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 .

TY  - JOUR
AU  - Sedak, Miloš
AU  - Rosić Vitas, Maja
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7334
AB  - The multi-objective optimization (MOO) of a planetary gearbox is a challenging optimization problem, which includes simultaneous minimization of a number of conflicting objectives including gearbox volume, contact ratio, power loss, etc., and at the same time satisfying a number of complex constraints. This paper addresses this complex problem by proposing a modified hybrid algorithm, named Multi-objective Hybrid Butterfly Optimization and Particle Swarm Optimization Algorithm (HMOBPSO), which integrates PSO and Particle Swarm Optimization (BOA) algorithms with the aim to improve the performance with respect to the considered problem. The proposed approach solves the non-convex Pareto set and provides vital insights for lowering gear weight and efficiency and avoiding early failure. The experimental analysis employs numerical simulations to determine the Pareto optimal solutions to the formulated MOO problem. The results show that the proposed method offers significant improvements in terms of gearbox size, efficiency, and spacing compared to the conventional methods. In addition, an assessment of the optimization performance of the proposed HMOBPSO algorithm has been conducted by comparing it to other established algorithms across several ZDT and DTLZ benchmark problems, where it demonstrated its effectiveness.
PB  - MDPI, Basel, Switzerland
T2  - Applied Sciences
T1  - Hybrid Butterfly Optimization and Particle Swarm Optimization Algorithm-Based Constrained Multi-Objective Nonlinear Planetary Gearbox Optimization
IS  - 21
SP  - 11682
VL  - 13
DO  - 10.3390/app132111682
ER  - 

@article{
author = "Sedak, Miloš and Rosić Vitas, Maja",
year = "2023",
abstract = "The multi-objective optimization (MOO) of a planetary gearbox is a challenging optimization problem, which includes simultaneous minimization of a number of conflicting objectives including gearbox volume, contact ratio, power loss, etc., and at the same time satisfying a number of complex constraints. This paper addresses this complex problem by proposing a modified hybrid algorithm, named Multi-objective Hybrid Butterfly Optimization and Particle Swarm Optimization Algorithm (HMOBPSO), which integrates PSO and Particle Swarm Optimization (BOA) algorithms with the aim to improve the performance with respect to the considered problem. The proposed approach solves the non-convex Pareto set and provides vital insights for lowering gear weight and efficiency and avoiding early failure. The experimental analysis employs numerical simulations to determine the Pareto optimal solutions to the formulated MOO problem. The results show that the proposed method offers significant improvements in terms of gearbox size, efficiency, and spacing compared to the conventional methods. In addition, an assessment of the optimization performance of the proposed HMOBPSO algorithm has been conducted by comparing it to other established algorithms across several ZDT and DTLZ benchmark problems, where it demonstrated its effectiveness.",
publisher = "MDPI, Basel, Switzerland",
journal = "Applied Sciences",
title = "Hybrid Butterfly Optimization and Particle Swarm Optimization Algorithm-Based Constrained Multi-Objective Nonlinear Planetary Gearbox Optimization",
number = "21",
pages = "11682",
volume = "13",
doi = "10.3390/app132111682"
}

Sedak, M.,& Rosić Vitas, M.. (2023). Hybrid Butterfly Optimization and Particle Swarm Optimization Algorithm-Based Constrained Multi-Objective Nonlinear Planetary Gearbox Optimization. in Applied Sciences
MDPI, Basel, Switzerland., 13(21), 11682.
https://doi.org/10.3390/app132111682

Sedak M, Rosić Vitas M. Hybrid Butterfly Optimization and Particle Swarm Optimization Algorithm-Based Constrained Multi-Objective Nonlinear Planetary Gearbox Optimization. in Applied Sciences. 2023;13(21):11682.
doi:10.3390/app132111682 .

Sedak, Miloš, Rosić Vitas, Maja, "Hybrid Butterfly Optimization and Particle Swarm Optimization Algorithm-Based Constrained Multi-Objective Nonlinear Planetary Gearbox Optimization" in Applied Sciences, 13, no. 21 (2023):11682,
https://doi.org/10.3390/app132111682 . .

TY  - JOUR
AU  - Rosić Vitas, Maja
AU  - Sedak, Miloš
AU  - Simić, Mirjana
AU  - Pejović, Predrag V.
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5360
AB  - This paper addresses the problem of time difference of arrival (TDOA) based passive target localizationand proposes an improved chaos-driven hybrid differential evolution (DE) algorithm and butterfly optimization algorithm (BOA), named ICDEBOA, to solve this complex optimization problem. The proposed algorithm consists of a new mutation strategy with the mechanisms of the BOA algorithm incorporated into the DE algorithm. To boost optimization effectiveness, chaos theory is employed to adjust the control parameter values. The considered localization problem is formulated using the maximum likelihood estimator. To perform the accuracy comparison, the convex constrained weighting least squares algorithm is applied to the considered localization problem as the widely used method in literature. The statistical analysis shows that the proposed modifications to the ICDEBOA algorithm improve its optimization performance, as demonstrated by the improved performance on the CEC2014 benchmark problems. The ICDEBOA algorithm is also shown to be more robust than existing algorithms in noisy environments. Numerical simulation results show that the proposed ICDEBOA algorithm meets the CRLB and achieves better performance than the CWLS, DE, and BOA algorithms.
PB  - MDPI, Basel, Switzerland
T2  - Applied Sciences
T1  - An Improved Chaos Driven Hybrid Differential Evolution and Butterfly Optimization Algorithm for Passive Target Localization Using TDOA Measurements
IS  - 2
VL  - 13
DO  - 10.3390/app13020684
ER  - 

@article{
author = "Rosić Vitas, Maja and Sedak, Miloš and Simić, Mirjana and Pejović, Predrag V.",
year = "2023",
abstract = "This paper addresses the problem of time difference of arrival (TDOA) based passive target localizationand proposes an improved chaos-driven hybrid differential evolution (DE) algorithm and butterfly optimization algorithm (BOA), named ICDEBOA, to solve this complex optimization problem. The proposed algorithm consists of a new mutation strategy with the mechanisms of the BOA algorithm incorporated into the DE algorithm. To boost optimization effectiveness, chaos theory is employed to adjust the control parameter values. The considered localization problem is formulated using the maximum likelihood estimator. To perform the accuracy comparison, the convex constrained weighting least squares algorithm is applied to the considered localization problem as the widely used method in literature. The statistical analysis shows that the proposed modifications to the ICDEBOA algorithm improve its optimization performance, as demonstrated by the improved performance on the CEC2014 benchmark problems. The ICDEBOA algorithm is also shown to be more robust than existing algorithms in noisy environments. Numerical simulation results show that the proposed ICDEBOA algorithm meets the CRLB and achieves better performance than the CWLS, DE, and BOA algorithms.",
publisher = "MDPI, Basel, Switzerland",
journal = "Applied Sciences",
title = "An Improved Chaos Driven Hybrid Differential Evolution and Butterfly Optimization Algorithm for Passive Target Localization Using TDOA Measurements",
number = "2",
volume = "13",
doi = "10.3390/app13020684"
}

Rosić Vitas, M., Sedak, M., Simić, M.,& Pejović, P. V.. (2023). An Improved Chaos Driven Hybrid Differential Evolution and Butterfly Optimization Algorithm for Passive Target Localization Using TDOA Measurements. in Applied Sciences
MDPI, Basel, Switzerland., 13(2).
https://doi.org/10.3390/app13020684

Rosić Vitas M, Sedak M, Simić M, Pejović PV. An Improved Chaos Driven Hybrid Differential Evolution and Butterfly Optimization Algorithm for Passive Target Localization Using TDOA Measurements. in Applied Sciences. 2023;13(2).
doi:10.3390/app13020684 .

Rosić Vitas, Maja, Sedak, Miloš, Simić, Mirjana, Pejović, Predrag V., "An Improved Chaos Driven Hybrid Differential Evolution and Butterfly Optimization Algorithm for Passive Target Localization Using TDOA Measurements" in Applied Sciences, 13, no. 2 (2023),
https://doi.org/10.3390/app13020684 . .

TY  - CONF
AU  - Lazović, Tatjana
AU  - Atanasovska, Ivana
AU  - Sedak, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7166
AB  - Every industrial product should be adapted and harmonized with existing or potential
needs in various areas of human activity. Basic sciences are followed by technical sciences, which
lead to product development, including engineering design and related activities. After completing
the engineering design, the product is manufactured using appropriate production technologies. Art,
particularly through industrial design, is more or less included in product development, depending
on the type of product. Last, but not least, the state and dynamics of product development are
influenced by the social and economic situation, as well as politics, which create an environment for
all these activities [1]. Otherwise, realized products significantly impact each of these areas of
society and civilization development. A product life-cycle includes the following main stages [1]:
1) Problem/Need/Market and Company Goals/Potential; 2) Product planning; 3) Design/ Development; 4) Parts production/Assembly/Testing; 5) Marketing/Sale; 6) Use/Maintenance and 7) Energy
recovery/Recycling/Disposal. The main steps of product design and development are:
1) Task setting; 2) Concept design/Synthesis; 3) Selection of shapes, dimensions and materials;
4) Analysis/Simulation/ Optimisation; 5) Corrections/Modifications and 6) Detailed drawings.In the
Architecture, Engineering, and Construction (AEC) industry, there is a concept known as Building
Information Modelling (BIM), which has undergone significant development over the past fifteen
years. It represents a modern approach to the design, documentation, delivery, and lifecycle
management of buildings by utilizing project databases in conjunction with object-based parametric
modelling [2]. The primary aim of this work is to propose a comprehensive methodology for
Machine Information Modelling (MIM) to the scientific community in the field of machine design.
It also seeks to initiate the development of a complex methodology tailored to all aspects of
machine design while incorporating valuable elements from BIM. Some certain aspects similar to
BIM principles are already present in machine design and manufacturing, though they have not
been systematized and standardized or unified, as they have in the AEC sector. Our current main
focus is on a multidimensional (nD) modelling approach to MIM. It is necessary to create a very
complex information system that would contain all the mentioned dimensions (or new ones that will
inevitably emerge with industrial development) and provide instructions for their incorporation into
the machine design. This is impossible without the application of modern information and
communication technologies (ICT), the utilization of powerful digital resources, and the integration
of artificial intelligence. Additionally, it is essential to include the process of standardization and the
publication of appropriate standards for the realization of n-dimensional design, similar to those for
BIM, as well as using the unique aspects of machine design, which lead to original MIM. The
number of dimensions is theoretically infinite. The greater the amount of information we
incorporate into a model, the more dimensions we can generate!
PB  - Trans Tech Publications Ltd, Switzerland
C3  - Book of Abstracts from 9th International Scientific Conference on Advances in Mechanical Engineering
T1  - A New Concept of n-Dimensional Machine Design
EP  - 58
SP  - 58
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7166
ER  - 

@conference{
author = "Lazović, Tatjana and Atanasovska, Ivana and Sedak, Miloš",
year = "2023",
abstract = "Every industrial product should be adapted and harmonized with existing or potential
needs in various areas of human activity. Basic sciences are followed by technical sciences, which
lead to product development, including engineering design and related activities. After completing
the engineering design, the product is manufactured using appropriate production technologies. Art,
particularly through industrial design, is more or less included in product development, depending
on the type of product. Last, but not least, the state and dynamics of product development are
influenced by the social and economic situation, as well as politics, which create an environment for
all these activities [1]. Otherwise, realized products significantly impact each of these areas of
society and civilization development. A product life-cycle includes the following main stages [1]:
1) Problem/Need/Market and Company Goals/Potential; 2) Product planning; 3) Design/ Development; 4) Parts production/Assembly/Testing; 5) Marketing/Sale; 6) Use/Maintenance and 7) Energy
recovery/Recycling/Disposal. The main steps of product design and development are:
1) Task setting; 2) Concept design/Synthesis; 3) Selection of shapes, dimensions and materials;
4) Analysis/Simulation/ Optimisation; 5) Corrections/Modifications and 6) Detailed drawings.In the
Architecture, Engineering, and Construction (AEC) industry, there is a concept known as Building
Information Modelling (BIM), which has undergone significant development over the past fifteen
years. It represents a modern approach to the design, documentation, delivery, and lifecycle
management of buildings by utilizing project databases in conjunction with object-based parametric
modelling [2]. The primary aim of this work is to propose a comprehensive methodology for
Machine Information Modelling (MIM) to the scientific community in the field of machine design.
It also seeks to initiate the development of a complex methodology tailored to all aspects of
machine design while incorporating valuable elements from BIM. Some certain aspects similar to
BIM principles are already present in machine design and manufacturing, though they have not
been systematized and standardized or unified, as they have in the AEC sector. Our current main
focus is on a multidimensional (nD) modelling approach to MIM. It is necessary to create a very
complex information system that would contain all the mentioned dimensions (or new ones that will
inevitably emerge with industrial development) and provide instructions for their incorporation into
the machine design. This is impossible without the application of modern information and
communication technologies (ICT), the utilization of powerful digital resources, and the integration
of artificial intelligence. Additionally, it is essential to include the process of standardization and the
publication of appropriate standards for the realization of n-dimensional design, similar to those for
BIM, as well as using the unique aspects of machine design, which lead to original MIM. The
number of dimensions is theoretically infinite. The greater the amount of information we
incorporate into a model, the more dimensions we can generate!",
publisher = "Trans Tech Publications Ltd, Switzerland",
journal = "Book of Abstracts from 9th International Scientific Conference on Advances in Mechanical Engineering",
title = "A New Concept of n-Dimensional Machine Design",
pages = "58-58",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7166"
}

Lazović, T., Atanasovska, I.,& Sedak, M.. (2023). A New Concept of n-Dimensional Machine Design. in Book of Abstracts from 9th International Scientific Conference on Advances in Mechanical Engineering
Trans Tech Publications Ltd, Switzerland., 58-58.
https://hdl.handle.net/21.15107/rcub_machinery_7166

Lazović T, Atanasovska I, Sedak M. A New Concept of n-Dimensional Machine Design. in Book of Abstracts from 9th International Scientific Conference on Advances in Mechanical Engineering. 2023;:58-58.
https://hdl.handle.net/21.15107/rcub_machinery_7166 .

Lazović, Tatjana, Atanasovska, Ivana, Sedak, Miloš, "A New Concept of n-Dimensional Machine Design" in Book of Abstracts from 9th International Scientific Conference on Advances in Mechanical Engineering (2023):58-58,
https://hdl.handle.net/21.15107/rcub_machinery_7166 .

TY  - CONF
AU  - Troha, Sanjin
AU  - Vrcan, Željko
AU  - Stefanović-Marinović, Jelena
AU  - Sedak, Miloš
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5458
AB  - A two-carrier planetary gear train (PGT) developed for a specific purpose is discussed in this paper. This PGT is suitable for applications which require negative transmission ratios in the range from -3 up to -143. The mechanical and dimensional characteristics of the planetary gear train for nominal negative transmission ratios of -30 and -40 have been considered. Many combinations of ideal torque ratios of the PGT were obtained for the mentioned transmission ratios, from which only the combinations providing the minimum radial dimensions of the planetary gear units were selected. It was found that the minimum radial dimensions of the PGT will be obtained when the ratio of the reference diameters of the planetary unit ring gears of is close to unity, i.e., when the PGT housing is cylindrical rather than stepped. An introduction to single speed two-carrier planetary gear trains is given, in addition to an overview of the application of the DVOBRZ software package used to synthesize different gearboxes for the required transmission ratio. Acceptable gearboxes were selected from all PGTs according to the criteria of minimum dimensions and acceptable efficiency, and their construction concepts were created.
PB  - UNIVERSITY OF BELGRADE Faculty of Mechanical Engineering Kraljice Marije 16, 11120 Beograd
C3  - 10th International Scientific Conference - IRMES 2022
T1  - Comparison of the size and efficiency of a two-carrier planetary gear train and kinematically equivalent planetary gear trains
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5458
ER  - 

@conference{
author = "Troha, Sanjin and Vrcan, Željko and Stefanović-Marinović, Jelena and Sedak, Miloš",
year = "2022",
abstract = "A two-carrier planetary gear train (PGT) developed for a specific purpose is discussed in this paper. This PGT is suitable for applications which require negative transmission ratios in the range from -3 up to -143. The mechanical and dimensional characteristics of the planetary gear train for nominal negative transmission ratios of -30 and -40 have been considered. Many combinations of ideal torque ratios of the PGT were obtained for the mentioned transmission ratios, from which only the combinations providing the minimum radial dimensions of the planetary gear units were selected. It was found that the minimum radial dimensions of the PGT will be obtained when the ratio of the reference diameters of the planetary unit ring gears of is close to unity, i.e., when the PGT housing is cylindrical rather than stepped. An introduction to single speed two-carrier planetary gear trains is given, in addition to an overview of the application of the DVOBRZ software package used to synthesize different gearboxes for the required transmission ratio. Acceptable gearboxes were selected from all PGTs according to the criteria of minimum dimensions and acceptable efficiency, and their construction concepts were created.",
publisher = "UNIVERSITY OF BELGRADE Faculty of Mechanical Engineering Kraljice Marije 16, 11120 Beograd",
journal = "10th International Scientific Conference - IRMES 2022",
title = "Comparison of the size and efficiency of a two-carrier planetary gear train and kinematically equivalent planetary gear trains",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5458"
}

Troha, S., Vrcan, Ž., Stefanović-Marinović, J.,& Sedak, M.. (2022). Comparison of the size and efficiency of a two-carrier planetary gear train and kinematically equivalent planetary gear trains. in 10th International Scientific Conference - IRMES 2022
UNIVERSITY OF BELGRADE Faculty of Mechanical Engineering Kraljice Marije 16, 11120 Beograd..
https://hdl.handle.net/21.15107/rcub_machinery_5458

Troha S, Vrcan Ž, Stefanović-Marinović J, Sedak M. Comparison of the size and efficiency of a two-carrier planetary gear train and kinematically equivalent planetary gear trains. in 10th International Scientific Conference - IRMES 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_5458 .

Troha, Sanjin, Vrcan, Željko, Stefanović-Marinović, Jelena, Sedak, Miloš, "Comparison of the size and efficiency of a two-carrier planetary gear train and kinematically equivalent planetary gear trains" in 10th International Scientific Conference - IRMES 2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_5458 .

TY  - CONF
AU  - Sedak, Miloš
AU  - Dimić, Aleksandar
AU  - Rosić, Božidar
AU  - Ristivojević, Mileta
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5367
AB  - In this paper, we have considered tip interference and radial interference of internal involute spur gears. Equations of tooth profiles are provided and operating constraints for internal gears are defined. The undercutting and interference of the teeth profiles are the main problems for the practical application of internal gears in planetary gear trains, which requires particular attention in the design of planetary gear trains. The problem of avoiding interference of internal involute spur gears is especially challenging. Therefore, it is necessary to create the corresponding geometric models and express the above requirements by the corresponding functional constraints to verify the engagement condition. The developed geometrical model of the tooth surfaces is most helpful in the analysis of meshing interference, contact, and stress analyzing, manufacturing, measuring, and optimizing internal gear sets. The numerical results are tested by computerized simulation of the meshing of internal involute spur gears.
PB  - UNIVERSITY OF BELGRADE Faculty of Mechanical Engineering
C3  - 10th International Scientific Conference - IRMES 2022
T1  - Interference analysis of internal involute spur gear pair
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5367
ER  - 

@conference{
author = "Sedak, Miloš and Dimić, Aleksandar and Rosić, Božidar and Ristivojević, Mileta",
year = "2022",
abstract = "In this paper, we have considered tip interference and radial interference of internal involute spur gears. Equations of tooth profiles are provided and operating constraints for internal gears are defined. The undercutting and interference of the teeth profiles are the main problems for the practical application of internal gears in planetary gear trains, which requires particular attention in the design of planetary gear trains. The problem of avoiding interference of internal involute spur gears is especially challenging. Therefore, it is necessary to create the corresponding geometric models and express the above requirements by the corresponding functional constraints to verify the engagement condition. The developed geometrical model of the tooth surfaces is most helpful in the analysis of meshing interference, contact, and stress analyzing, manufacturing, measuring, and optimizing internal gear sets. The numerical results are tested by computerized simulation of the meshing of internal involute spur gears.",
publisher = "UNIVERSITY OF BELGRADE Faculty of Mechanical Engineering",
journal = "10th International Scientific Conference - IRMES 2022",
title = "Interference analysis of internal involute spur gear pair",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5367"
}

Sedak, M., Dimić, A., Rosić, B.,& Ristivojević, M.. (2022). Interference analysis of internal involute spur gear pair. in 10th International Scientific Conference - IRMES 2022
UNIVERSITY OF BELGRADE Faculty of Mechanical Engineering..
https://hdl.handle.net/21.15107/rcub_machinery_5367

Sedak M, Dimić A, Rosić B, Ristivojević M. Interference analysis of internal involute spur gear pair. in 10th International Scientific Conference - IRMES 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_5367 .

Sedak, Miloš, Dimić, Aleksandar, Rosić, Božidar, Ristivojević, Mileta, "Interference analysis of internal involute spur gear pair" in 10th International Scientific Conference - IRMES 2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_5367 .

TY  - CONF
AU  - Sedak, Miloš
AU  - Rosić Vitas, Maja
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5481
AB  - This paper considers the problem of formulating the non-linear optimization model for determining the optimal parameters of planetary gearbox, which is solved using a metaheuristic optimization algorithm. To determine the optimal parameters of the planetary gearbox it is necessary to formulate complex objective functions and minimize them, which is often a conflicting problem. To solve this complex optimization problem, in this paper we propose to employ metaheuristic algorithms, which characterize pseudo-randomness and the ability to find the global optimal solution to the multimodal optimization problems. The proposed metaheuristic method is based on the Genetic Algorithm (GA) which is hybridized with the local-search Nelder-Mead method. For the considered optimization problem, the appropriate software is implemented in the MATLAB software package, to verify the results. Inside the considered optimization module, we have defined the appropriate objective functions and constraints which determine the construction of the planetary gearbox. The optimal parameters of the planetary gearbox obtained using the proposed metaheuristic algorithm are compared with the results obtained using several well-known algorithms in the literature. The simulation results of the proposed optimization method indicate a significant improvement in planetary gearbox performance compared to the parameters obtained with well-known algorithms.
C3  - 10th International Scientific Conference on Defensive Technologies OTEH 2022
T1  - Planetary gear pair design using metaheuristic algorithms
EP  - 91
SP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5481
ER  - 

@conference{
author = "Sedak, Miloš and Rosić Vitas, Maja",
year = "2022",
abstract = "This paper considers the problem of formulating the non-linear optimization model for determining the optimal parameters of planetary gearbox, which is solved using a metaheuristic optimization algorithm. To determine the optimal parameters of the planetary gearbox it is necessary to formulate complex objective functions and minimize them, which is often a conflicting problem. To solve this complex optimization problem, in this paper we propose to employ metaheuristic algorithms, which characterize pseudo-randomness and the ability to find the global optimal solution to the multimodal optimization problems. The proposed metaheuristic method is based on the Genetic Algorithm (GA) which is hybridized with the local-search Nelder-Mead method. For the considered optimization problem, the appropriate software is implemented in the MATLAB software package, to verify the results. Inside the considered optimization module, we have defined the appropriate objective functions and constraints which determine the construction of the planetary gearbox. The optimal parameters of the planetary gearbox obtained using the proposed metaheuristic algorithm are compared with the results obtained using several well-known algorithms in the literature. The simulation results of the proposed optimization method indicate a significant improvement in planetary gearbox performance compared to the parameters obtained with well-known algorithms.",
journal = "10th International Scientific Conference on Defensive Technologies OTEH 2022",
title = "Planetary gear pair design using metaheuristic algorithms",
pages = "91-86",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5481"
}

Sedak, M.,& Rosić Vitas, M.. (2022). Planetary gear pair design using metaheuristic algorithms. in 10th International Scientific Conference on Defensive Technologies OTEH 2022, 86-91.
https://hdl.handle.net/21.15107/rcub_machinery_5481

Sedak M, Rosić Vitas M. Planetary gear pair design using metaheuristic algorithms. in 10th International Scientific Conference on Defensive Technologies OTEH 2022. 2022;:86-91.
https://hdl.handle.net/21.15107/rcub_machinery_5481 .

Sedak, Miloš, Rosić Vitas, Maja, "Planetary gear pair design using metaheuristic algorithms" in 10th International Scientific Conference on Defensive Technologies OTEH 2022 (2022):86-91,
https://hdl.handle.net/21.15107/rcub_machinery_5481 .

TY  - CONF
AU  - Rosić Vitas, Maja
AU  - Sedak, Miloš
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5482
AB  - Accurate localization of target based on time difference of arrival (TDOA) measurements is of crucial importance in a large number of different military and civil applications, especially in security systems, radars, sonars etc. This paper focuses on the determining the position of a target from a set of TDOA measurements obtained on several receivers whose positions are known. The considered target localization problem is formulated as the optimization problem, where the corresponding objective function is obtained based on least squares (LS) method. Due to the complexity of the considered problem, the resulting objective function is highly nonlinear and multimodal. Therefore, to solve this complex optimization problem this paper proposes the hybridization of Genetic Algorithm (GA) with well-known Gauss-Newton (GN) method. The performance of considered hybrid algorithm is investigated and compared to well-known conventional optimization algorithms in solving the considered TDOA based localization problem. The simulation results of the proposed optimization method indicate a significant improvement in localization accuracy compared to well-known algorithms.
PB  - International Scientific Conference on Defensive Technologies (OTEH 2022)
C3  - 10th International Scientific Conference on Defensive Technologies OTEH 2022
T1  - TDOA based approach for accurate target localization based on hybrid genetic algorithm
EP  - 327
SP  - 321
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5482
ER  - 

@conference{
author = "Rosić Vitas, Maja and Sedak, Miloš",
year = "2022",
abstract = "Accurate localization of target based on time difference of arrival (TDOA) measurements is of crucial importance in a large number of different military and civil applications, especially in security systems, radars, sonars etc. This paper focuses on the determining the position of a target from a set of TDOA measurements obtained on several receivers whose positions are known. The considered target localization problem is formulated as the optimization problem, where the corresponding objective function is obtained based on least squares (LS) method. Due to the complexity of the considered problem, the resulting objective function is highly nonlinear and multimodal. Therefore, to solve this complex optimization problem this paper proposes the hybridization of Genetic Algorithm (GA) with well-known Gauss-Newton (GN) method. The performance of considered hybrid algorithm is investigated and compared to well-known conventional optimization algorithms in solving the considered TDOA based localization problem. The simulation results of the proposed optimization method indicate a significant improvement in localization accuracy compared to well-known algorithms.",
publisher = "International Scientific Conference on Defensive Technologies (OTEH 2022)",
journal = "10th International Scientific Conference on Defensive Technologies OTEH 2022",
title = "TDOA based approach for accurate target localization based on hybrid genetic algorithm",
pages = "327-321",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5482"
}

Rosić Vitas, M.,& Sedak, M.. (2022). TDOA based approach for accurate target localization based on hybrid genetic algorithm. in 10th International Scientific Conference on Defensive Technologies OTEH 2022
International Scientific Conference on Defensive Technologies (OTEH 2022)., 321-327.
https://hdl.handle.net/21.15107/rcub_machinery_5482

Rosić Vitas M, Sedak M. TDOA based approach for accurate target localization based on hybrid genetic algorithm. in 10th International Scientific Conference on Defensive Technologies OTEH 2022. 2022;:321-327.
https://hdl.handle.net/21.15107/rcub_machinery_5482 .

Rosić Vitas, Maja, Sedak, Miloš, "TDOA based approach for accurate target localization based on hybrid genetic algorithm" in 10th International Scientific Conference on Defensive Technologies OTEH 2022 (2022):321-327,
https://hdl.handle.net/21.15107/rcub_machinery_5482 .

TY  - JOUR
AU  - Rosić Vitas, Maja
AU  - Sedak, Miloš
AU  - Simić, Mirjana
AU  - Pejović, Predrag V.
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5365
AB  - This paper considers the problem of finding the position of a passive target using noisy time difference of arrival (TDOA) measurements, obtained from multiple transmitters and a single receiver. The maximum likelihood (ML) estimator’s objective function is extremely nonlinear and non-convex, making it impossible to use traditional optimization techniques. In this regard, this paper proposes the chaos-enhanced adaptive hybrid butterfly particle swarm optimization algorithm, named CAHBPSO, as the hybridization of butterfly optimization (BOA) and particle swarm optimization (PSO) algorithms, to estimate passive target position. In the proposed algorithm, an adaptive strategy is employed to update the sensory fragrance of BOA algorithm, and chaos theory is incorporated into the inertia weight of PSO algorithm. Furthermore, an adaptive switch probability is employed to combine global and local search phases of BOA with the PSO algorithm. Additionally, the semidefinite programming is employed to convert the considered problem into a convex one. The statistical comparison on CEC2014 benchmark problems shows that the proposed algorithm provides a better performance compared to well-known algorithms. The CAHBPSO method surpasses the BOA, PSO and semidefinite programming (SDP) algorithms for a broad spectrum of noise, according to simulation findings, and achieves the Cramer–Rao lower bound (CRLB).
PB  - MDPI, Basel, Switzerland
T2  - Sensors
T1  - Chaos-Enhanced Adaptive Hybrid Butterfly Particle Swarm Optimization Algorithm for Passive Target
IS  - 15
VL  - 22
DO  - doi.org/10.3390/s22155739
ER  - 

@article{
author = "Rosić Vitas, Maja and Sedak, Miloš and Simić, Mirjana and Pejović, Predrag V.",
year = "2022",
abstract = "This paper considers the problem of finding the position of a passive target using noisy time difference of arrival (TDOA) measurements, obtained from multiple transmitters and a single receiver. The maximum likelihood (ML) estimator’s objective function is extremely nonlinear and non-convex, making it impossible to use traditional optimization techniques. In this regard, this paper proposes the chaos-enhanced adaptive hybrid butterfly particle swarm optimization algorithm, named CAHBPSO, as the hybridization of butterfly optimization (BOA) and particle swarm optimization (PSO) algorithms, to estimate passive target position. In the proposed algorithm, an adaptive strategy is employed to update the sensory fragrance of BOA algorithm, and chaos theory is incorporated into the inertia weight of PSO algorithm. Furthermore, an adaptive switch probability is employed to combine global and local search phases of BOA with the PSO algorithm. Additionally, the semidefinite programming is employed to convert the considered problem into a convex one. The statistical comparison on CEC2014 benchmark problems shows that the proposed algorithm provides a better performance compared to well-known algorithms. The CAHBPSO method surpasses the BOA, PSO and semidefinite programming (SDP) algorithms for a broad spectrum of noise, according to simulation findings, and achieves the Cramer–Rao lower bound (CRLB).",
publisher = "MDPI, Basel, Switzerland",
journal = "Sensors",
title = "Chaos-Enhanced Adaptive Hybrid Butterfly Particle Swarm Optimization Algorithm for Passive Target",
number = "15",
volume = "22",
doi = "doi.org/10.3390/s22155739"
}

Rosić Vitas, M., Sedak, M., Simić, M.,& Pejović, P. V.. (2022). Chaos-Enhanced Adaptive Hybrid Butterfly Particle Swarm Optimization Algorithm for Passive Target. in Sensors
MDPI, Basel, Switzerland., 22(15).
https://doi.org/doi.org/10.3390/s22155739

Rosić Vitas M, Sedak M, Simić M, Pejović PV. Chaos-Enhanced Adaptive Hybrid Butterfly Particle Swarm Optimization Algorithm for Passive Target. in Sensors. 2022;22(15).
doi:doi.org/10.3390/s22155739 .

Rosić Vitas, Maja, Sedak, Miloš, Simić, Mirjana, Pejović, Predrag V., "Chaos-Enhanced Adaptive Hybrid Butterfly Particle Swarm Optimization Algorithm for Passive Target" in Sensors, 22, no. 15 (2022),
https://doi.org/doi.org/10.3390/s22155739 . .

TY  - THES
AU  - Sedak, Miloš
PY  - 2021
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=8315
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:24141/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48221193
UR  - https://nardus.mpn.gov.rs/handle/123456789/18588
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/85
AB  - Planetarni prenosnici spadaju u grupu mehaničkih zupčastih prenosnika, koji su široko zastupljeni za transformaciju i prenos snage prvenstveno zbog kompaktnosti konstrukcije, visoke pouzdanosti i stepena iskorišćenja. Polazeći od funkcije, koju treba da ispuni u okviru neke konstrukcije, kao i sve strožih zahteva u pogledu performansi prenosnika, predmet istraživanja ove doktorske disertacije je razvoj višekriterijumskog optimizacionog modela planetarnog prenosnika. Razvijeni modeli koji zadovoljavaju niz strogih zahteva u pogledu: kompaktnosti konstrukcije, minimizacije gubitaka u prenosu snage, ravnomernosti raspodele opterećenja, kao i pouzdanosti u različitim eksploatacionim uslovima. Za postavljeni problem višekriterijumske optimizacije planetarnog prenosnika formirane su odgovarajuće kriterijumske funkcije i definisan je niz funkcionalnih ograničenja, kao i odgovarajući domeni primene svih relevantnih veličina zupčastih parova sa spoljašnjim i unutrašnjim ozubljenjem i planetarnog prenosnika kao složenog sistema, u cilju nesmetane montaže, pouzdanog rada i sprezanja zupčastih parova. U okviru doktorske disertacije, razvijen je odgovarajući mehanički model za određivanje stepena iskorišćenja istovremeno spregnutih zupčastih parova, u zavisnosti od njihovih geometrijskih parametara, kao i od uslova podmazivanja. Kriterijumske funkcije formiranog višekriterijumskog optimizacionog problema su nelinearne i nekonveksne pa se globalno optimalno rešenje ne može numerički odrediti konvencionalnim metodama optimizacije. Prema tome, u cilju rešavanja ovog kompleksnog optimizacionog problema potrebno je primeniti metaheurističke optimizacione algoritme. Dakle, postoji stalna potreba za poboljšanjem postojećih i razvojem novih metaheurističkih algoritama i to razvojem adaptivnih tehnika za podešavanje upravljačkih parametara i hibridizacijom algoritama. U skladu sa tim, u okviru doktorske disertacije detaljno su razmatrani metaheuristički algoritmi, koji pripadaju grupi evolutivnih algoritama, kao što su algoritam diferencijalne evolucije (Differential Evolution, DE), genetski algoritam (Genetic Algorithm, GA) kao i algoritmi inspirisani biološkim sistemima u prirodi, i to algoritam optimizacije rojem čestica (Partical Swarm Optimization, PSO). U cilju otklanjanja nedostataka metaheurističkih algoritama koji se javljaju tokom optimizacionog procesa, algoritmi predloženi u okviru disertacije su modifikovani kroz: razvoj adaptivnih mehanizama za podešavanje vrednosti upravljačkih parametara, i hibridizaciju adekvatnih algoritama. U cilju formiranja efikasnog hibridnog algoritma, procesu hibridizacije je prethodila detaljna numerička simulacija i statistička analiza performansi razmatranih algoritama. Prema tome, hibridizacijom algoritama postignuto je adekvatno iskorišćenje prednosti jednog i istovremena eliminacija nedostataka drugog algoritma...
AB  - Planetary gearboxes have a wide application in the field of transformation and transmission of power from the drive to the working machine, due to the compact structure, high reliability and efficiency. Due to the increasingly stringent performance requirements, which planetary gearboxes must satisfy, the research in this dissertation is focused on the problem of multi-objective non-linear optimization of planetary gearbox based on hybrid metaheuristic algorithm, which satisfies a number of strict requirements, such as: compact construction, minimization of power loss, load distribution and reliability in different operating conditions. In this work the formulations of the objective functions for the considered multiobjective optimization problem of planetary gearbox have been outlined along with the appropriate constraints. The formulated constraints have been analyzed and appropriate domains of practical applications of internal and external gear pairs have been formulated, with the aim to ensure proper working, mounting and meshing of considered gears. Furthermore, the theoretical formulation and numerical procedure for the calculation of the planetary gearbox power efficiency has been developed in this work. However, the objective functions and developed constraints of the considered Multiobjective planetary gearbox optimization problem are nonlinear and multimodal functions, and therefore the global optimal solution cannot be obtained using the conventional optimization methods. Therefore, in order to solve this multiobjective and complex optimization problem, the research in this dissertation is focused on metaheuristic optimization algorithms, which belong to the group of evolutionary algorithms, including: differential evolution algorithm and genetic algorithm, as well as the algorithms inspired by the biological systems, such as particle swarm optimization algorithm. To overcome difficulties in solving complex optimization problems, in this thesis the considered algorithms are modified with the development of adaptive techniques for setting the values of control parameters and hybridization of algorithms. In order to create an effective hybrid algorithm, the hybridization process has been preceded by extensive numerical simulations and statistical analysis of advantages and disadvantages of each algorithm. Therefore, the proposed hybridization of algorithms and introduction of adaptive control parameters can successfully combine the advantages and avoid disadvantages of each algorithm. In this way, the proposed modifications successfully combine the advantages of each algorithm and avoid their disadvantages, thus significantly expanding the scale of implementation of the proposed algorithms for complex optimization problems...
PB  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Višekriterijumska optimizacija planetarnih prenosnika adaptivnim hibridnim metaheurističkim algoritmima
T1  - Multi-objective optimization of planetary gearboxes based on adaptive hybrid metaheuristic algorithms
UR  - https://hdl.handle.net/21.15107/rcub_nardus_18588
ER  - 

@phdthesis{
author = "Sedak, Miloš",
year = "2021",
abstract = "Planetarni prenosnici spadaju u grupu mehaničkih zupčastih prenosnika, koji su široko zastupljeni za transformaciju i prenos snage prvenstveno zbog kompaktnosti konstrukcije, visoke pouzdanosti i stepena iskorišćenja. Polazeći od funkcije, koju treba da ispuni u okviru neke konstrukcije, kao i sve strožih zahteva u pogledu performansi prenosnika, predmet istraživanja ove doktorske disertacije je razvoj višekriterijumskog optimizacionog modela planetarnog prenosnika. Razvijeni modeli koji zadovoljavaju niz strogih zahteva u pogledu: kompaktnosti konstrukcije, minimizacije gubitaka u prenosu snage, ravnomernosti raspodele opterećenja, kao i pouzdanosti u različitim eksploatacionim uslovima. Za postavljeni problem višekriterijumske optimizacije planetarnog prenosnika formirane su odgovarajuće kriterijumske funkcije i definisan je niz funkcionalnih ograničenja, kao i odgovarajući domeni primene svih relevantnih veličina zupčastih parova sa spoljašnjim i unutrašnjim ozubljenjem i planetarnog prenosnika kao složenog sistema, u cilju nesmetane montaže, pouzdanog rada i sprezanja zupčastih parova. U okviru doktorske disertacije, razvijen je odgovarajući mehanički model za određivanje stepena iskorišćenja istovremeno spregnutih zupčastih parova, u zavisnosti od njihovih geometrijskih parametara, kao i od uslova podmazivanja. Kriterijumske funkcije formiranog višekriterijumskog optimizacionog problema su nelinearne i nekonveksne pa se globalno optimalno rešenje ne može numerički odrediti konvencionalnim metodama optimizacije. Prema tome, u cilju rešavanja ovog kompleksnog optimizacionog problema potrebno je primeniti metaheurističke optimizacione algoritme. Dakle, postoji stalna potreba za poboljšanjem postojećih i razvojem novih metaheurističkih algoritama i to razvojem adaptivnih tehnika za podešavanje upravljačkih parametara i hibridizacijom algoritama. U skladu sa tim, u okviru doktorske disertacije detaljno su razmatrani metaheuristički algoritmi, koji pripadaju grupi evolutivnih algoritama, kao što su algoritam diferencijalne evolucije (Differential Evolution, DE), genetski algoritam (Genetic Algorithm, GA) kao i algoritmi inspirisani biološkim sistemima u prirodi, i to algoritam optimizacije rojem čestica (Partical Swarm Optimization, PSO). U cilju otklanjanja nedostataka metaheurističkih algoritama koji se javljaju tokom optimizacionog procesa, algoritmi predloženi u okviru disertacije su modifikovani kroz: razvoj adaptivnih mehanizama za podešavanje vrednosti upravljačkih parametara, i hibridizaciju adekvatnih algoritama. U cilju formiranja efikasnog hibridnog algoritma, procesu hibridizacije je prethodila detaljna numerička simulacija i statistička analiza performansi razmatranih algoritama. Prema tome, hibridizacijom algoritama postignuto je adekvatno iskorišćenje prednosti jednog i istovremena eliminacija nedostataka drugog algoritma..., Planetary gearboxes have a wide application in the field of transformation and transmission of power from the drive to the working machine, due to the compact structure, high reliability and efficiency. Due to the increasingly stringent performance requirements, which planetary gearboxes must satisfy, the research in this dissertation is focused on the problem of multi-objective non-linear optimization of planetary gearbox based on hybrid metaheuristic algorithm, which satisfies a number of strict requirements, such as: compact construction, minimization of power loss, load distribution and reliability in different operating conditions. In this work the formulations of the objective functions for the considered multiobjective optimization problem of planetary gearbox have been outlined along with the appropriate constraints. The formulated constraints have been analyzed and appropriate domains of practical applications of internal and external gear pairs have been formulated, with the aim to ensure proper working, mounting and meshing of considered gears. Furthermore, the theoretical formulation and numerical procedure for the calculation of the planetary gearbox power efficiency has been developed in this work. However, the objective functions and developed constraints of the considered Multiobjective planetary gearbox optimization problem are nonlinear and multimodal functions, and therefore the global optimal solution cannot be obtained using the conventional optimization methods. Therefore, in order to solve this multiobjective and complex optimization problem, the research in this dissertation is focused on metaheuristic optimization algorithms, which belong to the group of evolutionary algorithms, including: differential evolution algorithm and genetic algorithm, as well as the algorithms inspired by the biological systems, such as particle swarm optimization algorithm. To overcome difficulties in solving complex optimization problems, in this thesis the considered algorithms are modified with the development of adaptive techniques for setting the values of control parameters and hybridization of algorithms. In order to create an effective hybrid algorithm, the hybridization process has been preceded by extensive numerical simulations and statistical analysis of advantages and disadvantages of each algorithm. Therefore, the proposed hybridization of algorithms and introduction of adaptive control parameters can successfully combine the advantages and avoid disadvantages of each algorithm. In this way, the proposed modifications successfully combine the advantages of each algorithm and avoid their disadvantages, thus significantly expanding the scale of implementation of the proposed algorithms for complex optimization problems...",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Višekriterijumska optimizacija planetarnih prenosnika adaptivnim hibridnim metaheurističkim algoritmima, Multi-objective optimization of planetary gearboxes based on adaptive hybrid metaheuristic algorithms",
url = "https://hdl.handle.net/21.15107/rcub_nardus_18588"
}

Sedak, M.. (2021). Višekriterijumska optimizacija planetarnih prenosnika adaptivnim hibridnim metaheurističkim algoritmima. 
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_18588

Sedak M. Višekriterijumska optimizacija planetarnih prenosnika adaptivnim hibridnim metaheurističkim algoritmima. 2021;.
https://hdl.handle.net/21.15107/rcub_nardus_18588 .

Sedak, Miloš, "Višekriterijumska optimizacija planetarnih prenosnika adaptivnim hibridnim metaheurističkim algoritmima" (2021),
https://hdl.handle.net/21.15107/rcub_nardus_18588 .

TY  - JOUR
AU  - Sedak, Miloš
AU  - Rosić, Božidar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3617
AB  - This paper considers the problem of constrained multi-objective non-linear optimization of planetary gearbox based on hybrid metaheuristic algorithm. Optimal design of planetary gear trains requires simultaneous minimization of multiple conflicting objectives, such as gearbox volume, center distance, contact ratio, power loss, etc. In this regard, the theoretical formulation and numerical procedure for the calculation of the planetary gearbox power efficiency has been developed. To successfully solve the stated constrained multi-objective optimization problem, in this paper a hybrid algorithm between particle swarm optimization and differential evolution algorithms has been proposed and applied to considered problem. Here, the mutation operators from the differential evolution algorithm have been incorporated into the velocity update equation of the particle swarm optimization algorithm, with the adaptive population spacing parameter employed to select the appropriate mutation operator for the current optimization condition. It has been shown that the proposed algorithm successfully obtains the solutions of the non-convex Pareto set, and reveals key insights in reducing the weight, improving efficiency and preventing premature failure of gears. Compared to other well-known algorithms, the numerical simulation results indicate that the proposed algorithm shows improved optimization performance in terms of the quality of the obtained Pareto solutions.
PB  - MDPI, Basel
T2  - Applied Sciences-Basel
T1  - Multi-Objective Optimization of Planetary Gearbox with Adaptive Hybrid Particle Swarm Differential Evolution Algorithm
IS  - 3
VL  - 11
DO  - 10.3390/app11031107
ER  - 

@article{
author = "Sedak, Miloš and Rosić, Božidar",
year = "2021",
abstract = "This paper considers the problem of constrained multi-objective non-linear optimization of planetary gearbox based on hybrid metaheuristic algorithm. Optimal design of planetary gear trains requires simultaneous minimization of multiple conflicting objectives, such as gearbox volume, center distance, contact ratio, power loss, etc. In this regard, the theoretical formulation and numerical procedure for the calculation of the planetary gearbox power efficiency has been developed. To successfully solve the stated constrained multi-objective optimization problem, in this paper a hybrid algorithm between particle swarm optimization and differential evolution algorithms has been proposed and applied to considered problem. Here, the mutation operators from the differential evolution algorithm have been incorporated into the velocity update equation of the particle swarm optimization algorithm, with the adaptive population spacing parameter employed to select the appropriate mutation operator for the current optimization condition. It has been shown that the proposed algorithm successfully obtains the solutions of the non-convex Pareto set, and reveals key insights in reducing the weight, improving efficiency and preventing premature failure of gears. Compared to other well-known algorithms, the numerical simulation results indicate that the proposed algorithm shows improved optimization performance in terms of the quality of the obtained Pareto solutions.",
publisher = "MDPI, Basel",
journal = "Applied Sciences-Basel",
title = "Multi-Objective Optimization of Planetary Gearbox with Adaptive Hybrid Particle Swarm Differential Evolution Algorithm",
number = "3",
volume = "11",
doi = "10.3390/app11031107"
}

Sedak, M.,& Rosić, B.. (2021). Multi-Objective Optimization of Planetary Gearbox with Adaptive Hybrid Particle Swarm Differential Evolution Algorithm. in Applied Sciences-Basel
MDPI, Basel., 11(3).
https://doi.org/10.3390/app11031107

Sedak M, Rosić B. Multi-Objective Optimization of Planetary Gearbox with Adaptive Hybrid Particle Swarm Differential Evolution Algorithm. in Applied Sciences-Basel. 2021;11(3).
doi:10.3390/app11031107 .

Sedak, Miloš, Rosić, Božidar, "Multi-Objective Optimization of Planetary Gearbox with Adaptive Hybrid Particle Swarm Differential Evolution Algorithm" in Applied Sciences-Basel, 11, no. 3 (2021),
https://doi.org/10.3390/app11031107 . .

TY  - CONF
AU  - Marinković, Aleksandar
AU  - Lazović, Tatjana
AU  - Sedak, Miloš
AU  - Šumarac, Milana
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6889
PB  - The Austrian Tribology Society
C3  - Book of Abstracts of 7th European Conference on Tribology ECOTRIB 2019, 12-14 June, Wien, Austria
T1  - Optimization methods in machine design as an advanced tool for tribology
EP  - 122
SP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6889
ER  - 

@conference{
author = "Marinković, Aleksandar and Lazović, Tatjana and Sedak, Miloš and Šumarac, Milana",
year = "2019",
publisher = "The Austrian Tribology Society",
journal = "Book of Abstracts of 7th European Conference on Tribology ECOTRIB 2019, 12-14 June, Wien, Austria",
title = "Optimization methods in machine design as an advanced tool for tribology",
pages = "122-121",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6889"
}

Marinković, A., Lazović, T., Sedak, M.,& Šumarac, M.. (2019). Optimization methods in machine design as an advanced tool for tribology. in Book of Abstracts of 7th European Conference on Tribology ECOTRIB 2019, 12-14 June, Wien, Austria
The Austrian Tribology Society., 121-122.
https://hdl.handle.net/21.15107/rcub_machinery_6889

Marinković A, Lazović T, Sedak M, Šumarac M. Optimization methods in machine design as an advanced tool for tribology. in Book of Abstracts of 7th European Conference on Tribology ECOTRIB 2019, 12-14 June, Wien, Austria. 2019;:121-122.
https://hdl.handle.net/21.15107/rcub_machinery_6889 .

Marinković, Aleksandar, Lazović, Tatjana, Sedak, Miloš, Šumarac, Milana, "Optimization methods in machine design as an advanced tool for tribology" in Book of Abstracts of 7th European Conference on Tribology ECOTRIB 2019, 12-14 June, Wien, Austria (2019):121-122,
https://hdl.handle.net/21.15107/rcub_machinery_6889 .

TY  - JOUR
AU  - Ristivojević, Mileta
AU  - Mitrović, Radivoje
AU  - Rosić, Božidar
AU  - Dimić, Aleksandar
AU  - Mišković, Žarko
AU  - Stamenić, Zoran
AU  - Sedak, Miloš
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2760
AB  - Application of typization in the process of designing mechanical sub-assemblies and assemblies is one of the ways to reduce the cost of production. Therefore, nowadays, not only roller bearings, bolts, wedges, etc. are produced as standard machine elements but, by the usage of typization, a production of a large series of typified subassemblies and assemblies, such as electric motors, pumps, power transmissions, etc., is increasing. Increased application of typified parts, sub-assemblies and assemblies in mechanical systems requires an increase in their safety and reliability during operation. Accordingly, in this paper, the load capacity of the typified machine parts series from the aspect of their structural strength is analyzed. It has been shown that there is a scattering of calculated results of the safety factor of members of the typified series from the aspect of the structural strength. The paper presents a proposal for a calculation methodology by which the mentioned scattering of the results of load capacity of typified machine parts series can be significantly reduced.
PB  - Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad
T2  - Machine Design
T1  - Typified machine parts series load capacity analysis from aspect of structural strength
EP  - 36
IS  - 2
SP  - 31
VL  - 10
DO  - 10.24867/MD.10.2018.2.31-36
ER  - 

@article{
author = "Ristivojević, Mileta and Mitrović, Radivoje and Rosić, Božidar and Dimić, Aleksandar and Mišković, Žarko and Stamenić, Zoran and Sedak, Miloš",
year = "2018",
abstract = "Application of typization in the process of designing mechanical sub-assemblies and assemblies is one of the ways to reduce the cost of production. Therefore, nowadays, not only roller bearings, bolts, wedges, etc. are produced as standard machine elements but, by the usage of typization, a production of a large series of typified subassemblies and assemblies, such as electric motors, pumps, power transmissions, etc., is increasing. Increased application of typified parts, sub-assemblies and assemblies in mechanical systems requires an increase in their safety and reliability during operation. Accordingly, in this paper, the load capacity of the typified machine parts series from the aspect of their structural strength is analyzed. It has been shown that there is a scattering of calculated results of the safety factor of members of the typified series from the aspect of the structural strength. The paper presents a proposal for a calculation methodology by which the mentioned scattering of the results of load capacity of typified machine parts series can be significantly reduced.",
publisher = "Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad",
journal = "Machine Design",
title = "Typified machine parts series load capacity analysis from aspect of structural strength",
pages = "36-31",
number = "2",
volume = "10",
doi = "10.24867/MD.10.2018.2.31-36"
}

Ristivojević, M., Mitrović, R., Rosić, B., Dimić, A., Mišković, Ž., Stamenić, Z.,& Sedak, M.. (2018). Typified machine parts series load capacity analysis from aspect of structural strength. in Machine Design
Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad., 10(2), 31-36.
https://doi.org/10.24867/MD.10.2018.2.31-36

Ristivojević M, Mitrović R, Rosić B, Dimić A, Mišković Ž, Stamenić Z, Sedak M. Typified machine parts series load capacity analysis from aspect of structural strength. in Machine Design. 2018;10(2):31-36.
doi:10.24867/MD.10.2018.2.31-36 .

Ristivojević, Mileta, Mitrović, Radivoje, Rosić, Božidar, Dimić, Aleksandar, Mišković, Žarko, Stamenić, Zoran, Sedak, Miloš, "Typified machine parts series load capacity analysis from aspect of structural strength" in Machine Design, 10, no. 2 (2018):31-36,
https://doi.org/10.24867/MD.10.2018.2.31-36 . .

TY  - JOUR
AU  - Sedak, Miloš
AU  - Rosić, Božidar
AU  - Ristivojević, Mileta
AU  - Mitrović, Radivoje
AU  - Dimić, Aleksandar
AU  - Mišković, Žarko
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2764
AB  - By kinematic combinations of toothed pairs with external and internal contacts, we can obtain planetary gears with a considerably improved performance than the corresponding ones with fixed axes, as well as planetary gears with notably poor performance regarding the efficiency. In regard to that, the reference literature and papers almost regularly emphasize that planetary gears, under the same technical conditions, have a smaller mass and a higher degree of efficiency than the ones with fixed axes. The main aim of this paper is to examine the above statement and to determine the scope of the gear ratios in which the planetary gears are more suitable than the fixed axes gears.
PB  - Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad
T2  - Machine Design
T1  - Efficiency analysis of planetary gears
EP  - 142
IS  - 4
SP  - 139
VL  - 10
DO  - 10.24867/MD.10.2018.4.139-142
ER  - 

@article{
author = "Sedak, Miloš and Rosić, Božidar and Ristivojević, Mileta and Mitrović, Radivoje and Dimić, Aleksandar and Mišković, Žarko",
year = "2018",
abstract = "By kinematic combinations of toothed pairs with external and internal contacts, we can obtain planetary gears with a considerably improved performance than the corresponding ones with fixed axes, as well as planetary gears with notably poor performance regarding the efficiency. In regard to that, the reference literature and papers almost regularly emphasize that planetary gears, under the same technical conditions, have a smaller mass and a higher degree of efficiency than the ones with fixed axes. The main aim of this paper is to examine the above statement and to determine the scope of the gear ratios in which the planetary gears are more suitable than the fixed axes gears.",
publisher = "Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad",
journal = "Machine Design",
title = "Efficiency analysis of planetary gears",
pages = "142-139",
number = "4",
volume = "10",
doi = "10.24867/MD.10.2018.4.139-142"
}

Sedak, M., Rosić, B., Ristivojević, M., Mitrović, R., Dimić, A.,& Mišković, Ž.. (2018). Efficiency analysis of planetary gears. in Machine Design
Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad., 10(4), 139-142.
https://doi.org/10.24867/MD.10.2018.4.139-142

Sedak M, Rosić B, Ristivojević M, Mitrović R, Dimić A, Mišković Ž. Efficiency analysis of planetary gears. in Machine Design. 2018;10(4):139-142.
doi:10.24867/MD.10.2018.4.139-142 .

Sedak, Miloš, Rosić, Božidar, Ristivojević, Mileta, Mitrović, Radivoje, Dimić, Aleksandar, Mišković, Žarko, "Efficiency analysis of planetary gears" in Machine Design, 10, no. 4 (2018):139-142,
https://doi.org/10.24867/MD.10.2018.4.139-142 . .

TY  - CONF
AU  - Buzurović, Ivan M.
AU  - Debeljković, Dragutin Lj.
AU  - Sedak, Miloš
AU  - Radojević, Darko
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2986
AB  - This paper provides novel additional sufficient conditions for finite-time stability of the linear continuous singular time delay systems. A novel method was used to derive new delay dependent conditions. The stability of the system was analyzed using both the Lyapunov-like approach and the Jensen's and Coppel's inequality, including the convolution of delayed states. The derived conditions were applied in the system stability analysis. As a result of these, the aggregation functional did not have to be positive in the state space domain and did not need to have the negative derivatives along the system trajectories. Finite-time stability was analyzed using the novel conditions derived in this paper, which guarantees that the states of the systems do not exceed the predefined boundaries over a finite-time interval.
PB  - Institute of Electrical and Electronics Engineers Inc.
C3  - Proceedings of the 2017 12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017
T1  - Further Results on Finite-time Stability of Continuous Singular Time Delay Systems
EP  - 1545
SP  - 1540
VL  - 2018-February
DO  - 10.1109/ICIEA.2017.8283083
ER  - 

@conference{
author = "Buzurović, Ivan M. and Debeljković, Dragutin Lj. and Sedak, Miloš and Radojević, Darko",
year = "2018",
abstract = "This paper provides novel additional sufficient conditions for finite-time stability of the linear continuous singular time delay systems. A novel method was used to derive new delay dependent conditions. The stability of the system was analyzed using both the Lyapunov-like approach and the Jensen's and Coppel's inequality, including the convolution of delayed states. The derived conditions were applied in the system stability analysis. As a result of these, the aggregation functional did not have to be positive in the state space domain and did not need to have the negative derivatives along the system trajectories. Finite-time stability was analyzed using the novel conditions derived in this paper, which guarantees that the states of the systems do not exceed the predefined boundaries over a finite-time interval.",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
journal = "Proceedings of the 2017 12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017",
title = "Further Results on Finite-time Stability of Continuous Singular Time Delay Systems",
pages = "1545-1540",
volume = "2018-February",
doi = "10.1109/ICIEA.2017.8283083"
}

Buzurović, I. M., Debeljković, D. Lj., Sedak, M.,& Radojević, D.. (2018). Further Results on Finite-time Stability of Continuous Singular Time Delay Systems. in Proceedings of the 2017 12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017
Institute of Electrical and Electronics Engineers Inc.., 2018-February, 1540-1545.
https://doi.org/10.1109/ICIEA.2017.8283083

Buzurović IM, Debeljković DL, Sedak M, Radojević D. Further Results on Finite-time Stability of Continuous Singular Time Delay Systems. in Proceedings of the 2017 12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017. 2018;2018-February:1540-1545.
doi:10.1109/ICIEA.2017.8283083 .

Buzurović, Ivan M., Debeljković, Dragutin Lj., Sedak, Miloš, Radojević, Darko, "Further Results on Finite-time Stability of Continuous Singular Time Delay Systems" in Proceedings of the 2017 12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017, 2018-February (2018):1540-1545,
https://doi.org/10.1109/ICIEA.2017.8283083 . .

TY  - CONF
AU  - Sedak, Miloš
AU  - Rosić, Božidar
AU  - Ristivojević, Mileta
AU  - Mitrović, Radivoje
AU  - Dimić, Aleksandar
AU  - Mišković, Žarko
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5358
AB  - Planetary gears, obtained by the kinematic combinations of toothed pairs with external and internal contacts, are able to provide considerably improved performance compared to the gear pairs with fixed axes, however if not properly designed they can exhibit poor performance regarding gear efficiency. In this regard, and given the fact that majority of research paper concerning this topic emphasize that planetary gears have generally better weight-to-power ratio and improved efficiency compared to the gear pairs with fixed axes, this paper examines the above statements. The main aim is to determine the domain of feasible gear ratios for which the planetary gear sets exhibit better performance, in terms of efficiency and weight-to-power density, than the classical fixed axes gears. In this work, the model of instantaneous gear efficiency is presented and applied to study the efficiency of both standard and high contact ratio involute spur gears. Approximate expressions for the friction power losses and for the efficiency are presented assuming the friction coefficient is changeable along the path of contact.
C3  - International Scientific Conference on Defensive Technologies (OTEH 2018)
T1  - Analysis of the efficiency of the planetary gear sets
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5358
ER  - 

@conference{
author = "Sedak, Miloš and Rosić, Božidar and Ristivojević, Mileta and Mitrović, Radivoje and Dimić, Aleksandar and Mišković, Žarko",
year = "2018",
abstract = "Planetary gears, obtained by the kinematic combinations of toothed pairs with external and internal contacts, are able to provide considerably improved performance compared to the gear pairs with fixed axes, however if not properly designed they can exhibit poor performance regarding gear efficiency. In this regard, and given the fact that majority of research paper concerning this topic emphasize that planetary gears have generally better weight-to-power ratio and improved efficiency compared to the gear pairs with fixed axes, this paper examines the above statements. The main aim is to determine the domain of feasible gear ratios for which the planetary gear sets exhibit better performance, in terms of efficiency and weight-to-power density, than the classical fixed axes gears. In this work, the model of instantaneous gear efficiency is presented and applied to study the efficiency of both standard and high contact ratio involute spur gears. Approximate expressions for the friction power losses and for the efficiency are presented assuming the friction coefficient is changeable along the path of contact.",
journal = "International Scientific Conference on Defensive Technologies (OTEH 2018)",
title = "Analysis of the efficiency of the planetary gear sets",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5358"
}

Sedak, M., Rosić, B., Ristivojević, M., Mitrović, R., Dimić, A.,& Mišković, Ž.. (2018). Analysis of the efficiency of the planetary gear sets. in International Scientific Conference on Defensive Technologies (OTEH 2018).
https://hdl.handle.net/21.15107/rcub_machinery_5358

Sedak M, Rosić B, Ristivojević M, Mitrović R, Dimić A, Mišković Ž. Analysis of the efficiency of the planetary gear sets. in International Scientific Conference on Defensive Technologies (OTEH 2018). 2018;.
https://hdl.handle.net/21.15107/rcub_machinery_5358 .

Sedak, Miloš, Rosić, Božidar, Ristivojević, Mileta, Mitrović, Radivoje, Dimić, Aleksandar, Mišković, Žarko, "Analysis of the efficiency of the planetary gear sets" in International Scientific Conference on Defensive Technologies (OTEH 2018) (2018),
https://hdl.handle.net/21.15107/rcub_machinery_5358 .

TY  - CONF
AU  - Buzurović, Ivan M.
AU  - Debeljković, Dragutin Lj.
AU  - Sedak, Miloš
AU  - Radojević, Darko
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2700
AB  - This paper provides sufficient conditions for the finite time stability of linear time invariant discrete descriptor time delay systems, mathematically described as Ex(k+1) = A(0)x(k) + A(1)x(t-h). A novel method was used to derive new delay dependent conditions. Stability of the system was analyzed using both the Lyapunov-like approach and the Jensen's inequality, including convolution of delayed states. The established conditions were applied to analysis of the system stability. In this case, the aggregation functional does not have to be positive in the state space domain and does not need to have the negative derivatives along the system trajectories. The system stability conditions were applicable to investigation of the finite time stability using the novel conditions proposed in this paper. This mathematical formulation guaranteed that the states of the systems do not exceed the predefined boundaries over a finite time interval.
PB  - Institute of Electrical and Electronics Engineers Inc.
C3  - 2016 14th International Conference on Control, Automation, Robotics and Vision, ICARCV 2016
T1  - Finite-Time Stability Analysis of Descriptor Discrete Time-Delay Systems Using Discrete Convolution of Delayed States
DO  - 10.1109/ICARCV.2016.7838794
ER  - 

@conference{
author = "Buzurović, Ivan M. and Debeljković, Dragutin Lj. and Sedak, Miloš and Radojević, Darko",
year = "2017",
abstract = "This paper provides sufficient conditions for the finite time stability of linear time invariant discrete descriptor time delay systems, mathematically described as Ex(k+1) = A(0)x(k) + A(1)x(t-h). A novel method was used to derive new delay dependent conditions. Stability of the system was analyzed using both the Lyapunov-like approach and the Jensen's inequality, including convolution of delayed states. The established conditions were applied to analysis of the system stability. In this case, the aggregation functional does not have to be positive in the state space domain and does not need to have the negative derivatives along the system trajectories. The system stability conditions were applicable to investigation of the finite time stability using the novel conditions proposed in this paper. This mathematical formulation guaranteed that the states of the systems do not exceed the predefined boundaries over a finite time interval.",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
journal = "2016 14th International Conference on Control, Automation, Robotics and Vision, ICARCV 2016",
title = "Finite-Time Stability Analysis of Descriptor Discrete Time-Delay Systems Using Discrete Convolution of Delayed States",
doi = "10.1109/ICARCV.2016.7838794"
}

Buzurović, I. M., Debeljković, D. Lj., Sedak, M.,& Radojević, D.. (2017). Finite-Time Stability Analysis of Descriptor Discrete Time-Delay Systems Using Discrete Convolution of Delayed States. in 2016 14th International Conference on Control, Automation, Robotics and Vision, ICARCV 2016
Institute of Electrical and Electronics Engineers Inc...
https://doi.org/10.1109/ICARCV.2016.7838794

Buzurović IM, Debeljković DL, Sedak M, Radojević D. Finite-Time Stability Analysis of Descriptor Discrete Time-Delay Systems Using Discrete Convolution of Delayed States. in 2016 14th International Conference on Control, Automation, Robotics and Vision, ICARCV 2016. 2017;.
doi:10.1109/ICARCV.2016.7838794 .

Buzurović, Ivan M., Debeljković, Dragutin Lj., Sedak, Miloš, Radojević, Darko, "Finite-Time Stability Analysis of Descriptor Discrete Time-Delay Systems Using Discrete Convolution of Delayed States" in 2016 14th International Conference on Control, Automation, Robotics and Vision, ICARCV 2016 (2017),
https://doi.org/10.1109/ICARCV.2016.7838794 . .

TY  - CONF
AU  - Sedak, Miloš
AU  - Lazović, Tatjana
AU  - Rosić, Božidar
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5548
AB  - Planetary gears take a very significant place among the gear transmissions, and they are widely used in military and civil industry applications such as marine vehicles, aircraft engines, helicopters and heavy machinery. Planetary gears are complex mechanisms which can be decomposed into external and internal gears with the corresponding interaction, which requires geometrical conditions in order to perform the mounting and an appropriate meshing of the gears during their work. Planetary gears have a number of advantages as compared to the transmission with fixed shafts such as a compact design, with co-axial shafts, high power density and higher efficiency, which is achieved by reducing gear weight using thin-rimed gears. The purpose of this paper is to present the optimization model for the planetary gears, where the objective function is the weight of gears, and functional constraints imposed upon their respective structural design. Hence, the objective is to minimize rim thickness of the gear in order to achieve high-performance power transmission and minimize weight. This paper presents the results of an investigation with finite element analysis (FEM) into the effects of thin-rimmed gear geometry on the root fillet stress distribution.
PB  - International Scientific Conference on Defensive Technologies (OTEH 2016)
C3  - International Scientific Conference on Defensive Technologies (OTEH 2016)
T1  - Optimization of planetary gears and effects of thin-rimed gear on fillet stress
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5548
ER  - 

@conference{
author = "Sedak, Miloš and Lazović, Tatjana and Rosić, Božidar",
year = "2016",
abstract = "Planetary gears take a very significant place among the gear transmissions, and they are widely used in military and civil industry applications such as marine vehicles, aircraft engines, helicopters and heavy machinery. Planetary gears are complex mechanisms which can be decomposed into external and internal gears with the corresponding interaction, which requires geometrical conditions in order to perform the mounting and an appropriate meshing of the gears during their work. Planetary gears have a number of advantages as compared to the transmission with fixed shafts such as a compact design, with co-axial shafts, high power density and higher efficiency, which is achieved by reducing gear weight using thin-rimed gears. The purpose of this paper is to present the optimization model for the planetary gears, where the objective function is the weight of gears, and functional constraints imposed upon their respective structural design. Hence, the objective is to minimize rim thickness of the gear in order to achieve high-performance power transmission and minimize weight. This paper presents the results of an investigation with finite element analysis (FEM) into the effects of thin-rimmed gear geometry on the root fillet stress distribution.",
publisher = "International Scientific Conference on Defensive Technologies (OTEH 2016)",
journal = "International Scientific Conference on Defensive Technologies (OTEH 2016)",
title = "Optimization of planetary gears and effects of thin-rimed gear on fillet stress",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5548"
}

Sedak, M., Lazović, T.,& Rosić, B.. (2016). Optimization of planetary gears and effects of thin-rimed gear on fillet stress. in International Scientific Conference on Defensive Technologies (OTEH 2016)
International Scientific Conference on Defensive Technologies (OTEH 2016)..
https://hdl.handle.net/21.15107/rcub_machinery_5548

Sedak M, Lazović T, Rosić B. Optimization of planetary gears and effects of thin-rimed gear on fillet stress. in International Scientific Conference on Defensive Technologies (OTEH 2016). 2016;.
https://hdl.handle.net/21.15107/rcub_machinery_5548 .

Sedak, Miloš, Lazović, Tatjana, Rosić, Božidar, "Optimization of planetary gears and effects of thin-rimed gear on fillet stress" in International Scientific Conference on Defensive Technologies (OTEH 2016) (2016),
https://hdl.handle.net/21.15107/rcub_machinery_5548 .