se odmah hladi i očvršćava. Polazni materijal za izradu modela je polilaktična kiselina (PLA). Na mehaničke karakteristike realizovanog modela od PLA utiču različite promenljive kao što su: prečnik brizgaljke, debljina definisanog sloja, procentualna vrednost ispune,geometrija ispune, veličina uzorka, brzina punjenja i temperatura proizvodnje. Cilj ovog rada je da se prikaže algoritam kao deo procedure i aktivnosti kontrole pri realizaciji različitih modela. Time se projektantu daje mogućnost da realizuje nov proizvod, ispravi greške na postojećem proizvodu i na kraju modifikuje proizvod prema zahterima krajnjih korisnika.
PB  - JUSK - Jedinstveno Udruženje Srbije za Kvalitet / Belgrade : UASQ - United Association of Serbia for Quality
C3  - JUSK ICQ - XVII Međunarodna konvencija o kvalitetu 2021
T1  - Algorithm for using 3D printing in designing or product modification
EP  - 101
SP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7829
ER  - 

@conference{
author = "Tanović, Dragoljub and Kovačević, Aleksandar and Vorkapić, Miloš and Vujović, Aleksandar",
year = "2021",
abstract = "U radu prikazan je algoritam koji omogućava primenu 3D štampe u projektovanju ili modifikaciji proizvoda. Aditivna proizvodnja , ili tehnologija 3D štampe, podrazumeva izradu proizvoda složene geometrije u relativno malim količinama. 3D štampa omogućuje realizaciju modela prema digitalnom prikazu, a njena primena je ogromna u različitim proizvodnim granama. Glavne prednosti 3D štampe su: ušteda energije, smanjenje otpada, smanjenje upotrebe većeg broja alata, kao i optimizacija dizajna. Tehnologija 3D štampe radi na principu dodavanja materijala u slojevima. Model se formira od slojeva rastopljenog materijala koji se odmah hladi i očvršćava. Polazni materijal za izradu modela je polilaktična kiselina (PLA). Na mehaničke karakteristike realizovanog modela od PLA utiču različite promenljive kao što su: prečnik brizgaljke, debljina definisanog sloja, procentualna vrednost ispune,geometrija ispune, veličina uzorka, brzina punjenja i temperatura proizvodnje. Cilj ovog rada je da se prikaže algoritam kao deo procedure i aktivnosti kontrole pri realizaciji različitih modela. Time se projektantu daje mogućnost da realizuje nov proizvod, ispravi greške na postojećem proizvodu i na kraju modifikuje proizvod prema zahterima krajnjih korisnika.",
publisher = "JUSK - Jedinstveno Udruženje Srbije za Kvalitet / Belgrade : UASQ - United Association of Serbia for Quality",
journal = "JUSK ICQ - XVII Međunarodna konvencija o kvalitetu 2021",
title = "Algorithm for using 3D printing in designing or product modification",
pages = "101-94",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7829"
}

Tanović, D., Kovačević, A., Vorkapić, M.,& Vujović, A.. (2021). Algorithm for using 3D printing in designing or product modification. in JUSK ICQ - XVII Međunarodna konvencija o kvalitetu 2021
JUSK - Jedinstveno Udruženje Srbije za Kvalitet / Belgrade : UASQ - United Association of Serbia for Quality., 94-101.
https://hdl.handle.net/21.15107/rcub_machinery_7829

Tanović D, Kovačević A, Vorkapić M, Vujović A. Algorithm for using 3D printing in designing or product modification. in JUSK ICQ - XVII Međunarodna konvencija o kvalitetu 2021. 2021;:94-101.
https://hdl.handle.net/21.15107/rcub_machinery_7829 .

Tanović, Dragoljub, Kovačević, Aleksandar, Vorkapić, Miloš, Vujović, Aleksandar, "Algorithm for using 3D printing in designing or product modification" in JUSK ICQ - XVII Međunarodna konvencija o kvalitetu 2021 (2021):94-101,
https://hdl.handle.net/21.15107/rcub_machinery_7829 .

TY  - CONF
AU  - Ivanović, Milica
AU  - Simonović, Aleksandar
AU  - Ivanov, Toni
AU  - Kovačević, Aleksandar
AU  - Tanović, Dragoljub
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6438
AB  - In the terms of cost reduction, design flexibility, time and environmentally friendly process, additive manufacturing is gaining acceptance as an innovative technology in the construction industry. The energy demand estimation, as one of the primary parts of building industry nowadays, imposed a need for constant development of the existing materials. Taking into consideration stresses in the material and thermal transmittance value, several mixes that have adequate consistency and workability are described. The common is concrete base consisting of cement, sand and additives. Other elements include geopolymers, fibers, soil, clay, gravel, sulfur. Considering standards and regulations for the maximum thermal transmittance value (U-value), in the countries of Eastern Europe specifically, all considered mixes had greater U-value. The various wall configuration with different cavities inside (empty or filled with sand) enables better thermal properties of the wall that can obtain U-value less than legislation prescribes.
C3  - International conference – East Europe conference on AM materials- EECAM21
T1  - A green building technique: thermal transmittance value of the different materials used in 3D printed houses
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6438
ER  - 

@conference{
author = "Ivanović, Milica and Simonović, Aleksandar and Ivanov, Toni and Kovačević, Aleksandar and Tanović, Dragoljub",
year = "2021",
abstract = "In the terms of cost reduction, design flexibility, time and environmentally friendly process, additive manufacturing is gaining acceptance as an innovative technology in the construction industry. The energy demand estimation, as one of the primary parts of building industry nowadays, imposed a need for constant development of the existing materials. Taking into consideration stresses in the material and thermal transmittance value, several mixes that have adequate consistency and workability are described. The common is concrete base consisting of cement, sand and additives. Other elements include geopolymers, fibers, soil, clay, gravel, sulfur. Considering standards and regulations for the maximum thermal transmittance value (U-value), in the countries of Eastern Europe specifically, all considered mixes had greater U-value. The various wall configuration with different cavities inside (empty or filled with sand) enables better thermal properties of the wall that can obtain U-value less than legislation prescribes.",
journal = "International conference – East Europe conference on AM materials- EECAM21",
title = "A green building technique: thermal transmittance value of the different materials used in 3D printed houses",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6438"
}

Ivanović, M., Simonović, A., Ivanov, T., Kovačević, A.,& Tanović, D.. (2021). A green building technique: thermal transmittance value of the different materials used in 3D printed houses. in International conference – East Europe conference on AM materials- EECAM21.
https://hdl.handle.net/21.15107/rcub_machinery_6438

Ivanović M, Simonović A, Ivanov T, Kovačević A, Tanović D. A green building technique: thermal transmittance value of the different materials used in 3D printed houses. in International conference – East Europe conference on AM materials- EECAM21. 2021;.
https://hdl.handle.net/21.15107/rcub_machinery_6438 .

Ivanović, Milica, Simonović, Aleksandar, Ivanov, Toni, Kovačević, Aleksandar, Tanović, Dragoljub, "A green building technique: thermal transmittance value of the different materials used in 3D printed houses" in International conference – East Europe conference on AM materials- EECAM21 (2021),
https://hdl.handle.net/21.15107/rcub_machinery_6438 .

TY  - CONF
AU  - Svorcan, Jelena
AU  - Hasan, Mohammad Sakib
AU  - Tanović, Dragoljub 
AU  - Popović, Lazar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4216
AB  - Investigated topic of the presented research is transitional and turbulent flow around smallscale
propeller blade airfoils that are characterized by small chords, low speeds and therefore, low
Reynolds numbers. Here, an airfoil of medium relative thickness designed for nominal operating
conditions of 0.3 MRe is considered. Prior studies by simpler computational models (including
panel methods and 2D CFD simulations) have demonstrated that best lift-to-drag ratio (that is the
desired working regime) ranging from 60 to 80 can be achieved at angles-of-attack 4-6°. Here,
that observation is checked by more advanced turbulence models that incorporate the resolution
of at least a portion of turbulence spectrum, in particular transition SST scale-adaptive simulation
(SAS). Such complex turbulence models require 3D models and quite refined computational
grids. Furthermore, the necessary computational effort is truly enormous due to small time-steps
and slow convergence. The conducted computational process is presented and explained. Various
obtained results, both quantitative and qualitative, are provided. In the end, it can be concluded
that the choice of turbulence modeling (and/or resolving) greatly affects the final output, even at
medium angles-of-attack where laminar, attached flow dominates. Distinctive flow phenomena
still exist, and in order to be adequately simulated, a comprehensive modeling approach should be
adopted.
PB  - Belgrade : Serbian Society of Mechanics
C3  - Proceedings / The 8th International Congress of Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021
T1  - Simulating transitional and turbulent flow around airfoils at medium angles-of-attack
EP  - 526
SP  - 519
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4216
ER  - 

@conference{
author = "Svorcan, Jelena and Hasan, Mohammad Sakib and Tanović, Dragoljub  and Popović, Lazar",
year = "2021",
abstract = "Investigated topic of the presented research is transitional and turbulent flow around smallscale
propeller blade airfoils that are characterized by small chords, low speeds and therefore, low
Reynolds numbers. Here, an airfoil of medium relative thickness designed for nominal operating
conditions of 0.3 MRe is considered. Prior studies by simpler computational models (including
panel methods and 2D CFD simulations) have demonstrated that best lift-to-drag ratio (that is the
desired working regime) ranging from 60 to 80 can be achieved at angles-of-attack 4-6°. Here,
that observation is checked by more advanced turbulence models that incorporate the resolution
of at least a portion of turbulence spectrum, in particular transition SST scale-adaptive simulation
(SAS). Such complex turbulence models require 3D models and quite refined computational
grids. Furthermore, the necessary computational effort is truly enormous due to small time-steps
and slow convergence. The conducted computational process is presented and explained. Various
obtained results, both quantitative and qualitative, are provided. In the end, it can be concluded
that the choice of turbulence modeling (and/or resolving) greatly affects the final output, even at
medium angles-of-attack where laminar, attached flow dominates. Distinctive flow phenomena
still exist, and in order to be adequately simulated, a comprehensive modeling approach should be
adopted.",
publisher = "Belgrade : Serbian Society of Mechanics",
journal = "Proceedings / The 8th International Congress of Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021",
title = "Simulating transitional and turbulent flow around airfoils at medium angles-of-attack",
pages = "526-519",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4216"
}

Svorcan, J., Hasan, M. S., Tanović, D.,& Popović, L.. (2021). Simulating transitional and turbulent flow around airfoils at medium angles-of-attack. in Proceedings / The 8th International Congress of Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021
Belgrade : Serbian Society of Mechanics., 519-526.
https://hdl.handle.net/21.15107/rcub_machinery_4216

Svorcan J, Hasan MS, Tanović D, Popović L. Simulating transitional and turbulent flow around airfoils at medium angles-of-attack. in Proceedings / The 8th International Congress of Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021. 2021;:519-526.
https://hdl.handle.net/21.15107/rcub_machinery_4216 .

Svorcan, Jelena, Hasan, Mohammad Sakib, Tanović, Dragoljub , Popović, Lazar, "Simulating transitional and turbulent flow around airfoils at medium angles-of-attack" in Proceedings / The 8th International Congress of Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021 (2021):519-526,
https://hdl.handle.net/21.15107/rcub_machinery_4216 .

TY  - CONF
AU  - Hasan, Mohammad Sakib
AU  - Svorcan, Jelena
AU  - Tanović, Dragoljub
AU  - Baş, G.
AU  - Durakbasa, Numan M.
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3683
AB  - High altitude platforms or Pseudo-satellites (HAPS) are unmanned aerial vehicles that can fly above 17 km from sea level. It can take advantage of weak stratospheric winds and solar energy to operate without interfering with current commercial aviation and with enough endurance to provide long-term services as satellites do. The technological innovations and the growing urgency to expand the availability of broadband led to the development of HAPS. Besides that, Earth observation, positioning, astronomy, and science are the main applications of High altitude platforms, or Pseudo-satellites (HAPS). In this paper, the conceptual design of the novel HAPS UAV based on the initial requirements regarding cruising height of 20 km, the cruising velocity of 25 m/s, and payload of 15 kg were performed and described. The HAPS wing was defined and aerodynamically studied in detail. The computed nominal load was used as input parameter for structural analysis of the wing’s inner structure comprising outer shell, main spars, and ribs made of composite and plastic materials. All computations were performed using commercial software package ANSYS. The obtained results are discussed and graphically presented by computed stress and deformation fields.
PB  - Springer Science and Business Media Deutschland GmbH
C3  - Lecture Notes in Mechanical Engineering
T1  - Conceptual Design and Fluid Structure Interaction Analysis of a Solar Powered High-Altitude Pseudo-Satellite (HAPS) UAV Wing Model
EP  - 105
SP  - 93
DO  - 10.1007/978-3-030-62784-3_8
ER  - 

@conference{
author = "Hasan, Mohammad Sakib and Svorcan, Jelena and Tanović, Dragoljub and Baş, G. and Durakbasa, Numan M.",
year = "2021",
abstract = "High altitude platforms or Pseudo-satellites (HAPS) are unmanned aerial vehicles that can fly above 17 km from sea level. It can take advantage of weak stratospheric winds and solar energy to operate without interfering with current commercial aviation and with enough endurance to provide long-term services as satellites do. The technological innovations and the growing urgency to expand the availability of broadband led to the development of HAPS. Besides that, Earth observation, positioning, astronomy, and science are the main applications of High altitude platforms, or Pseudo-satellites (HAPS). In this paper, the conceptual design of the novel HAPS UAV based on the initial requirements regarding cruising height of 20 km, the cruising velocity of 25 m/s, and payload of 15 kg were performed and described. The HAPS wing was defined and aerodynamically studied in detail. The computed nominal load was used as input parameter for structural analysis of the wing’s inner structure comprising outer shell, main spars, and ribs made of composite and plastic materials. All computations were performed using commercial software package ANSYS. The obtained results are discussed and graphically presented by computed stress and deformation fields.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Lecture Notes in Mechanical Engineering",
title = "Conceptual Design and Fluid Structure Interaction Analysis of a Solar Powered High-Altitude Pseudo-Satellite (HAPS) UAV Wing Model",
pages = "105-93",
doi = "10.1007/978-3-030-62784-3_8"
}

Hasan, M. S., Svorcan, J., Tanović, D., Baş, G.,& Durakbasa, N. M.. (2021). Conceptual Design and Fluid Structure Interaction Analysis of a Solar Powered High-Altitude Pseudo-Satellite (HAPS) UAV Wing Model. in Lecture Notes in Mechanical Engineering
Springer Science and Business Media Deutschland GmbH., 93-105.
https://doi.org/10.1007/978-3-030-62784-3_8

Hasan MS, Svorcan J, Tanović D, Baş G, Durakbasa NM. Conceptual Design and Fluid Structure Interaction Analysis of a Solar Powered High-Altitude Pseudo-Satellite (HAPS) UAV Wing Model. in Lecture Notes in Mechanical Engineering. 2021;:93-105.
doi:10.1007/978-3-030-62784-3_8 .

Hasan, Mohammad Sakib, Svorcan, Jelena, Tanović, Dragoljub, Baş, G., Durakbasa, Numan M., "Conceptual Design and Fluid Structure Interaction Analysis of a Solar Powered High-Altitude Pseudo-Satellite (HAPS) UAV Wing Model" in Lecture Notes in Mechanical Engineering (2021):93-105,
https://doi.org/10.1007/978-3-030-62784-3_8 . .

TY  - JOUR
AU  - Svorcan, Jelena
AU  - Kovačević, A.
AU  - Tanović, Dragoljub
AU  - Hasan, Mohammad Sakib
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3650
AB  - The paper focuses on the possibilities of adequately simulating complex flow fields that appear around small-scale propellers of multicopter aircraft. Such unmanned air vehicles (UAVs) are steadily gaining popularity for their diverse applications (surveillance, communication, deliveries, etc.) and the need for a viable (i.e. usable, satisfactory, practical) computational tool is also surging. From an engineering standpoint, it is important to obtain sufficiently accurate predictions of flow field variables in a reasonable amount of time so that the design process can be fast and efficient, in particular the subsequent structural and flight mechanics analyses. That is why more or less standard fluid flow models, e.g. Reynolds-averaged Navier—Stokes (RANS) equations solved by the finite volume method (FVM), are constantly being employed and validated. On the other hand, special attention must be given to various flow peculiarities occurring around the blade segments shaped like airfoils since these flows are characterized by small chords (length-scales), low speeds and, therefore, low Reynolds numbers (Re) and pronounced viscous effects. The investigated low-Re flows include both transitional and turbulent zones, laminar separation bubbles (LSBs), flow separation, as well as rotating wakes, which require somewhat specific approaches to flow modeling (advanced turbulence models, fine spatial and temporal scales, etc). Here, the conducted computations (around stationary blade segments as well as rotating rotors), closed by different turbulence models, are presented and explained. Various qualitative and quantitative results are provided, compared and discussed. The main possibilities and obstacles of each computational approach are mentioned. Where possible, numerical results are validated against experimental data. The correspondence between the two sets of results can be considered satisfactory (relative differences for the thrust coefficient amount to 15%, while they are even lower for the torque coefficient). It can be concluded that the choice of turbulence modeling (and/or resolving) greatly affects the final output, even in design operating conditions (at medium angles-of-attack where laminar, attached flow dominates). Distinctive flow phenomena still exist, and in order to be adequately simulated, a comprehensive modeling approach should be adopted.
PB  - Beograd : Srpsko društvo za mehaniku
T2  - Theoretical and Applied Mechanics
T1  - Towards viable flow simulations of small-scale rotors and blade segments
EP  - 157
IS  - 2
SP  - 143
VL  - 48
DO  - 10.2298/TAM211011008S
ER  - 

@article{
author = "Svorcan, Jelena and Kovačević, A. and Tanović, Dragoljub and Hasan, Mohammad Sakib",
year = "2021",
abstract = "The paper focuses on the possibilities of adequately simulating complex flow fields that appear around small-scale propellers of multicopter aircraft. Such unmanned air vehicles (UAVs) are steadily gaining popularity for their diverse applications (surveillance, communication, deliveries, etc.) and the need for a viable (i.e. usable, satisfactory, practical) computational tool is also surging. From an engineering standpoint, it is important to obtain sufficiently accurate predictions of flow field variables in a reasonable amount of time so that the design process can be fast and efficient, in particular the subsequent structural and flight mechanics analyses. That is why more or less standard fluid flow models, e.g. Reynolds-averaged Navier—Stokes (RANS) equations solved by the finite volume method (FVM), are constantly being employed and validated. On the other hand, special attention must be given to various flow peculiarities occurring around the blade segments shaped like airfoils since these flows are characterized by small chords (length-scales), low speeds and, therefore, low Reynolds numbers (Re) and pronounced viscous effects. The investigated low-Re flows include both transitional and turbulent zones, laminar separation bubbles (LSBs), flow separation, as well as rotating wakes, which require somewhat specific approaches to flow modeling (advanced turbulence models, fine spatial and temporal scales, etc). Here, the conducted computations (around stationary blade segments as well as rotating rotors), closed by different turbulence models, are presented and explained. Various qualitative and quantitative results are provided, compared and discussed. The main possibilities and obstacles of each computational approach are mentioned. Where possible, numerical results are validated against experimental data. The correspondence between the two sets of results can be considered satisfactory (relative differences for the thrust coefficient amount to 15%, while they are even lower for the torque coefficient). It can be concluded that the choice of turbulence modeling (and/or resolving) greatly affects the final output, even in design operating conditions (at medium angles-of-attack where laminar, attached flow dominates). Distinctive flow phenomena still exist, and in order to be adequately simulated, a comprehensive modeling approach should be adopted.",
publisher = "Beograd : Srpsko društvo za mehaniku",
journal = "Theoretical and Applied Mechanics",
title = "Towards viable flow simulations of small-scale rotors and blade segments",
pages = "157-143",
number = "2",
volume = "48",
doi = "10.2298/TAM211011008S"
}

Svorcan, J., Kovačević, A., Tanović, D.,& Hasan, M. S.. (2021). Towards viable flow simulations of small-scale rotors and blade segments. in Theoretical and Applied Mechanics
Beograd : Srpsko društvo za mehaniku., 48(2), 143-157.
https://doi.org/10.2298/TAM211011008S

Svorcan J, Kovačević A, Tanović D, Hasan MS. Towards viable flow simulations of small-scale rotors and blade segments. in Theoretical and Applied Mechanics. 2021;48(2):143-157.
doi:10.2298/TAM211011008S .

Svorcan, Jelena, Kovačević, A., Tanović, Dragoljub, Hasan, Mohammad Sakib, "Towards viable flow simulations of small-scale rotors and blade segments" in Theoretical and Applied Mechanics, 48, no. 2 (2021):143-157,
https://doi.org/10.2298/TAM211011008S . .