TY  - PAT
AU  - Živanović, Saša
AU  - Vorkapić, Nikola
AU  - Slavković, Nikola
AU  - Dimić, Zoran
AU  - Vidaković, Jelena
PY  - 2024-04-01
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7790
AB  - Pronalazak se odnosi na multifunkcionalnu i rekonfigurabilnu mašinu alatku za brzu izradu prototipova koja predstavlja novi koncept 3-osne CNC mašine sa horizontalnom obrtnom osom, koja radi u polarno-cilindričnim koordinatama i omogućava jedinstvenu integraciju tri proizvodne tehnologije na jednoj mašini: glodanje, lasersku obradu i dodavanje materijala (3D štampanje). Mašina svoju rekonfigurabilnost ostvaruje zamenom završnih uređaja koji mogu biti glava za glodanje, laserska glava ili glava za 3D štampu, uz razvijeni rekonfigurabilni upravljački softver koji podržava sve tri tehnologije. Mašina se sastoji od nepokretne noseće strukture (1), na kojoj se nalaze horizontalne vođice (10) po kojima je klizno pomerljiv klizač (9) ose X na kome se nalaze vođice (12) po kojima je klizno pomerljiv klizač (11) ose Z, na koji se postavlja ili glavno vreteno (13A) ili laserska glava (13B) ili glava za 3D štampu (13C) kao završni uređaj. Noseća struktura (1) sadrži se i obrtnu osu A’ koju čine pogonski motor (3) koji pomoću kaišnog para (19) prenosi obrtni moment na obrtno vreteno (2), uležišteno nosačima (20) ležaja, sa steznom glavom (21) gde se postavlja obradak. Na nosećoj strukturi (1) se nalaze i vođice (15) po kojima je klizno pomerljiv nosač (14) zadnjeg šiljka koji se koristi kao dodatni oslonac pri stezanju dužih obradaka u cilju povećanja krutosti.
PB  - Zavod za intelektualnu svojinu, Beograd, Knjeginje Ljubice 5
T2  - Broj 1805 U1, Isprava o malom patentu od 01.4.2024.
T1  - Multifunkcionalna i rekonfigurabilna mašina alatka za brzu izradu prototipova glodanjem, laserskom obradom i dodavanjem materijala u polarno cilindričnim koordinatama
EP  - 9
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7790
ER  - 

@misc{
author = "Živanović, Saša and Vorkapić, Nikola and Slavković, Nikola and Dimić, Zoran and Vidaković, Jelena",
year = "2024-04-01",
abstract = "Pronalazak se odnosi na multifunkcionalnu i rekonfigurabilnu mašinu alatku za brzu izradu prototipova koja predstavlja novi koncept 3-osne CNC mašine sa horizontalnom obrtnom osom, koja radi u polarno-cilindričnim koordinatama i omogućava jedinstvenu integraciju tri proizvodne tehnologije na jednoj mašini: glodanje, lasersku obradu i dodavanje materijala (3D štampanje). Mašina svoju rekonfigurabilnost ostvaruje zamenom završnih uređaja koji mogu biti glava za glodanje, laserska glava ili glava za 3D štampu, uz razvijeni rekonfigurabilni upravljački softver koji podržava sve tri tehnologije. Mašina se sastoji od nepokretne noseće strukture (1), na kojoj se nalaze horizontalne vođice (10) po kojima je klizno pomerljiv klizač (9) ose X na kome se nalaze vođice (12) po kojima je klizno pomerljiv klizač (11) ose Z, na koji se postavlja ili glavno vreteno (13A) ili laserska glava (13B) ili glava za 3D štampu (13C) kao završni uređaj. Noseća struktura (1) sadrži se i obrtnu osu A’ koju čine pogonski motor (3) koji pomoću kaišnog para (19) prenosi obrtni moment na obrtno vreteno (2), uležišteno nosačima (20) ležaja, sa steznom glavom (21) gde se postavlja obradak. Na nosećoj strukturi (1) se nalaze i vođice (15) po kojima je klizno pomerljiv nosač (14) zadnjeg šiljka koji se koristi kao dodatni oslonac pri stezanju dužih obradaka u cilju povećanja krutosti.",
publisher = "Zavod za intelektualnu svojinu, Beograd, Knjeginje Ljubice 5",
journal = "Broj 1805 U1, Isprava o malom patentu od 01.4.2024.",
title = "Multifunkcionalna i rekonfigurabilna mašina alatka za brzu izradu prototipova glodanjem, laserskom obradom i dodavanjem materijala u polarno cilindričnim koordinatama",
pages = "9-1",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7790"
}

Živanović, S., Vorkapić, N., Slavković, N., Dimić, Z.,& Vidaković, J.. (2024-04-01). Multifunkcionalna i rekonfigurabilna mašina alatka za brzu izradu prototipova glodanjem, laserskom obradom i dodavanjem materijala u polarno cilindričnim koordinatama. in Broj 1805 U1, Isprava o malom patentu od 01.4.2024.
Zavod za intelektualnu svojinu, Beograd, Knjeginje Ljubice 5., 1-9.
https://hdl.handle.net/21.15107/rcub_machinery_7790

Živanović S, Vorkapić N, Slavković N, Dimić Z, Vidaković J. Multifunkcionalna i rekonfigurabilna mašina alatka za brzu izradu prototipova glodanjem, laserskom obradom i dodavanjem materijala u polarno cilindričnim koordinatama. in Broj 1805 U1, Isprava o malom patentu od 01.4.2024.. 2024;:1-9.
https://hdl.handle.net/21.15107/rcub_machinery_7790 .

Živanović, Saša, Vorkapić, Nikola, Slavković, Nikola, Dimić, Zoran, Vidaković, Jelena, "Multifunkcionalna i rekonfigurabilna mašina alatka za brzu izradu prototipova glodanjem, laserskom obradom i dodavanjem materijala u polarno cilindričnim koordinatama" in Broj 1805 U1, Isprava o malom patentu od 01.4.2024. (2024-04-01):1-9,
https://hdl.handle.net/21.15107/rcub_machinery_7790 .

TY  - JOUR
AU  - Đurić, Slavko
AU  - Aranđelović, Ivan
AU  - Milotić, Milan
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7799
AB  - The paper proposes an approximate solution to the classical (parabolic) multidimensional 2D and 3D heat conduction equation for a 5 × 5 cm aluminium plate and a 5 × 5 × 5 cm aluminum cube. An approximate solution of the generalized (hyperbolic) 2D and 3D equation for the considered plate and cube is also proposed. Approximate solutions were obtained by applying calculus of variations and Euler-Lagrange equations. In order to verify the correctness of the proposed approximate solutions, they were compared with the exact solutions of parabolic and hyperbolic equations. The paper also presents the research on the influence of time parameters τ as well as the relaxation times τ∗ to the variation of the profile of the temperature field for the considered aluminum plate and cube.
PB  - Scientific Research Publishing
T2  - Journal of Applied Mathematics and Physics, 2024, 12, 1383-1400
T1  - Variational Approach to 2D and 3D Heat Conduction Modeling
EP  - 1400
IS  - 4
SP  - 1383
VL  - 12
DO  - 10.4236/jamp.2024.124085
ER  - 

@article{
author = "Đurić, Slavko and Aranđelović, Ivan and Milotić, Milan",
year = "2024",
abstract = "The paper proposes an approximate solution to the classical (parabolic) multidimensional 2D and 3D heat conduction equation for a 5 × 5 cm aluminium plate and a 5 × 5 × 5 cm aluminum cube. An approximate solution of the generalized (hyperbolic) 2D and 3D equation for the considered plate and cube is also proposed. Approximate solutions were obtained by applying calculus of variations and Euler-Lagrange equations. In order to verify the correctness of the proposed approximate solutions, they were compared with the exact solutions of parabolic and hyperbolic equations. The paper also presents the research on the influence of time parameters τ as well as the relaxation times τ∗ to the variation of the profile of the temperature field for the considered aluminum plate and cube.",
publisher = "Scientific Research Publishing",
journal = "Journal of Applied Mathematics and Physics, 2024, 12, 1383-1400",
title = "Variational Approach to 2D and 3D Heat Conduction Modeling",
pages = "1400-1383",
number = "4",
volume = "12",
doi = "10.4236/jamp.2024.124085"
}

Đurić, S., Aranđelović, I.,& Milotić, M.. (2024). Variational Approach to 2D and 3D Heat Conduction Modeling. in Journal of Applied Mathematics and Physics, 2024, 12, 1383-1400
Scientific Research Publishing., 12(4), 1383-1400.
https://doi.org/10.4236/jamp.2024.124085

Đurić S, Aranđelović I, Milotić M. Variational Approach to 2D and 3D Heat Conduction Modeling. in Journal of Applied Mathematics and Physics, 2024, 12, 1383-1400. 2024;12(4):1383-1400.
doi:10.4236/jamp.2024.124085 .

Đurić, Slavko, Aranđelović, Ivan, Milotić, Milan, "Variational Approach to 2D and 3D Heat Conduction Modeling" in Journal of Applied Mathematics and Physics, 2024, 12, 1383-1400, 12, no. 4 (2024):1383-1400,
https://doi.org/10.4236/jamp.2024.124085 . .

TY  - JOUR
AU  - Momčilović, Nikola
AU  - Ilić, Nemanja
AU  - Kalajdžić, Milan
AU  - Ivošević, Špiro
AU  - Petrović, Ana
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7797
AB  - Standard structural assessments of ship hulls include the evaluation of the elastic structural response. Elastic analysis neglects extreme and unpredicted loadings, which can produce catastrophic outcomes, such as the loss of the ship’s ultimate strength. Moreover, hull elements are considered unaffected by age-related degradation. Therefore, this study models and quantifies the effect of corrosion-induced structural degradation on the ultimate strength of a high-tensile-steel (HTS) cargo ship using progressive collapse and nonlinear finite element methods. Uniform and pitting corrosion are modeled through selected scenarios, which hull elements might encounter during exploitation, producing a total of 148 calculation models. The findings show that corrosion-induced degradation can significantly decrease the ultimate strength of the hull (up to 30% for the most severe scenarios assessed). Furthermore, ultimate strength decreases almost proportionally to the amount of wastage considered. It was found that stiffener corrosion has a significant effect on the total ultimate strength. This study’s aim is to emphasize the vast importance of including ultimate strength along with ageing effects in industry-standard structural assessments of large HTS ship structures, designed to last for several decades whilst exposed to excessive and unpredicted bending moments.
PB  - MDPI
T2  - Journal of Marine Science and Engineering
T1  - Effect of Corrosion-Induced Structural Degradation on the Ultimate Strength of a High-Tensile-Steel Ship Hull
IS  - 5
SP  - 745
VL  - 12
DO  - 10.3390/jmse12050745
ER  - 

@article{
author = "Momčilović, Nikola and Ilić, Nemanja and Kalajdžić, Milan and Ivošević, Špiro and Petrović, Ana",
year = "2024",
abstract = "Standard structural assessments of ship hulls include the evaluation of the elastic structural response. Elastic analysis neglects extreme and unpredicted loadings, which can produce catastrophic outcomes, such as the loss of the ship’s ultimate strength. Moreover, hull elements are considered unaffected by age-related degradation. Therefore, this study models and quantifies the effect of corrosion-induced structural degradation on the ultimate strength of a high-tensile-steel (HTS) cargo ship using progressive collapse and nonlinear finite element methods. Uniform and pitting corrosion are modeled through selected scenarios, which hull elements might encounter during exploitation, producing a total of 148 calculation models. The findings show that corrosion-induced degradation can significantly decrease the ultimate strength of the hull (up to 30% for the most severe scenarios assessed). Furthermore, ultimate strength decreases almost proportionally to the amount of wastage considered. It was found that stiffener corrosion has a significant effect on the total ultimate strength. This study’s aim is to emphasize the vast importance of including ultimate strength along with ageing effects in industry-standard structural assessments of large HTS ship structures, designed to last for several decades whilst exposed to excessive and unpredicted bending moments.",
publisher = "MDPI",
journal = "Journal of Marine Science and Engineering",
title = "Effect of Corrosion-Induced Structural Degradation on the Ultimate Strength of a High-Tensile-Steel Ship Hull",
number = "5",
pages = "745",
volume = "12",
doi = "10.3390/jmse12050745"
}

Momčilović, N., Ilić, N., Kalajdžić, M., Ivošević, Š.,& Petrović, A.. (2024). Effect of Corrosion-Induced Structural Degradation on the Ultimate Strength of a High-Tensile-Steel Ship Hull. in Journal of Marine Science and Engineering
MDPI., 12(5), 745.
https://doi.org/10.3390/jmse12050745

Momčilović N, Ilić N, Kalajdžić M, Ivošević Š, Petrović A. Effect of Corrosion-Induced Structural Degradation on the Ultimate Strength of a High-Tensile-Steel Ship Hull. in Journal of Marine Science and Engineering. 2024;12(5):745.
doi:10.3390/jmse12050745 .

Momčilović, Nikola, Ilić, Nemanja, Kalajdžić, Milan, Ivošević, Špiro, Petrović, Ana, "Effect of Corrosion-Induced Structural Degradation on the Ultimate Strength of a High-Tensile-Steel Ship Hull" in Journal of Marine Science and Engineering, 12, no. 5 (2024):745,
https://doi.org/10.3390/jmse12050745 . .

TY  - CONF
AU  - Spasojević Brkić, Vesna
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7795
AB  - Although the mining industry is the oldest one, it is still a major source of pollution with more people hurt or injured than in any other industry, while social conflicts around it are worldwide spread. Namely, mining projects still have direct and indirect environmental impacts and seriously affect land, water, air, biota, and people, while mining equipment focused in this paper has the highest footprint. The reason for the lack of progress in mining industry is the most likely the fact that in current research streams technology-centered design dominates. Our novel Smart Miner concept aims to create a step toward smart, ergonomic and sustainable mining machinery workplaces. It proposes a paradigm shift from pure technology to a Human and Data-Centric Engineering, which could be easily transferred to other industries, and develops solutions for raising the level of environmental quality in complex interactions between phys- ical, behavioral and organizational processes field, by matching advanced operator I4.0&5.0 and society S5.0 standards.

An original idea approval route starts with mining machinery operator wellbeing in its microenvironment and its cyclical alignment with stakeholders in the value chain. After development of smart, ergonomic, non-invasive and reliable operator aid systems for regulation of physical environment job stressors - noise, human vibration, lighting, temperature, air quality, workplace layout issues etc., which solve environmental and human health issues and influence overall performance, research passes to operator macroenvironment determined by organizational contextual factors, which also impair sustainable development results. Micro and macro levels are planned to be connected and balanced by real time analytics to fit high sustainability performance indicators in novel, flexible and scalable system, aimed to increasing productivity and production together with reducing emissions and decrease of accidents rate.
PB  - Pages
C3  - 2nd International Conference on Renewable and Non-Renewable Energy & International Conference on Mechanical and Mechatronics Engineering April 22-23, 2024 | Munich, Germany
T1  - A Step Towards Smart, Ergonomic and Sustainable Mining Machinery Workplaces
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7795
ER  - 

@conference{
author = "Spasojević Brkić, Vesna",
year = "2024",
abstract = "Although the mining industry is the oldest one, it is still a major source of pollution with more people hurt or injured than in any other industry, while social conflicts around it are worldwide spread. Namely, mining projects still have direct and indirect environmental impacts and seriously affect land, water, air, biota, and people, while mining equipment focused in this paper has the highest footprint. The reason for the lack of progress in mining industry is the most likely the fact that in current research streams technology-centered design dominates. Our novel Smart Miner concept aims to create a step toward smart, ergonomic and sustainable mining machinery workplaces. It proposes a paradigm shift from pure technology to a Human and Data-Centric Engineering, which could be easily transferred to other industries, and develops solutions for raising the level of environmental quality in complex interactions between phys- ical, behavioral and organizational processes field, by matching advanced operator I4.0&5.0 and society S5.0 standards.

An original idea approval route starts with mining machinery operator wellbeing in its microenvironment and its cyclical alignment with stakeholders in the value chain. After development of smart, ergonomic, non-invasive and reliable operator aid systems for regulation of physical environment job stressors - noise, human vibration, lighting, temperature, air quality, workplace layout issues etc., which solve environmental and human health issues and influence overall performance, research passes to operator macroenvironment determined by organizational contextual factors, which also impair sustainable development results. Micro and macro levels are planned to be connected and balanced by real time analytics to fit high sustainability performance indicators in novel, flexible and scalable system, aimed to increasing productivity and production together with reducing emissions and decrease of accidents rate.",
publisher = "Pages",
journal = "2nd International Conference on Renewable and Non-Renewable Energy & International Conference on Mechanical and Mechatronics Engineering April 22-23, 2024 | Munich, Germany",
title = "A Step Towards Smart, Ergonomic and Sustainable Mining Machinery Workplaces",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7795"
}

Spasojević Brkić, V.. (2024). A Step Towards Smart, Ergonomic and Sustainable Mining Machinery Workplaces. in 2nd International Conference on Renewable and Non-Renewable Energy & International Conference on Mechanical and Mechatronics Engineering April 22-23, 2024 | Munich, Germany
Pages..
https://hdl.handle.net/21.15107/rcub_machinery_7795

Spasojević Brkić V. A Step Towards Smart, Ergonomic and Sustainable Mining Machinery Workplaces. in 2nd International Conference on Renewable and Non-Renewable Energy & International Conference on Mechanical and Mechatronics Engineering April 22-23, 2024 | Munich, Germany. 2024;.
https://hdl.handle.net/21.15107/rcub_machinery_7795 .

Spasojević Brkić, Vesna, "A Step Towards Smart, Ergonomic and Sustainable Mining Machinery Workplaces" in 2nd International Conference on Renewable and Non-Renewable Energy & International Conference on Mechanical and Mechatronics Engineering April 22-23, 2024 | Munich, Germany (2024),
https://hdl.handle.net/21.15107/rcub_machinery_7795 .

TY  - JOUR
AU  - Vukšić Popović, Marija
AU  - Momčilović, Dejan
AU  - Tanasković, Jovan
AU  - Sedmak, Aleksandar
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7789
AB  - This paper presents an analysis of train screw coupling used mainly in Europe as mechanical
connection of wagons in train. An analysis of train breaks apart incidents revealed that less than
30 % of the cases were caused by elements of the screw coupling, with coupling links accounting
for only 5 % of the failures. Therefore, the investigation focused on testing the coupling links,
which are safety elements of the screw coupling. The coupling links underwent various inspections,
including visual inspection, dimensional control, non-destructive testing, examination
of chemical composition, and mechanical tests. Dimensional control found longitudinal plastic
deformations of the links. Chemical examination revealed that the links were made of different
material than recommended, but their mechanical properties generally met the recommended
values. However, variations were observed among different links, likely due to different rates of
deformation during testing and operational conditions. Overall, the analysis and inspections
provided insights into the condition and performance of coupling links in the screw coupling
system, highlighting the importance of monitoring and maintaining these elements to ensure safe
and efficient railway operations.
PB  - Elsevier
T2  - Engineering Failure Analysis
T1  - Testing of the condition and performance of coupling links from screw couplings of train
SP  - 108331
VL  - 161
DO  - 10.1016/j.engfailanal.2024.108331
ER  - 

@article{
author = "Vukšić Popović, Marija and Momčilović, Dejan and Tanasković, Jovan and Sedmak, Aleksandar",
year = "2024",
abstract = "This paper presents an analysis of train screw coupling used mainly in Europe as mechanical
connection of wagons in train. An analysis of train breaks apart incidents revealed that less than
30 % of the cases were caused by elements of the screw coupling, with coupling links accounting
for only 5 % of the failures. Therefore, the investigation focused on testing the coupling links,
which are safety elements of the screw coupling. The coupling links underwent various inspections,
including visual inspection, dimensional control, non-destructive testing, examination
of chemical composition, and mechanical tests. Dimensional control found longitudinal plastic
deformations of the links. Chemical examination revealed that the links were made of different
material than recommended, but their mechanical properties generally met the recommended
values. However, variations were observed among different links, likely due to different rates of
deformation during testing and operational conditions. Overall, the analysis and inspections
provided insights into the condition and performance of coupling links in the screw coupling
system, highlighting the importance of monitoring and maintaining these elements to ensure safe
and efficient railway operations.",
publisher = "Elsevier",
journal = "Engineering Failure Analysis",
title = "Testing of the condition and performance of coupling links from screw couplings of train",
pages = "108331",
volume = "161",
doi = "10.1016/j.engfailanal.2024.108331"
}

Vukšić Popović, M., Momčilović, D., Tanasković, J.,& Sedmak, A.. (2024). Testing of the condition and performance of coupling links from screw couplings of train. in Engineering Failure Analysis
Elsevier., 161, 108331.
https://doi.org/10.1016/j.engfailanal.2024.108331

Vukšić Popović M, Momčilović D, Tanasković J, Sedmak A. Testing of the condition and performance of coupling links from screw couplings of train. in Engineering Failure Analysis. 2024;161:108331.
doi:10.1016/j.engfailanal.2024.108331 .

Vukšić Popović, Marija, Momčilović, Dejan, Tanasković, Jovan, Sedmak, Aleksandar, "Testing of the condition and performance of coupling links from screw couplings of train" in Engineering Failure Analysis, 161 (2024):108331,
https://doi.org/10.1016/j.engfailanal.2024.108331 . .

TY  - JOUR
AU  - Milovanović, Aleksa
AU  - Montanari, Matteo
AU  - Golubović, Zorana
AU  - Marghitas, Mihai
AU  - Spagnoli, Andrea
AU  - Brighenti, Roberto
AU  - Sedmak, Aleksandar
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7785
AB  - In recent years, Additive Manufacturing (AM) has become an increasingly popular method in industrial
applications for fabricating components with complex geometries, offering several benefits over traditional
(subtractive) manufacturing methods. Among all available AM technologies, ‘‘vat photopolymerization’’ is still
a reliable approach for manufacturing high-resolution components at relatively small costs. This particular
AM technology is based on the photopolymerization process where 3D objects are created by light-induced
solidification and it has been broadly developed and used in the past decades. Depending on the employed
light source there are three different subtypes of this technology, namely: SLA, DLP, and mSLA. Among all
three listed, the Masked Stereolithography Apparatus (mSLA) technology has emerged as a promising approach
due to the much simpler AM machine construction compared to the other two. However, the mechanical
properties of mSLA components have not been studied extensively, hence there is a lack of knowledge of
how AM process parameters and post-processing treatments affect the final mechanical properties of mSLA
components. This work presents an experimental investigation of the compressive and flexural mechanical
responses of components produced through this relatively new AM technology. A series of static and cyclic
tests were conducted with varying layer thickness and post-curing times. It is demonstrated that a thorough
optimization of the mentioned variables is required to obtain parts with the desired mechanical properties.
PB  - Elsevier
T2  - Theoretical and Applied Fracture Mechanics
T1  - Compressive and flexural mechanical responses of components obtained through mSLA vat photopolymerization technology
IS  - 104406
VL  - 131
DO  - 10.1016/j.tafmec.2024.104406
ER  - 

@article{
author = "Milovanović, Aleksa and Montanari, Matteo and Golubović, Zorana and Marghitas, Mihai and Spagnoli, Andrea and Brighenti, Roberto and Sedmak, Aleksandar",
year = "2024",
abstract = "In recent years, Additive Manufacturing (AM) has become an increasingly popular method in industrial
applications for fabricating components with complex geometries, offering several benefits over traditional
(subtractive) manufacturing methods. Among all available AM technologies, ‘‘vat photopolymerization’’ is still
a reliable approach for manufacturing high-resolution components at relatively small costs. This particular
AM technology is based on the photopolymerization process where 3D objects are created by light-induced
solidification and it has been broadly developed and used in the past decades. Depending on the employed
light source there are three different subtypes of this technology, namely: SLA, DLP, and mSLA. Among all
three listed, the Masked Stereolithography Apparatus (mSLA) technology has emerged as a promising approach
due to the much simpler AM machine construction compared to the other two. However, the mechanical
properties of mSLA components have not been studied extensively, hence there is a lack of knowledge of
how AM process parameters and post-processing treatments affect the final mechanical properties of mSLA
components. This work presents an experimental investigation of the compressive and flexural mechanical
responses of components produced through this relatively new AM technology. A series of static and cyclic
tests were conducted with varying layer thickness and post-curing times. It is demonstrated that a thorough
optimization of the mentioned variables is required to obtain parts with the desired mechanical properties.",
publisher = "Elsevier",
journal = "Theoretical and Applied Fracture Mechanics",
title = "Compressive and flexural mechanical responses of components obtained through mSLA vat photopolymerization technology",
number = "104406",
volume = "131",
doi = "10.1016/j.tafmec.2024.104406"
}

Milovanović, A., Montanari, M., Golubović, Z., Marghitas, M., Spagnoli, A., Brighenti, R.,& Sedmak, A.. (2024). Compressive and flexural mechanical responses of components obtained through mSLA vat photopolymerization technology. in Theoretical and Applied Fracture Mechanics
Elsevier., 131(104406).
https://doi.org/10.1016/j.tafmec.2024.104406

Milovanović A, Montanari M, Golubović Z, Marghitas M, Spagnoli A, Brighenti R, Sedmak A. Compressive and flexural mechanical responses of components obtained through mSLA vat photopolymerization technology. in Theoretical and Applied Fracture Mechanics. 2024;131(104406).
doi:10.1016/j.tafmec.2024.104406 .

Milovanović, Aleksa, Montanari, Matteo, Golubović, Zorana, Marghitas, Mihai, Spagnoli, Andrea, Brighenti, Roberto, Sedmak, Aleksandar, "Compressive and flexural mechanical responses of components obtained through mSLA vat photopolymerization technology" in Theoretical and Applied Fracture Mechanics, 131, no. 104406 (2024),
https://doi.org/10.1016/j.tafmec.2024.104406 . .

TY  - JOUR
AU  - Milutinović, Milan
AU  - Vasilić, Goran
AU  - Živanović, Saša
AU  - Dimić, Zoran
AU  - Kokotović, Branko
AU  - Slavković, Nikola
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7772
AB  - Brazed carbide profile mill cutters are widely used in the machining of wood, wood materials, and plastic to form various functional and aesthetic surfaces. Tools of this kind are used in serial and mass production and they are built today using very costly 5-axis grinding machines supported by specialized CAM software that is very expensive too. The paper first developed the possible concept of 5-axis grinding of brazed profile mill cutters using universal diamond grinding wheel shapes. The developed concept of 5-axis grinding served as a basis for the developed approach for 3+2-axis grinding of the brazed formmill cutters which is the essence of this paper. Verification of this set approach of 3+2-axis grinding is performed on a developed functional prototype of a simple 3+2-axis grinder (Axes XYZ are CNC controlled, axes B and C are unpowered axes and have fixed positions during grinding). Based on the established 3+2 grinding strategy complete grinding of a complex profile has been performed on a developed functional prototype. Shape and measures of the cutting edge profile achieved by grinding are inspected on an optical measuring system and showed exceptional results. The established 3+2-axis method of grinding
is an economically successful alternative to costly 5-axis grinding machines, as well as to specialized software, presented in the paper through experimental and practical application.
PB  - Springer-Verlag London Ltd.
T2  - The International Journal of Advanced Manufacturing Technology
T1  - Calculation of wheel path for 3+2-axis grinding of brazed carbide profilemill cutters for wood and plastic
EP  - 4620
SP  - 4603
VL  - 130
DO  - 10.1007/s00170-024-12992-3
ER  - 

@article{
author = "Milutinović, Milan and Vasilić, Goran and Živanović, Saša and Dimić, Zoran and Kokotović, Branko and Slavković, Nikola",
year = "2024",
abstract = "Brazed carbide profile mill cutters are widely used in the machining of wood, wood materials, and plastic to form various functional and aesthetic surfaces. Tools of this kind are used in serial and mass production and they are built today using very costly 5-axis grinding machines supported by specialized CAM software that is very expensive too. The paper first developed the possible concept of 5-axis grinding of brazed profile mill cutters using universal diamond grinding wheel shapes. The developed concept of 5-axis grinding served as a basis for the developed approach for 3+2-axis grinding of the brazed formmill cutters which is the essence of this paper. Verification of this set approach of 3+2-axis grinding is performed on a developed functional prototype of a simple 3+2-axis grinder (Axes XYZ are CNC controlled, axes B and C are unpowered axes and have fixed positions during grinding). Based on the established 3+2 grinding strategy complete grinding of a complex profile has been performed on a developed functional prototype. Shape and measures of the cutting edge profile achieved by grinding are inspected on an optical measuring system and showed exceptional results. The established 3+2-axis method of grinding
is an economically successful alternative to costly 5-axis grinding machines, as well as to specialized software, presented in the paper through experimental and practical application.",
publisher = "Springer-Verlag London Ltd.",
journal = "The International Journal of Advanced Manufacturing Technology",
title = "Calculation of wheel path for 3+2-axis grinding of brazed carbide profilemill cutters for wood and plastic",
pages = "4620-4603",
volume = "130",
doi = "10.1007/s00170-024-12992-3"
}

Milutinović, M., Vasilić, G., Živanović, S., Dimić, Z., Kokotović, B.,& Slavković, N.. (2024). Calculation of wheel path for 3+2-axis grinding of brazed carbide profilemill cutters for wood and plastic. in The International Journal of Advanced Manufacturing Technology
Springer-Verlag London Ltd.., 130, 4603-4620.
https://doi.org/10.1007/s00170-024-12992-3

Milutinović M, Vasilić G, Živanović S, Dimić Z, Kokotović B, Slavković N. Calculation of wheel path for 3+2-axis grinding of brazed carbide profilemill cutters for wood and plastic. in The International Journal of Advanced Manufacturing Technology. 2024;130:4603-4620.
doi:10.1007/s00170-024-12992-3 .

Milutinović, Milan, Vasilić, Goran, Živanović, Saša, Dimić, Zoran, Kokotović, Branko, Slavković, Nikola, "Calculation of wheel path for 3+2-axis grinding of brazed carbide profilemill cutters for wood and plastic" in The International Journal of Advanced Manufacturing Technology, 130 (2024):4603-4620,
https://doi.org/10.1007/s00170-024-12992-3 . .

TY  - JOUR
AU  - Mitrović, Nenad
AU  - Golubović, Zorana
AU  - Mitrović, Aleksandra
AU  - Travica, Milan
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Petrović, Aleksandar
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7781
AB  - The three-point bending test is a valuable method for evaluating the mechanical properties of 3D-printed biomaterials, which can be used in various applications. The use of 3D printing in specimen preparation enables precise control over material composition and microstructure, facilitating the investigation of different printing parameters and advanced materials. The traditional approach to analyzing the mechanical properties of a material using a three-point bending test has the disadvantage that it provides only global information about the material’s behavior. This means that it does not provide detailed insight into the local strain distribution within the material. However, the 2D Digital Image Correlation (DIC) method offers additional insight, especially in terms of strain localization. DIC is an optical technique that measures full-field displacements and strains on the surface of a sample. PLA and enhanced PLA-X material were utilized to create three-point bending samples. The aim of this paper was to analyze and compare the influence of aging on the mechanical properties of PLA and enhanced PLA-X materials using three-point bending coupled with the DIC method. The results showed statistically significant differences between the PLA and PLA-X, for both the new and aged materials. The aged PLA samples had the highest average value of maximal force around 68 N, which was an increase of 8.8% compared to the new PLA samples. On the other hand, the aged PLA-X material had an increase of 7.7% in the average maximal force compared to the new PLA-X samples. When comparing the two materials, the PLA samples had higher maximal force values, 6.2% for the new samples, and 7.3% for the aged samples. The DIC results showed that both the new PLA and PLA-X samples endured higher strain values at Points 1 and 2 than the aged ones, except for the aged PLA-X sample at Point 2, where the new sample had higher strain values. However, for the first 5 min of the experiment, both materials exhibited identical behavior, after which point significant differences started to occur for both materials, as well as at Points 1 and 2. A more profound comprehension of the biomechanical characteristics of both PLA and PLA-X material is essential to enhance the knowledge for potential biomedical applications. The DIC method was found to be a powerful tool for analyzing the deformation and failure behavior of samples and for complementing the traditional approach to material testing.
T2  - Micromachines
T1  - Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials
IS  - 3
SP  - 395
VL  - 15
DO  - 10.3390/mi15030395
ER  - 

@article{
author = "Mitrović, Nenad and Golubović, Zorana and Mitrović, Aleksandra and Travica, Milan and Trajković, Isaak and Milošević, Miloš and Petrović, Aleksandar",
year = "2024",
abstract = "The three-point bending test is a valuable method for evaluating the mechanical properties of 3D-printed biomaterials, which can be used in various applications. The use of 3D printing in specimen preparation enables precise control over material composition and microstructure, facilitating the investigation of different printing parameters and advanced materials. The traditional approach to analyzing the mechanical properties of a material using a three-point bending test has the disadvantage that it provides only global information about the material’s behavior. This means that it does not provide detailed insight into the local strain distribution within the material. However, the 2D Digital Image Correlation (DIC) method offers additional insight, especially in terms of strain localization. DIC is an optical technique that measures full-field displacements and strains on the surface of a sample. PLA and enhanced PLA-X material were utilized to create three-point bending samples. The aim of this paper was to analyze and compare the influence of aging on the mechanical properties of PLA and enhanced PLA-X materials using three-point bending coupled with the DIC method. The results showed statistically significant differences between the PLA and PLA-X, for both the new and aged materials. The aged PLA samples had the highest average value of maximal force around 68 N, which was an increase of 8.8% compared to the new PLA samples. On the other hand, the aged PLA-X material had an increase of 7.7% in the average maximal force compared to the new PLA-X samples. When comparing the two materials, the PLA samples had higher maximal force values, 6.2% for the new samples, and 7.3% for the aged samples. The DIC results showed that both the new PLA and PLA-X samples endured higher strain values at Points 1 and 2 than the aged ones, except for the aged PLA-X sample at Point 2, where the new sample had higher strain values. However, for the first 5 min of the experiment, both materials exhibited identical behavior, after which point significant differences started to occur for both materials, as well as at Points 1 and 2. A more profound comprehension of the biomechanical characteristics of both PLA and PLA-X material is essential to enhance the knowledge for potential biomedical applications. The DIC method was found to be a powerful tool for analyzing the deformation and failure behavior of samples and for complementing the traditional approach to material testing.",
journal = "Micromachines",
title = "Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials",
number = "3",
pages = "395",
volume = "15",
doi = "10.3390/mi15030395"
}

Mitrović, N., Golubović, Z., Mitrović, A., Travica, M., Trajković, I., Milošević, M.,& Petrović, A.. (2024). Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials. in Micromachines, 15(3), 395.
https://doi.org/10.3390/mi15030395

Mitrović N, Golubović Z, Mitrović A, Travica M, Trajković I, Milošević M, Petrović A. Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials. in Micromachines. 2024;15(3):395.
doi:10.3390/mi15030395 .

Mitrović, Nenad, Golubović, Zorana, Mitrović, Aleksandra, Travica, Milan, Trajković, Isaak, Milošević, Miloš, Petrović, Aleksandar, "Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials" in Micromachines, 15, no. 3 (2024):395,
https://doi.org/10.3390/mi15030395 . .

TY  - JOUR
AU  - Aranđelović, Mihajlo
AU  - Đorđević, Branislav R.
AU  - Sedmak, Simon
AU  - Radu, Dorin
AU  - Petrović, Ana
AU  - Dikić, Stefan
AU  - Sedmak, Aleksandar
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7776
AB  - Failure analysis of welded joint with multiple defects was performed taking into account the effect of all defects, not just a dominant one. Four cases of multiple defects in welded joint under the uniaxial tensile loading were investigated using extended Finite Element Method. Two-dimensional Finite Element Models were made according to the tensile specimens with initial crack located in a critical area of welded joint. For each multiple defects case, numerical simulation was performed with three initial crack depth. Engineering Critical Analysis was made using Failure Assessment Diagrams for each defect that was determined as critical for its welded joint case. Numerical simulation showed that the geometry of the most prominent one from a point of view of structural integrity. It was concluded that the vertical misalignment in combination with a secondary defect, had the most adverse effect which can lead to failure of welded structure.
PB  - Elsevier
T2  - Engineering Failure Analysis
T1  - Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis
SP  - 108176
VL  - 160
DO  - 10.1016/j.engfailanal.2024.108176
ER  - 

@article{
author = "Aranđelović, Mihajlo and Đorđević, Branislav R. and Sedmak, Simon and Radu, Dorin and Petrović, Ana and Dikić, Stefan and Sedmak, Aleksandar",
year = "2024",
abstract = "Failure analysis of welded joint with multiple defects was performed taking into account the effect of all defects, not just a dominant one. Four cases of multiple defects in welded joint under the uniaxial tensile loading were investigated using extended Finite Element Method. Two-dimensional Finite Element Models were made according to the tensile specimens with initial crack located in a critical area of welded joint. For each multiple defects case, numerical simulation was performed with three initial crack depth. Engineering Critical Analysis was made using Failure Assessment Diagrams for each defect that was determined as critical for its welded joint case. Numerical simulation showed that the geometry of the most prominent one from a point of view of structural integrity. It was concluded that the vertical misalignment in combination with a secondary defect, had the most adverse effect which can lead to failure of welded structure.",
publisher = "Elsevier",
journal = "Engineering Failure Analysis",
title = "Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis",
pages = "108176",
volume = "160",
doi = "10.1016/j.engfailanal.2024.108176"
}

Aranđelović, M., Đorđević, B. R., Sedmak, S., Radu, D., Petrović, A., Dikić, S.,& Sedmak, A.. (2024). Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis. in Engineering Failure Analysis
Elsevier., 160, 108176.
https://doi.org/10.1016/j.engfailanal.2024.108176

Aranđelović M, Đorđević BR, Sedmak S, Radu D, Petrović A, Dikić S, Sedmak A. Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis. in Engineering Failure Analysis. 2024;160:108176.
doi:10.1016/j.engfailanal.2024.108176 .

Aranđelović, Mihajlo, Đorđević, Branislav R., Sedmak, Simon, Radu, Dorin, Petrović, Ana, Dikić, Stefan, Sedmak, Aleksandar, "Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis" in Engineering Failure Analysis, 160 (2024):108176,
https://doi.org/10.1016/j.engfailanal.2024.108176 . .

TY  - JOUR
AU  - Alsharif, Abdulghder Mohahmed
AU  - Spasojević Brkić, Vesna
AU  - Misita, Mirjana
AU  - Mihajlović, Ivan
AU  - Brkić, Aleksandar
AU  - Papić, Neda
AU  - Perišić, Martina
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7746
AB  - Transport and mining companies are vulnerable to a variety of hazards, and this paper offers a novel conceptual framework for organisational resilience assessment at different organisational levels. It is based on a safety climate and performances assessment in companies in the transport and mining sector. The framework contains factor and reliability analysis and continues by applying the SMART method from the perspective of resilience corners: anticipate, monitor, react and learn. The highest resilience coefficients at all organisational levels are obtained regarding safety awareness, safety training and safety communication areas, while the lowest values are observed for risk assessment and the organisational environment. The obtained results indicate that the ‘monitor’ resilience corner must be improved at all organisational levels, employees trained and procedures changed, since employees do not sufficiently use experience from previous events. The very high values at all organisational levels of the coefficients regarding the ‘anticipate’ and ‘learn’ resilience corners indicate organisational adaptation to changes through corrective activities, rather than planned preventive ones. All hierarchical levels have good resilience indicators, except for middle management, which expressed an adequate resilience index, due to the lower ratings of the safety training, organisational commitment, risk assessment and management support areas.
PB  - Taylor & Francis
T2  - Civil Engineering and Environmental Systems
T1  - The safety climate, hierarchical levels and resilience assessment in transport and mining companies
DO  - 10.1080/10286608.2024.2313753
ER  - 

@article{
author = "Alsharif, Abdulghder Mohahmed and Spasojević Brkić, Vesna and Misita, Mirjana and Mihajlović, Ivan and Brkić, Aleksandar and Papić, Neda and Perišić, Martina",
year = "2024",
abstract = "Transport and mining companies are vulnerable to a variety of hazards, and this paper offers a novel conceptual framework for organisational resilience assessment at different organisational levels. It is based on a safety climate and performances assessment in companies in the transport and mining sector. The framework contains factor and reliability analysis and continues by applying the SMART method from the perspective of resilience corners: anticipate, monitor, react and learn. The highest resilience coefficients at all organisational levels are obtained regarding safety awareness, safety training and safety communication areas, while the lowest values are observed for risk assessment and the organisational environment. The obtained results indicate that the ‘monitor’ resilience corner must be improved at all organisational levels, employees trained and procedures changed, since employees do not sufficiently use experience from previous events. The very high values at all organisational levels of the coefficients regarding the ‘anticipate’ and ‘learn’ resilience corners indicate organisational adaptation to changes through corrective activities, rather than planned preventive ones. All hierarchical levels have good resilience indicators, except for middle management, which expressed an adequate resilience index, due to the lower ratings of the safety training, organisational commitment, risk assessment and management support areas.",
publisher = "Taylor & Francis",
journal = "Civil Engineering and Environmental Systems",
title = "The safety climate, hierarchical levels and resilience assessment in transport and mining companies",
doi = "10.1080/10286608.2024.2313753"
}

Alsharif, A. M., Spasojević Brkić, V., Misita, M., Mihajlović, I., Brkić, A., Papić, N.,& Perišić, M.. (2024). The safety climate, hierarchical levels and resilience assessment in transport and mining companies. in Civil Engineering and Environmental Systems
Taylor & Francis..
https://doi.org/10.1080/10286608.2024.2313753

Alsharif AM, Spasojević Brkić V, Misita M, Mihajlović I, Brkić A, Papić N, Perišić M. The safety climate, hierarchical levels and resilience assessment in transport and mining companies. in Civil Engineering and Environmental Systems. 2024;.
doi:10.1080/10286608.2024.2313753 .

Alsharif, Abdulghder Mohahmed, Spasojević Brkić, Vesna, Misita, Mirjana, Mihajlović, Ivan, Brkić, Aleksandar, Papić, Neda, Perišić, Martina, "The safety climate, hierarchical levels and resilience assessment in transport and mining companies" in Civil Engineering and Environmental Systems (2024),
https://doi.org/10.1080/10286608.2024.2313753 . .

TY  - JOUR
AU  - Lukić, Nebojša
AU  - Ivanov, Toni
AU  - Svorcan, Jelena
AU  - Simonović, Aleksandar
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7771
AB  - A novel concept of morphing airfoils, capable of changing camber and thickness, is proposed. A variable airfoil shape, defined by six input parameters, is achieved by allowing the three spinal points (at fixed axial positions) to slide vertically, while the upper and lower surfaces are determined by the lengths of the three corresponding ribs that are perpendicular to the spine. Thus, it is possible to find the most appropriate geometric configuration for a wide range of possible operating conditions often present with contemporary unmanned aerial vehicles. Shape optimizations for different Reynolds numbers and different cost functions are performed by coupling a genetic algorithm with simple panel method flow calculations. The obtained airfoils are presented and compared, whereas the proposed concept is validated by more advanced flow simulations. It appears that improvements in aerodynamic performance of nearly 20% can be expected at Re ranging from 0.05 × 106 to 0.1 × 106. The proposed methodology shows promise and can be applied to different types of lifting surfaces, including wing, tail or propeller blade segments. To check the viability of this method for producing airfoils that can be used in a practical sense, structural analysis of one of the obtained geometries using a simplified 1D finite element method as well as a more detailed 3D analysis are performed. The model is then 3D-printed on a fused deposition modeling (FDM) printer with a polyethylene terephthalate glycol (PETG) filament, and the capability of the airfoil to adequately morph between the two desired geometries is experimentally shown.
PB  - MDPI
T2  - Aerospace
T1  - Numerical Investigation and Optimization of a Morphing Airfoil Designed for Lower Reynolds Number
IS  - 4
SP  - 252
VL  - 11
DO  - 10.3390/aerospace11040252
ER  - 

@article{
author = "Lukić, Nebojša and Ivanov, Toni and Svorcan, Jelena and Simonović, Aleksandar",
year = "2024",
abstract = "A novel concept of morphing airfoils, capable of changing camber and thickness, is proposed. A variable airfoil shape, defined by six input parameters, is achieved by allowing the three spinal points (at fixed axial positions) to slide vertically, while the upper and lower surfaces are determined by the lengths of the three corresponding ribs that are perpendicular to the spine. Thus, it is possible to find the most appropriate geometric configuration for a wide range of possible operating conditions often present with contemporary unmanned aerial vehicles. Shape optimizations for different Reynolds numbers and different cost functions are performed by coupling a genetic algorithm with simple panel method flow calculations. The obtained airfoils are presented and compared, whereas the proposed concept is validated by more advanced flow simulations. It appears that improvements in aerodynamic performance of nearly 20% can be expected at Re ranging from 0.05 × 106 to 0.1 × 106. The proposed methodology shows promise and can be applied to different types of lifting surfaces, including wing, tail or propeller blade segments. To check the viability of this method for producing airfoils that can be used in a practical sense, structural analysis of one of the obtained geometries using a simplified 1D finite element method as well as a more detailed 3D analysis are performed. The model is then 3D-printed on a fused deposition modeling (FDM) printer with a polyethylene terephthalate glycol (PETG) filament, and the capability of the airfoil to adequately morph between the two desired geometries is experimentally shown.",
publisher = "MDPI",
journal = "Aerospace",
title = "Numerical Investigation and Optimization of a Morphing Airfoil Designed for Lower Reynolds Number",
number = "4",
pages = "252",
volume = "11",
doi = "10.3390/aerospace11040252"
}

Lukić, N., Ivanov, T., Svorcan, J.,& Simonović, A.. (2024). Numerical Investigation and Optimization of a Morphing Airfoil Designed for Lower Reynolds Number. in Aerospace
MDPI., 11(4), 252.
https://doi.org/10.3390/aerospace11040252

Lukić N, Ivanov T, Svorcan J, Simonović A. Numerical Investigation and Optimization of a Morphing Airfoil Designed for Lower Reynolds Number. in Aerospace. 2024;11(4):252.
doi:10.3390/aerospace11040252 .

Lukić, Nebojša, Ivanov, Toni, Svorcan, Jelena, Simonović, Aleksandar, "Numerical Investigation and Optimization of a Morphing Airfoil Designed for Lower Reynolds Number" in Aerospace, 11, no. 4 (2024):252,
https://doi.org/10.3390/aerospace11040252 . .

TY  - JOUR
AU  - Kosanić, Nenad
AU  - Marolt, Jakob
AU  - Zrnić, Nenad
AU  - Lerher, Tone
PY  - 2024
UR  - https://www.tandfonline.com/doi/full/10.1080/00207543.2023.2221750
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7773
AB  - The paper presents an analytical model for travel time evaluation in double-deep, triple-deep, quadruple-deep and fivefold-deep tier-captive shuttle-based storage and retrieval system (SBS/RS). Under the assumption of the deepest location rule for the storage process and the nearest neighbour rule for the retrieval process, the expressions for single-command and dual-command cycle times of the shuttle vehicle and elevator are developed, from which the SBS/RS performance can be estimated. The model based on the probability theory enables the evaluation of all individual times that make up the cycle times and assessment of the average number of totes relocated during a retrieval process. Special attention is devoted to the modelling of the relocation of totes which block access to the requested tote during the retrieval process. The validity of the analytical model is examined via the developed simulation model. The given case study shows that the proposed analytical travel time model results match the results of the simulation model. The presented modelling strategy could be applied to bigger system racking depths following the same modelling logic.
PB  - Taylor and Francis Ltd.
T2  - International Journal of Production Research
T1  - Travel time model for multiple-deep shuttle-based storage and retrieval systems
EP  - 2639
IS  - 7
SP  - 2606
VL  - 62
DO  - 10.1080/00207543.2023.2221750
ER  - 

@article{
author = "Kosanić, Nenad and Marolt, Jakob and Zrnić, Nenad and Lerher, Tone",
year = "2024",
abstract = "The paper presents an analytical model for travel time evaluation in double-deep, triple-deep, quadruple-deep and fivefold-deep tier-captive shuttle-based storage and retrieval system (SBS/RS). Under the assumption of the deepest location rule for the storage process and the nearest neighbour rule for the retrieval process, the expressions for single-command and dual-command cycle times of the shuttle vehicle and elevator are developed, from which the SBS/RS performance can be estimated. The model based on the probability theory enables the evaluation of all individual times that make up the cycle times and assessment of the average number of totes relocated during a retrieval process. Special attention is devoted to the modelling of the relocation of totes which block access to the requested tote during the retrieval process. The validity of the analytical model is examined via the developed simulation model. The given case study shows that the proposed analytical travel time model results match the results of the simulation model. The presented modelling strategy could be applied to bigger system racking depths following the same modelling logic.",
publisher = "Taylor and Francis Ltd.",
journal = "International Journal of Production Research",
title = "Travel time model for multiple-deep shuttle-based storage and retrieval systems",
pages = "2639-2606",
number = "7",
volume = "62",
doi = "10.1080/00207543.2023.2221750"
}

Kosanić, N., Marolt, J., Zrnić, N.,& Lerher, T.. (2024). Travel time model for multiple-deep shuttle-based storage and retrieval systems. in International Journal of Production Research
Taylor and Francis Ltd.., 62(7), 2606-2639.
https://doi.org/10.1080/00207543.2023.2221750

Kosanić N, Marolt J, Zrnić N, Lerher T. Travel time model for multiple-deep shuttle-based storage and retrieval systems. in International Journal of Production Research. 2024;62(7):2606-2639.
doi:10.1080/00207543.2023.2221750 .

Kosanić, Nenad, Marolt, Jakob, Zrnić, Nenad, Lerher, Tone, "Travel time model for multiple-deep shuttle-based storage and retrieval systems" in International Journal of Production Research, 62, no. 7 (2024):2606-2639,
https://doi.org/10.1080/00207543.2023.2221750 . .

TY  - PAT
AU  - Tanasković, Jovan
AU  - Vasiljević, Katarina
AU  - Golubović, Zorana
AU  - Stojanović, Jagoš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7759
AB  - Pronalazak u širem smislu pripada uređajima za rukovanje i transport, a u užem smislu pronalazak se odnosi na uređaje za prihvatanje tereta koji se koriste na uređajima za rukovanje, podizanje i interni transport aluminijumskih elemenata, podsklopova i sklopova nosećih struktura različitih vrsta šinskih vozila, koji se koriste u industriji šinskih vozila.
PB  - Zavod za intelektualnu svojinu, Beograd, Republika Srbija
T2  - МП-2023/0061, Reg. No.: 1803 U1, Br. reš.: 2024/168-МП-2023/0061 од 12.01.2024., Datum objavljivanja i broj Glasnika intelektualne svojine: Br. 1/2024 od 31.01.2024.
T1  - Specijalni alat za interni transport strukturnih elemenata šinskih vozila - SPECIAL TOOL FOR INTERNAL TRANSPORT OF STRUCTURAL ELEMENTS OF RAIL VEHICLES
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7759
ER  - 

@misc{
author = "Tanasković, Jovan and Vasiljević, Katarina and Golubović, Zorana and Stojanović, Jagoš",
year = "2024",
abstract = "Pronalazak u širem smislu pripada uređajima za rukovanje i transport, a u užem smislu pronalazak se odnosi na uređaje za prihvatanje tereta koji se koriste na uređajima za rukovanje, podizanje i interni transport aluminijumskih elemenata, podsklopova i sklopova nosećih struktura različitih vrsta šinskih vozila, koji se koriste u industriji šinskih vozila.",
publisher = "Zavod za intelektualnu svojinu, Beograd, Republika Srbija",
journal = "МП-2023/0061, Reg. No.: 1803 U1, Br. reš.: 2024/168-МП-2023/0061 од 12.01.2024., Datum objavljivanja i broj Glasnika intelektualne svojine: Br. 1/2024 od 31.01.2024.",
title = "Specijalni alat za interni transport strukturnih elemenata šinskih vozila - SPECIAL TOOL FOR INTERNAL TRANSPORT OF STRUCTURAL ELEMENTS OF RAIL VEHICLES",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7759"
}

Tanasković, J., Vasiljević, K., Golubović, Z.,& Stojanović, J.. (2024). Specijalni alat za interni transport strukturnih elemenata šinskih vozila - SPECIAL TOOL FOR INTERNAL TRANSPORT OF STRUCTURAL ELEMENTS OF RAIL VEHICLES. in МП-2023/0061, Reg. No.: 1803 U1, Br. reš.: 2024/168-МП-2023/0061 од 12.01.2024., Datum objavljivanja i broj Glasnika intelektualne svojine: Br. 1/2024 od 31.01.2024.
Zavod za intelektualnu svojinu, Beograd, Republika Srbija..
https://hdl.handle.net/21.15107/rcub_machinery_7759

Tanasković J, Vasiljević K, Golubović Z, Stojanović J. Specijalni alat za interni transport strukturnih elemenata šinskih vozila - SPECIAL TOOL FOR INTERNAL TRANSPORT OF STRUCTURAL ELEMENTS OF RAIL VEHICLES. in МП-2023/0061, Reg. No.: 1803 U1, Br. reš.: 2024/168-МП-2023/0061 од 12.01.2024., Datum objavljivanja i broj Glasnika intelektualne svojine: Br. 1/2024 od 31.01.2024.. 2024;.
https://hdl.handle.net/21.15107/rcub_machinery_7759 .

Tanasković, Jovan, Vasiljević, Katarina, Golubović, Zorana, Stojanović, Jagoš, "Specijalni alat za interni transport strukturnih elemenata šinskih vozila - SPECIAL TOOL FOR INTERNAL TRANSPORT OF STRUCTURAL ELEMENTS OF RAIL VEHICLES" in МП-2023/0061, Reg. No.: 1803 U1, Br. reš.: 2024/168-МП-2023/0061 од 12.01.2024., Datum objavljivanja i broj Glasnika intelektualne svojine: Br. 1/2024 od 31.01.2024. (2024),
https://hdl.handle.net/21.15107/rcub_machinery_7759 .

TY  - JOUR
AU  - Đurić, Slavko
AU  - Aranđelović, Ivan
AU  - Milotić, Milan
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7744
AB  - It is known that Fourier’s heat equation, which is parabolic, implies an infinite
velocity propagation, or, in other words, that the mechanism of heat
conduction is established instantaneously under all conditions. This is unacceptable
on physical grounds in spite of the fact that Fourier’s law agrees well
with experiment. However, discrepancies are likely to occur when extremely
short distances or extremely short time intervals are considered, as they must
in some modern problems of aero-thermodynamics. Cattaneo and independently
Vernotte proved that such process can be described by Heaviside’s telegraph
equation. This paper shows that this fact can be derived using calculus of
variations, by application of the Euler-Lagrange equation. So, we proved that
the equation of heat conduction with finite velocity propagation of the thermal
disturbance can be obtained as a solution to one variational problem
PB  - Scientific Research Publishing
T2  - Journal of Applied Mathematics and Physics
T1  - Variational Approach to Heat Conduction Modeling
EP  - 248
IS  - 1
SP  - 234
VL  - 12
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7744
ER  - 

@article{
author = "Đurić, Slavko and Aranđelović, Ivan and Milotić, Milan",
year = "2024",
abstract = "It is known that Fourier’s heat equation, which is parabolic, implies an infinite
velocity propagation, or, in other words, that the mechanism of heat
conduction is established instantaneously under all conditions. This is unacceptable
on physical grounds in spite of the fact that Fourier’s law agrees well
with experiment. However, discrepancies are likely to occur when extremely
short distances or extremely short time intervals are considered, as they must
in some modern problems of aero-thermodynamics. Cattaneo and independently
Vernotte proved that such process can be described by Heaviside’s telegraph
equation. This paper shows that this fact can be derived using calculus of
variations, by application of the Euler-Lagrange equation. So, we proved that
the equation of heat conduction with finite velocity propagation of the thermal
disturbance can be obtained as a solution to one variational problem",
publisher = "Scientific Research Publishing",
journal = "Journal of Applied Mathematics and Physics",
title = "Variational Approach to Heat Conduction Modeling",
pages = "248-234",
number = "1",
volume = "12",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7744"
}

Đurić, S., Aranđelović, I.,& Milotić, M.. (2024). Variational Approach to Heat Conduction Modeling. in Journal of Applied Mathematics and Physics
Scientific Research Publishing., 12(1), 234-248.
https://hdl.handle.net/21.15107/rcub_machinery_7744

Đurić S, Aranđelović I, Milotić M. Variational Approach to Heat Conduction Modeling. in Journal of Applied Mathematics and Physics. 2024;12(1):234-248.
https://hdl.handle.net/21.15107/rcub_machinery_7744 .

Đurić, Slavko, Aranđelović, Ivan, Milotić, Milan, "Variational Approach to Heat Conduction Modeling" in Journal of Applied Mathematics and Physics, 12, no. 1 (2024):234-248,
https://hdl.handle.net/21.15107/rcub_machinery_7744 .

TY  - JOUR
AU  - Fermo, Luisa
AU  - Reichel, Lothar
AU  - Rodriguez, Giuseppe
AU  - Spalević, Miodrag
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7357
PB  - Elsevier
T2  - Applied Mathematics and Computation
T1  - Averaged Nystr\" om  interpolants for the solution of Fredholm integral equations of the second kind
DO  - 10.1016/j.amc.2023.128482
ER  - 

@article{
author = "Fermo, Luisa and Reichel, Lothar and Rodriguez, Giuseppe and Spalević, Miodrag",
year = "2024",
publisher = "Elsevier",
journal = "Applied Mathematics and Computation",
title = "Averaged Nystr\" om  interpolants for the solution of Fredholm integral equations of the second kind",
doi = "10.1016/j.amc.2023.128482"
}

Fermo, L., Reichel, L., Rodriguez, G.,& Spalević, M.. (2024). Averaged Nystr\" om  interpolants for the solution of Fredholm integral equations of the second kind. in Applied Mathematics and Computation
Elsevier..
https://doi.org/10.1016/j.amc.2023.128482

Fermo L, Reichel L, Rodriguez G, Spalević M. Averaged Nystr\" om  interpolants for the solution of Fredholm integral equations of the second kind. in Applied Mathematics and Computation. 2024;.
doi:10.1016/j.amc.2023.128482 .

Fermo, Luisa, Reichel, Lothar, Rodriguez, Giuseppe, Spalević, Miodrag, "Averaged Nystr\" om  interpolants for the solution of Fredholm integral equations of the second kind" in Applied Mathematics and Computation (2024),
https://doi.org/10.1016/j.amc.2023.128482 . .

TY  - JOUR
AU  - Đukić, Dušan
AU  - Mutavdžić Đukić, Rada
AU  - Reichel, Lothar
AU  - Spalević, Miodrag
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7068
AB  - Optimal averaged Gauss quadrature rules provide estimates for the quadrature error in Gauss rules, as well as estimates for the error incurred when approximating
matrix functionals of the form u
T
f (A)v with a large matrix A ∈ R
N×N by lowrank approximations that are obtained by applying a few steps of the symmetric or
nonsymmetric Lanczos processes to A; here u, v ∈ R
N
are vectors. The latter process
is used when the measure associated with the Gauss quadrature rule has support in
the complex plane. The symmetric Lanczos process yields a real tridiagonal matrix,
whose entries determine the recursion coefficients of the monic orthogonal polynomials
associated with the measure, while the nonsymmetric Lanczos process determines a
nonsymmetric tridiagonal matrix, whose entries are recursion coefficients for a pair of
sets of bi-orthogonal polynomials. Recently, it has been shown, by applying the results
of Peherstorfer, that optimal averaged Gauss quadrature rules, which are associated
with a nonnegative measure with support on the real axis, can be expressed as a
weighted sum of two quadrature rules. This decomposition allows faster evaluation of
optimal averaged Gauss quadrature rules than the previously available representation.
The present paper provides a new self-contained proof of this decomposition that
is based on linear algebra techniques. Moreover, these techniques are generalized to
determine a decomposition of the optimal averaged quadrature rules that are associated
with the tridiagonal matrices determined by the nonsymmetric Lanczos process. Also,
the splitting of complex symmetric tridiagonal matrices is discussed. The new splittings
allow faster evaluation of optimal averaged Gauss quadrature rules than the previously
available representations. Computational aspects are discussed.
PB  - Elsevier
T2  - Journal of Computational and Applied Mathematics
T1  - Decompositions of optimal averaged Gauss quadrature rules
IS  - Art.  115586
VL  - 438
DO  - 10.1016/j.cam.2023.115586
ER  - 

@article{
author = "Đukić, Dušan and Mutavdžić Đukić, Rada and Reichel, Lothar and Spalević, Miodrag",
year = "2024",
abstract = "Optimal averaged Gauss quadrature rules provide estimates for the quadrature error in Gauss rules, as well as estimates for the error incurred when approximating
matrix functionals of the form u
T
f (A)v with a large matrix A ∈ R
N×N by lowrank approximations that are obtained by applying a few steps of the symmetric or
nonsymmetric Lanczos processes to A; here u, v ∈ R
N
are vectors. The latter process
is used when the measure associated with the Gauss quadrature rule has support in
the complex plane. The symmetric Lanczos process yields a real tridiagonal matrix,
whose entries determine the recursion coefficients of the monic orthogonal polynomials
associated with the measure, while the nonsymmetric Lanczos process determines a
nonsymmetric tridiagonal matrix, whose entries are recursion coefficients for a pair of
sets of bi-orthogonal polynomials. Recently, it has been shown, by applying the results
of Peherstorfer, that optimal averaged Gauss quadrature rules, which are associated
with a nonnegative measure with support on the real axis, can be expressed as a
weighted sum of two quadrature rules. This decomposition allows faster evaluation of
optimal averaged Gauss quadrature rules than the previously available representation.
The present paper provides a new self-contained proof of this decomposition that
is based on linear algebra techniques. Moreover, these techniques are generalized to
determine a decomposition of the optimal averaged quadrature rules that are associated
with the tridiagonal matrices determined by the nonsymmetric Lanczos process. Also,
the splitting of complex symmetric tridiagonal matrices is discussed. The new splittings
allow faster evaluation of optimal averaged Gauss quadrature rules than the previously
available representations. Computational aspects are discussed.",
publisher = "Elsevier",
journal = "Journal of Computational and Applied Mathematics",
title = "Decompositions of optimal averaged Gauss quadrature rules",
number = "Art.  115586",
volume = "438",
doi = "10.1016/j.cam.2023.115586"
}

Đukić, D., Mutavdžić Đukić, R., Reichel, L.,& Spalević, M.. (2024). Decompositions of optimal averaged Gauss quadrature rules. in Journal of Computational and Applied Mathematics
Elsevier., 438(Art.  115586).
https://doi.org/10.1016/j.cam.2023.115586

Đukić D, Mutavdžić Đukić R, Reichel L, Spalević M. Decompositions of optimal averaged Gauss quadrature rules. in Journal of Computational and Applied Mathematics. 2024;438(Art.  115586).
doi:10.1016/j.cam.2023.115586 .

Đukić, Dušan, Mutavdžić Đukić, Rada, Reichel, Lothar, Spalević, Miodrag, "Decompositions of optimal averaged Gauss quadrature rules" in Journal of Computational and Applied Mathematics, 438, no. Art.  115586 (2024),
https://doi.org/10.1016/j.cam.2023.115586 . .

TY  - JOUR
AU  - Reichel, Lothar
AU  - Spalević, Miodrag
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7067
AB  - We describe numerical methods for the construction of interpolatory quadrature rules of Radau and Lobatto types. In particular, we are interested in deriving efficient algorithms for computing optimal averaged Gauss–Radau and Gauss–Lobatto type javascript:undefined;quadrature rules. These averaged rules allow us to estimate the quadrature error in Gauss–Radau and Gauss–Lobatto quadrature rules. This is important since the latter rules have higher algebraic degree of exactness than the corresponding Gauss rules, and this makes it possible to construct averaged quadrature rules of higher algebraic degree of exactness than the corresponding “standard” averaged Gauss rules available in the literature.
PB  - Elsevier
T2  - Journal of Computational and Applied Mathematics
T1  - Radau-  and Lobatto-type averaged Gauss rules
IS  - Art  115477
VL  - 437
DO  - 10.1016/j.cam.2023.115475
ER  - 

@article{
author = "Reichel, Lothar and Spalević, Miodrag",
year = "2024",
abstract = "We describe numerical methods for the construction of interpolatory quadrature rules of Radau and Lobatto types. In particular, we are interested in deriving efficient algorithms for computing optimal averaged Gauss–Radau and Gauss–Lobatto type javascript:undefined;quadrature rules. These averaged rules allow us to estimate the quadrature error in Gauss–Radau and Gauss–Lobatto quadrature rules. This is important since the latter rules have higher algebraic degree of exactness than the corresponding Gauss rules, and this makes it possible to construct averaged quadrature rules of higher algebraic degree of exactness than the corresponding “standard” averaged Gauss rules available in the literature.",
publisher = "Elsevier",
journal = "Journal of Computational and Applied Mathematics",
title = "Radau-  and Lobatto-type averaged Gauss rules",
number = "Art  115477",
volume = "437",
doi = "10.1016/j.cam.2023.115475"
}

Reichel, L.,& Spalević, M.. (2024). Radau-  and Lobatto-type averaged Gauss rules. in Journal of Computational and Applied Mathematics
Elsevier., 437(Art  115477).
https://doi.org/10.1016/j.cam.2023.115475

Reichel L, Spalević M. Radau-  and Lobatto-type averaged Gauss rules. in Journal of Computational and Applied Mathematics. 2024;437(Art  115477).
doi:10.1016/j.cam.2023.115475 .

Reichel, Lothar, Spalević, Miodrag, "Radau-  and Lobatto-type averaged Gauss rules" in Journal of Computational and Applied Mathematics, 437, no. Art  115477 (2024),
https://doi.org/10.1016/j.cam.2023.115475 . .

TY  - CONF
AU  - Golubović, Zorana
AU  - Mitrović, Aleksandra
AU  - Mitrović, Nenad
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4809
AB  - Three-dimensional printing is an innovative technique which is offering advantages in engineering in terms of modeling and processing, even shapes and geometries which are complex and are difficult to be manufactured with other methods. This novel digital technology provides advantages in production process of an individualized 3D object when compared to subtractive computer numeric controlled methods and conventional dentistry techniques. Applied digital workflow in dentistry embraces data acquisition with intraoral scanning, object design in CAD software and 3D printing with corresponding materials on adequate 3D printer. With the utilization of the 3D techniques, it is possible to make adequate digital models and to reproduce them with enough precision, which led to a transformation in dentistry practice and a wide range of present and possible future applications.
An important benefit regarding 3D printing in dental practice is the fact that various materials can be used, such as polymers, resins, metals, ceramics etc., even multiple different materials during one production process, if needed. On the other side, there is a handful of available AM techniques depending on the model geometry complexity and desired accuracy. Implementation of 3D technologies proved to be beneficial in laboratory and clinical settings, surgical and restorative
dentistry, and continues to expand in research and dental education. The aim of this article was to give one perspective and to review the techniques, materials and current applications of 3D printing in dentistry. As well, significance of waste and recycling of materials used for printing in this area is pointed out.
PB  - Springer Science and Business Media Deutschland GmbH
C3  - Lecture Notes in Networks and Systems
T1  - 3D Printing in Contemporary Dentistry
EP  - 232
SP  - 213
VL  - 564
DO  - 10.1007/978-3-031-19499-3_12
ER  - 

@conference{
author = "Golubović, Zorana and Mitrović, Aleksandra and Mitrović, Nenad",
year = "2023",
abstract = "Three-dimensional printing is an innovative technique which is offering advantages in engineering in terms of modeling and processing, even shapes and geometries which are complex and are difficult to be manufactured with other methods. This novel digital technology provides advantages in production process of an individualized 3D object when compared to subtractive computer numeric controlled methods and conventional dentistry techniques. Applied digital workflow in dentistry embraces data acquisition with intraoral scanning, object design in CAD software and 3D printing with corresponding materials on adequate 3D printer. With the utilization of the 3D techniques, it is possible to make adequate digital models and to reproduce them with enough precision, which led to a transformation in dentistry practice and a wide range of present and possible future applications.
An important benefit regarding 3D printing in dental practice is the fact that various materials can be used, such as polymers, resins, metals, ceramics etc., even multiple different materials during one production process, if needed. On the other side, there is a handful of available AM techniques depending on the model geometry complexity and desired accuracy. Implementation of 3D technologies proved to be beneficial in laboratory and clinical settings, surgical and restorative
dentistry, and continues to expand in research and dental education. The aim of this article was to give one perspective and to review the techniques, materials and current applications of 3D printing in dentistry. As well, significance of waste and recycling of materials used for printing in this area is pointed out.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Lecture Notes in Networks and Systems",
title = "3D Printing in Contemporary Dentistry",
pages = "232-213",
volume = "564",
doi = "10.1007/978-3-031-19499-3_12"
}

Golubović, Z., Mitrović, A.,& Mitrović, N.. (2023). 3D Printing in Contemporary Dentistry. in Lecture Notes in Networks and Systems
Springer Science and Business Media Deutschland GmbH., 564, 213-232.
https://doi.org/10.1007/978-3-031-19499-3_12

Golubović Z, Mitrović A, Mitrović N. 3D Printing in Contemporary Dentistry. in Lecture Notes in Networks and Systems. 2023;564:213-232.
doi:10.1007/978-3-031-19499-3_12 .

Golubović, Zorana, Mitrović, Aleksandra, Mitrović, Nenad, "3D Printing in Contemporary Dentistry" in Lecture Notes in Networks and Systems, 564 (2023):213-232,
https://doi.org/10.1007/978-3-031-19499-3_12 . .

TY  - CONF
AU  - Lazarević, Mihailo
AU  - Radojević, Darko
AU  - Mandić, Petar
AU  - Pišl, Stjepko
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7233
AB  - In this paper, the problem of finite-time stability (FTS) for a class of nonstationary neutral nonlinear perturbed fractional-order time delay systems (FOTDS) is studied. Based on an extended form of generalized Gronwall inequality, a new FTS stability criterion for such systems is established in terms of the Mittag-Leffler function. Finally, a numerical example is given to illustrate the effectiveness and applicability of the proposed theoretical results.
PB  - Belgrade: Serbian Society of Mechanics
C3  - 9th International Congress of the Serbian Society of Mechanics, July 5-7, July, 2023, Vrnjačka Banja, Serbia
T1  - Further results on robust finite-time stability nonstationary two-term neutral nonlinear perturbed fractional - order  time delay systems
EP  - 234
SP  - 225
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7233
ER  - 

@conference{
author = "Lazarević, Mihailo and Radojević, Darko and Mandić, Petar and Pišl, Stjepko",
year = "2023",
abstract = "In this paper, the problem of finite-time stability (FTS) for a class of nonstationary neutral nonlinear perturbed fractional-order time delay systems (FOTDS) is studied. Based on an extended form of generalized Gronwall inequality, a new FTS stability criterion for such systems is established in terms of the Mittag-Leffler function. Finally, a numerical example is given to illustrate the effectiveness and applicability of the proposed theoretical results.",
publisher = "Belgrade: Serbian Society of Mechanics",
journal = "9th International Congress of the Serbian Society of Mechanics, July 5-7, July, 2023, Vrnjačka Banja, Serbia",
title = "Further results on robust finite-time stability nonstationary two-term neutral nonlinear perturbed fractional - order  time delay systems",
pages = "234-225",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7233"
}

Lazarević, M., Radojević, D., Mandić, P.,& Pišl, S.. (2023). Further results on robust finite-time stability nonstationary two-term neutral nonlinear perturbed fractional - order  time delay systems. in 9th International Congress of the Serbian Society of Mechanics, July 5-7, July, 2023, Vrnjačka Banja, Serbia
Belgrade: Serbian Society of Mechanics., 225-234.
https://hdl.handle.net/21.15107/rcub_machinery_7233

Lazarević M, Radojević D, Mandić P, Pišl S. Further results on robust finite-time stability nonstationary two-term neutral nonlinear perturbed fractional - order  time delay systems. in 9th International Congress of the Serbian Society of Mechanics, July 5-7, July, 2023, Vrnjačka Banja, Serbia. 2023;:225-234.
https://hdl.handle.net/21.15107/rcub_machinery_7233 .

Lazarević, Mihailo, Radojević, Darko, Mandić, Petar, Pišl, Stjepko, "Further results on robust finite-time stability nonstationary two-term neutral nonlinear perturbed fractional - order  time delay systems" in 9th International Congress of the Serbian Society of Mechanics, July 5-7, July, 2023, Vrnjačka Banja, Serbia (2023):225-234,
https://hdl.handle.net/21.15107/rcub_machinery_7233 .

TY  - CONF
AU  - Mandić, Petar
AU  - Šekara, Tomislav
AU  - Lazarević, Mihailo
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7237
AB  - This paper deals with a topic of robot following a trajectory in three-dimensional space with a prescribed velocity law. Considering the nonlinear nature of robot manipulators, and high demands regarding tracking performances, this task is very challenging, but also very popular in control community because of its importance in industrial applications. To tackle successfully this problem, we proposed a resonant controller, which outperforms classical control schemes usually employed in this situation. In this particular case, robot manipulator needs to follow an ellipse trajectory with constant speed along the curve. First, mathematical model of three degrees of freedom robot arm is derived with included actuator dynamics. Then, numerical solution of inverse kinematics problem needs to be calculated in order to obtain desired trajectory in joint space. Third, analytical procedure for designing resonant controller is given, with parameters of the controller chosen in order to achieve a good performance/robustness trade-off, which is a key element in modern control design. Finally, proposed control scheme is tested and results of robot simulation are given in the end. Final remarks conclude the paper.
PB  - Belgrade: Serbian Society of Mechanics
C3  - Proceedings 9th International Congress of Serbian Society of Mechanics Vrnjačka Banja, Serbia, July 5-7, 2023
T1  - ANALYTICAL DESIGN OF RESONANT CONTROLLER APPLIED FOR SOLVING ROBOT ARM TRACKING PROBLEM
EP  - 282
SP  - 275
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7237
ER  - 

@conference{
author = "Mandić, Petar and Šekara, Tomislav and Lazarević, Mihailo",
year = "2023",
abstract = "This paper deals with a topic of robot following a trajectory in three-dimensional space with a prescribed velocity law. Considering the nonlinear nature of robot manipulators, and high demands regarding tracking performances, this task is very challenging, but also very popular in control community because of its importance in industrial applications. To tackle successfully this problem, we proposed a resonant controller, which outperforms classical control schemes usually employed in this situation. In this particular case, robot manipulator needs to follow an ellipse trajectory with constant speed along the curve. First, mathematical model of three degrees of freedom robot arm is derived with included actuator dynamics. Then, numerical solution of inverse kinematics problem needs to be calculated in order to obtain desired trajectory in joint space. Third, analytical procedure for designing resonant controller is given, with parameters of the controller chosen in order to achieve a good performance/robustness trade-off, which is a key element in modern control design. Finally, proposed control scheme is tested and results of robot simulation are given in the end. Final remarks conclude the paper.",
publisher = "Belgrade: Serbian Society of Mechanics",
journal = "Proceedings 9th International Congress of Serbian Society of Mechanics Vrnjačka Banja, Serbia, July 5-7, 2023",
title = "ANALYTICAL DESIGN OF RESONANT CONTROLLER APPLIED FOR SOLVING ROBOT ARM TRACKING PROBLEM",
pages = "282-275",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7237"
}

Mandić, P., Šekara, T.,& Lazarević, M.. (2023). ANALYTICAL DESIGN OF RESONANT CONTROLLER APPLIED FOR SOLVING ROBOT ARM TRACKING PROBLEM. in Proceedings 9th International Congress of Serbian Society of Mechanics Vrnjačka Banja, Serbia, July 5-7, 2023
Belgrade: Serbian Society of Mechanics., 275-282.
https://hdl.handle.net/21.15107/rcub_machinery_7237

Mandić P, Šekara T, Lazarević M. ANALYTICAL DESIGN OF RESONANT CONTROLLER APPLIED FOR SOLVING ROBOT ARM TRACKING PROBLEM. in Proceedings 9th International Congress of Serbian Society of Mechanics Vrnjačka Banja, Serbia, July 5-7, 2023. 2023;:275-282.
https://hdl.handle.net/21.15107/rcub_machinery_7237 .

Mandić, Petar, Šekara, Tomislav, Lazarević, Mihailo, "ANALYTICAL DESIGN OF RESONANT CONTROLLER APPLIED FOR SOLVING ROBOT ARM TRACKING PROBLEM" in Proceedings 9th International Congress of Serbian Society of Mechanics Vrnjačka Banja, Serbia, July 5-7, 2023 (2023):275-282,
https://hdl.handle.net/21.15107/rcub_machinery_7237 .

TY  - CONF
AU  - Bojović, Božica
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7375
AB  - The most commercially widespread extrusion-based additive manufacturing technologies use thermoplastic filament materials, as opposed to vat polymerisation technology, which uses photopolymer resins. Thus,, for non-industrial applications and customised parts, ABS and PLA thermoplastic materials were mostly used for FDM printers, until the appearance of PLA and ABS resin for DLP. The development of a new resin material, ABS and PLA, presents a great challenge for customising 3D printing, as well as the comparing their mechanical properties. 
In the present study, we focus on investigating the tensile, flexural, and compressive mechanical properties of ABS and PLA materials used in the DLP process. Five specimens for each resin were modelled and printed according to standard ISO 527-2, and tested on a standard testing machine. The analysis included additional processing of collected data using Matlab, and comparison of fractured surface images acquired by microscopy. 
The obtained results showed that the differences in the mechanical properties of ABS resin in comparison to PLA resin are not unilateral. PLA specimens’ ultimate tensile strength (UTS) is higher for tensile and flexural test and lower for compression tests. In the case of elastic modulus, PLA specimens exhibit higher values for all three mechanical tests. Elongation at yield has higher values for ABS specimens in tensile and compression tests compare to PLA specimens. Definitely, both resin materials after DLP processing reveal better mechanical behaviour under compression compared to tension stress. Selection between these two is case sensitive and strongly depends on the 3D printed part application.
C3  - CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “   Zlatibor, July 04 – July 06, 2022
T1  - STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE
SP  - 4
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7375
ER  - 

@conference{
author = "Bojović, Božica",
year = "2023",
abstract = "The most commercially widespread extrusion-based additive manufacturing technologies use thermoplastic filament materials, as opposed to vat polymerisation technology, which uses photopolymer resins. Thus,, for non-industrial applications and customised parts, ABS and PLA thermoplastic materials were mostly used for FDM printers, until the appearance of PLA and ABS resin for DLP. The development of a new resin material, ABS and PLA, presents a great challenge for customising 3D printing, as well as the comparing their mechanical properties. 
In the present study, we focus on investigating the tensile, flexural, and compressive mechanical properties of ABS and PLA materials used in the DLP process. Five specimens for each resin were modelled and printed according to standard ISO 527-2, and tested on a standard testing machine. The analysis included additional processing of collected data using Matlab, and comparison of fractured surface images acquired by microscopy. 
The obtained results showed that the differences in the mechanical properties of ABS resin in comparison to PLA resin are not unilateral. PLA specimens’ ultimate tensile strength (UTS) is higher for tensile and flexural test and lower for compression tests. In the case of elastic modulus, PLA specimens exhibit higher values for all three mechanical tests. Elongation at yield has higher values for ABS specimens in tensile and compression tests compare to PLA specimens. Definitely, both resin materials after DLP processing reveal better mechanical behaviour under compression compared to tension stress. Selection between these two is case sensitive and strongly depends on the 3D printed part application.",
journal = "CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “   Zlatibor, July 04 – July 06, 2022",
title = "STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE",
pages = "4",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7375"
}

Bojović, B.. (2023). STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE. in CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “   Zlatibor, July 04 – July 06, 2022, 4.
https://hdl.handle.net/21.15107/rcub_machinery_7375

Bojović B. STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE. in CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “   Zlatibor, July 04 – July 06, 2022. 2023;:4.
https://hdl.handle.net/21.15107/rcub_machinery_7375 .

Bojović, Božica, "STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE" in CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “   Zlatibor, July 04 – July 06, 2022 (2023):4,
https://hdl.handle.net/21.15107/rcub_machinery_7375 .

TY  - CONF
AU  - Golubović, Zorana
AU  - Petrov, Ljubiša
AU  - Bojović, Božica
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7151
AB  - Additive manufacturing (AM) technologies have evolved significantly in recent decades, bringing new trends to production processes. The advantages compared to conventional technologies are numerous: production is simpler and faster, geometry can be adjusted more easily, the quality of finished parts is better, less material is wasted, and costs are lower. Because of the wide range of
possibilities, the different AM processes and the materials that can be used, these technologies have found their place in many industries, with significant application in biomedical field. Flexibility in geometric freedom, in particular, is important for the fabrication of biomedical devices. AM technologies proved that diagnostics is facilitated and improved through the fabrication of customized and in-demand parts, consultation between physicians and patients are supported, and thus the opportunity to develop individualized, patient-specific medicine is provided. This review briefly outlines current applications and AM processes in the biomedical field.
C3  - XVI International Scientific Conference Contemporary Materials, Banja Luka, September 7- 8th
T1  - Biomedical Engineering and Additive Manufacturing
SP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7151
ER  - 

@conference{
author = "Golubović, Zorana and Petrov, Ljubiša and Bojović, Božica",
year = "2023",
abstract = "Additive manufacturing (AM) technologies have evolved significantly in recent decades, bringing new trends to production processes. The advantages compared to conventional technologies are numerous: production is simpler and faster, geometry can be adjusted more easily, the quality of finished parts is better, less material is wasted, and costs are lower. Because of the wide range of
possibilities, the different AM processes and the materials that can be used, these technologies have found their place in many industries, with significant application in biomedical field. Flexibility in geometric freedom, in particular, is important for the fabrication of biomedical devices. AM technologies proved that diagnostics is facilitated and improved through the fabrication of customized and in-demand parts, consultation between physicians and patients are supported, and thus the opportunity to develop individualized, patient-specific medicine is provided. This review briefly outlines current applications and AM processes in the biomedical field.",
journal = "XVI International Scientific Conference Contemporary Materials, Banja Luka, September 7- 8th",
title = "Biomedical Engineering and Additive Manufacturing",
pages = "93",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7151"
}

Golubović, Z., Petrov, L.,& Bojović, B.. (2023). Biomedical Engineering and Additive Manufacturing. in XVI International Scientific Conference Contemporary Materials, Banja Luka, September 7- 8th, 93.
https://hdl.handle.net/21.15107/rcub_machinery_7151

Golubović Z, Petrov L, Bojović B. Biomedical Engineering and Additive Manufacturing. in XVI International Scientific Conference Contemporary Materials, Banja Luka, September 7- 8th. 2023;:93.
https://hdl.handle.net/21.15107/rcub_machinery_7151 .

Golubović, Zorana, Petrov, Ljubiša, Bojović, Božica, "Biomedical Engineering and Additive Manufacturing" in XVI International Scientific Conference Contemporary Materials, Banja Luka, September 7- 8th (2023):93,
https://hdl.handle.net/21.15107/rcub_machinery_7151 .

TY  - CONF
AU  - Mihajlović, Ivan
AU  - Stević, Željko
AU  - Spasojević Brkić, Vesna
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7438
AB  - This manuscript is presenting the process of development of the original software application, e.g. the tool, to be used in assessment of the resilience level and the safety climate indicators in the industrial organizations in the transport and mining sector. The initial data that was used to develop the app was collected using the questionnaire in which employees, segmented in five different organizational levels (e.g. transport and mining machines operators, support workers, first line managers, middle level managers and top level managers), were assessing the present state and the importance of each of the investigated safety indicators.
Based on this initial database the starting measurement model was developed that was used to develop the application which calculate the resilience levels of the organizations, based on adequate MCDA methods and four resilience corners approach.
PB  - University of Niš Faculty of mechanical engineering Department of Transport Engineering and Logistics
C3  - Proceedings of the ninth international conference transport and logistics
T1  - DEVELOPING THE TOOL FOR ASSESSING RESILIENCE AND SAFETY CLIMATE ASPECTS IN THE TRANSPORT AND MINING COMPANIES
EP  - 8
SP  - 5
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7438
ER  - 

@conference{
author = "Mihajlović, Ivan and Stević, Željko and Spasojević Brkić, Vesna",
year = "2023",
abstract = "This manuscript is presenting the process of development of the original software application, e.g. the tool, to be used in assessment of the resilience level and the safety climate indicators in the industrial organizations in the transport and mining sector. The initial data that was used to develop the app was collected using the questionnaire in which employees, segmented in five different organizational levels (e.g. transport and mining machines operators, support workers, first line managers, middle level managers and top level managers), were assessing the present state and the importance of each of the investigated safety indicators.
Based on this initial database the starting measurement model was developed that was used to develop the application which calculate the resilience levels of the organizations, based on adequate MCDA methods and four resilience corners approach.",
publisher = "University of Niš Faculty of mechanical engineering Department of Transport Engineering and Logistics",
journal = "Proceedings of the ninth international conference transport and logistics",
title = "DEVELOPING THE TOOL FOR ASSESSING RESILIENCE AND SAFETY CLIMATE ASPECTS IN THE TRANSPORT AND MINING COMPANIES",
pages = "8-5",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7438"
}

Mihajlović, I., Stević, Ž.,& Spasojević Brkić, V.. (2023). DEVELOPING THE TOOL FOR ASSESSING RESILIENCE AND SAFETY CLIMATE ASPECTS IN THE TRANSPORT AND MINING COMPANIES. in Proceedings of the ninth international conference transport and logistics
University of Niš Faculty of mechanical engineering Department of Transport Engineering and Logistics., 5-8.
https://hdl.handle.net/21.15107/rcub_machinery_7438

Mihajlović I, Stević Ž, Spasojević Brkić V. DEVELOPING THE TOOL FOR ASSESSING RESILIENCE AND SAFETY CLIMATE ASPECTS IN THE TRANSPORT AND MINING COMPANIES. in Proceedings of the ninth international conference transport and logistics. 2023;:5-8.
https://hdl.handle.net/21.15107/rcub_machinery_7438 .

Mihajlović, Ivan, Stević, Željko, Spasojević Brkić, Vesna, "DEVELOPING THE TOOL FOR ASSESSING RESILIENCE AND SAFETY CLIMATE ASPECTS IN THE TRANSPORT AND MINING COMPANIES" in Proceedings of the ninth international conference transport and logistics (2023):5-8,
https://hdl.handle.net/21.15107/rcub_machinery_7438 .

TY  - CONF
AU  - Mihajlović, Ivan
AU  - Perišić, Martina
AU  - Spasojević Brkić, Vesna
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7439
AB  - This research presents a comprehensive examination of the SWOT (Strengths, Weaknesses, Opportunities, Threats) and quantified TOWS (Threats, Opportunities, Weaknesses, Strengths) frameworks, aiming to elucidate their significance in strategic planning in the SME sector. The emphasis will be given to the SWOT analysis application that was developed with the aim of collecting and analyzing the responses of entrepreneurs and SMEs owners during self-evaluation of their businesses. The primary objective is to explore the potential of this tool to facilitate strategic decision-making and enhance organizational performance in SMEs. The research also seeks to uncover practical applications and limitations through empirical evidence and case studies in education.
PB  - University of Belgrade - Faculty of Organizational Sciences
C3  - 2nd International Danube Cup Conference on Entrepreneurship Education (IDC2E2 2023)
T1  - QUANTITATIVE SWOT-TOWS ANALYSIS BASED ON THE ENTREPRENEURS SELF EVALUATION
EP  - 158
SP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7439
ER  - 

@conference{
author = "Mihajlović, Ivan and Perišić, Martina and Spasojević Brkić, Vesna",
year = "2023",
abstract = "This research presents a comprehensive examination of the SWOT (Strengths, Weaknesses, Opportunities, Threats) and quantified TOWS (Threats, Opportunities, Weaknesses, Strengths) frameworks, aiming to elucidate their significance in strategic planning in the SME sector. The emphasis will be given to the SWOT analysis application that was developed with the aim of collecting and analyzing the responses of entrepreneurs and SMEs owners during self-evaluation of their businesses. The primary objective is to explore the potential of this tool to facilitate strategic decision-making and enhance organizational performance in SMEs. The research also seeks to uncover practical applications and limitations through empirical evidence and case studies in education.",
publisher = "University of Belgrade - Faculty of Organizational Sciences",
journal = "2nd International Danube Cup Conference on Entrepreneurship Education (IDC2E2 2023)",
title = "QUANTITATIVE SWOT-TOWS ANALYSIS BASED ON THE ENTREPRENEURS SELF EVALUATION",
pages = "158-155",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7439"
}

Mihajlović, I., Perišić, M.,& Spasojević Brkić, V.. (2023). QUANTITATIVE SWOT-TOWS ANALYSIS BASED ON THE ENTREPRENEURS SELF EVALUATION. in 2nd International Danube Cup Conference on Entrepreneurship Education (IDC2E2 2023)
University of Belgrade - Faculty of Organizational Sciences., 155-158.
https://hdl.handle.net/21.15107/rcub_machinery_7439

Mihajlović I, Perišić M, Spasojević Brkić V. QUANTITATIVE SWOT-TOWS ANALYSIS BASED ON THE ENTREPRENEURS SELF EVALUATION. in 2nd International Danube Cup Conference on Entrepreneurship Education (IDC2E2 2023). 2023;:155-158.
https://hdl.handle.net/21.15107/rcub_machinery_7439 .

Mihajlović, Ivan, Perišić, Martina, Spasojević Brkić, Vesna, "QUANTITATIVE SWOT-TOWS ANALYSIS BASED ON THE ENTREPRENEURS SELF EVALUATION" in 2nd International Danube Cup Conference on Entrepreneurship Education (IDC2E2 2023) (2023):155-158,
https://hdl.handle.net/21.15107/rcub_machinery_7439 .

TY  - CONF
AU  - Trišović, Nataša
AU  - Li, Wei
AU  - Jeremić, Olivera
AU  - Ristić, Ognjen
AU  - Sedak, Miloš
AU  - Petrović, Ana
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7183
AB  - Structural design optimization for dynamic behavior is crucial for structures reliant on their dynamic characteristics for operational performance and integrity.
PB  - Trans Tech Publications
C3  - 9th International Scientific Conference on Advances in Mechanical Engineering (ISCAME), the Book of Abstracts, 2023 Trans Tech Publications Ltd, Switzerland
T1  - Sensitivity Analysis in Dynamic Systems: Exploring Insights
EP  - 113
SP  - 113
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7183
ER  - 

@conference{
author = "Trišović, Nataša and Li, Wei and Jeremić, Olivera and Ristić, Ognjen and Sedak, Miloš and Petrović, Ana",
year = "2023",
abstract = "Structural design optimization for dynamic behavior is crucial for structures reliant on their dynamic characteristics for operational performance and integrity.",
publisher = "Trans Tech Publications",
journal = "9th International Scientific Conference on Advances in Mechanical Engineering (ISCAME), the Book of Abstracts, 2023 Trans Tech Publications Ltd, Switzerland",
title = "Sensitivity Analysis in Dynamic Systems: Exploring Insights",
pages = "113-113",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7183"
}

Trišović, N., Li, W., Jeremić, O., Ristić, O., Sedak, M.,& Petrović, A.. (2023). Sensitivity Analysis in Dynamic Systems: Exploring Insights. in 9th International Scientific Conference on Advances in Mechanical Engineering (ISCAME), the Book of Abstracts, 2023 Trans Tech Publications Ltd, Switzerland
Trans Tech Publications., 2, 113-113.
https://hdl.handle.net/21.15107/rcub_machinery_7183

Trišović N, Li W, Jeremić O, Ristić O, Sedak M, Petrović A. Sensitivity Analysis in Dynamic Systems: Exploring Insights. in 9th International Scientific Conference on Advances in Mechanical Engineering (ISCAME), the Book of Abstracts, 2023 Trans Tech Publications Ltd, Switzerland. 2023;2:113-113.
https://hdl.handle.net/21.15107/rcub_machinery_7183 .

Trišović, Nataša, Li, Wei, Jeremić, Olivera, Ristić, Ognjen, Sedak, Miloš, Petrović, Ana, "Sensitivity Analysis in Dynamic Systems: Exploring Insights" in 9th International Scientific Conference on Advances in Mechanical Engineering (ISCAME), the Book of Abstracts, 2023 Trans Tech Publications Ltd, Switzerland, 2 (2023):113-113,
https://hdl.handle.net/21.15107/rcub_machinery_7183 .