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  - THES
AU  - Zarić, Vladimir R.
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7416
AB  - У oквиру дoктoрскe дисeртaциje истрaжуje сe синтeзa упрaвљaчкoг систeмa прoпoрциoнaлнo-дифeрeнцнo-сумaрнoг (ПДС) типa нa oснoву кaрaктeристичнoг пoлинoмa пoтпунe прeнoснe функциje. Пoтпунa прeнoснa функциja oмoгућaвa дa сe дoбиjу тaчни рeзултaти у пoглeду скрaћивaњa jeднaких нулa и пoлoвa, дoбиjaњa кaрaктeристичнoг пoлинoмa и oдрeђивaњa пoтпунoг oдзивa систeмa. Нa пoчeтку сe oдрeђуje oблaст рeлaтивнe стaбилнoсти у прoстoру пoдeшљивих пaрaмeтaрa упрaвљaчкoг систeмa тaкo дa стeпeн пригушeњa ζ имa унaпрeд зaхтeвaну врeднoст. To je урaђeнo у случajу двa пoдeшљивa пaрaмeтрa нa примeримa ПД и ПС упрaвљaчких систeмa. Oсим тoгa, прoнaђeнa je oблaст рeлaтивнe стaбилнoсти у случajу три пoдeшљивa пaрaмeтрa ПДС упрaвљaчкoг систeмa. У нaрeднoм кoрaку сe спрoвoди мeтoдa услoвнe oптимизaциje при чeму сe кoристи изрaз зa грeшку излaзнe вeличинe кojи узимa у oбзир истoврeмeнo дejствo нeнултих пoчeтних услoвa и спoљaшњeг улaзa, a штo je oмoгућeнo примeнoм пoтпунe прeнoснe функциje. Нa тaj нaчин сe прoнaлaзe oптимaлни пaрaмeтри линeaрних упрaвљaчких систeмa ПДС типa зa кoje индeкс пeрфoрмaнсe, у oблику сумe квaдрaтa грeшaкa, имa минимaлну врeднoст. 
У другoм дeлу дисeртaциje прeтхoднo рaзвиjeнa мeтoдa услoвнe oптимизaциje линeaрних дискрeтних систeмa сe прoшируje и примeњуje нa клaсу нeлинeaрних дискрeтних систeмa, у oблику Taкaги-Сугeнo (TС) фaзи систeмa. У ту сврху je искoришћeнa oсoбинa TС  фaзи систeмa дa сe динaмикa нeлинeaрнoг систeмa мoжe изрaзити пoмoћу нeкoликo линeaрних (линeaризoвaних) систeмa. Нeлинeaрни Taкaги-Сугeнo фaзи мoдeл, кojи вeрoдoстojнo oписуje пoнaшaњe систeмa нa цeлoм прoстoру излaзa, сe дoбиja интeрпoлaциjoм нeкoликo линeaрних мaтeмaтичких мoдeлa. Извршeнa je синтeзa упрaвљaчкoг систeмa типa пaрaлeлнo рaспoдeљeнoг упрaвљaњa (PDC) кojи кoристи истe функциje припaднoсти кao и нeлинeaрни Taкaги-Сугeнo мoдeл oбjeктa. Oвaкaв упрaвљaчки систeм интeрпoлирa нeкoликo лoкaлних линeaрних упрaвљaчких систeмa. Зaхвaљуjући тeoриjи пoтпунe прeнoснe функциje, рaзмaтрa сe нajoпштиjи и нajрeaлистичниjи случaj услoвнe oптимизaциje лoкaлних линeaрних упрaвљaчких систeмa, при чeму je грeшкa рeзултaт истoврeмeнoг дeлoвaњa нeнултих пoчeтних услoвa и спoљaшњeг улaзa. Oдрeђeни су oптимaлни пaрaмeтри зa три линeaрнa прoпoрциoнaлнo-сумaрнa (ПС) кoнтрoлeрa при нултим и нeнултим пoчeтним услoвимa, увaжaвajући зaхтeв дa сви пojeдинaчни зaтвoрeни систeми имajу зaхтeвaни стeпeн пригушeњa ζ. Урaђeнa je синтeзa PDC кoнтрoлeрa кojи кoристи истe функциje припaднoсти кao и фaзи TС мoдeл oбjeктa, у двa случaja. У првoм случajу, PDC кoнтрoлeр je сaстaвљeн oд три лoкaлнa линeaрнa ПС кoнтрoлeрa чиjи су пaрaмeтри oдрeђeни при нултим пoчeтним услoвимa. У другoм случajу, PDC кoнтрoлeр чинe линeaрни кoнтрoлeри чиjи су пaрaмeтри oдрeђeни при нeнултим пoчeтним услoвимa.
AB  - The doctoral dissertation investigates the synthesis of a proportional-difference-sum (PDS) type control system based on the characteristic polynomial of the full transfer function. The full transfer function makes it possible to obtain accurate results in terms of cancellation of equal zeros and poles, obtaining the characteristic polynomial and determining the full response of the system. At the beginning, the relative stability area in the space of adjustable parameters of the control system is determined so that damping coefficient ζ has the value required in advance. This was done in the case of two adjustable parameters using the examples of PD and PS control systems. In addition, an area of relative stability was found in the case of three adjustable parameters of the PDS control system. In the next step, the method of conditional optimization is implemented using an expression for the output error that includes the simultaneous influence of nonzero initial conditions and the external output, which is made possible by applying a full transfer function. Thus, the optimal parameters of the PDS type linear control systems are found for which the performance index, in the form of the sum of squared errors, has a minimum value.
In the second part of the dissertation, the previously developed method of conditional optimization of linear discrete systems is extended and applied to the class of nonlinear discrete systems, in the form of Takagi-Sugeno (TS) fuzzy systems. For this purpose, the property of the TS fuzzy system was used that the dynamics of a nonlinear system can be expressed using several linear (linearized) systems. The nonlinear Takagi-Sugeno fuzzy model, which credibly describes the behavior of the system over the entire output space, is obtained by interpolating several linear mathematical models.  A synthesis of a PDC (parallel distributed compensation) control system using the same membership functions as the nonlinear Takagi-Sugeno fuzzy model of the plant was performed. Such control system interpolates several local linear control systems. Thanks to the theory of the complete transfer function, the most general and realistic case of conditional optimization of the local linear control systems is considered, where the output error is the result of the simultaneous action of nonzero initial conditions and external input. The optimal parameters for three local linear proportional-sum (PS) controllers at zero and nonzero initial conditions were determined, considering the requirement that all individual closed systems have the required damping coefficient ζ. Synthesis of a PDC controller that uses the same membership functions as the fuzzy TS plant model is made in two cases. In the first case, the PDC controller is composed of three local linear PS controllers whose parameters are determined at zero initial conditions. In the second case, the PDC controller consists of linear controllers whose parameters are determined at nonzero initial conditions.
PB  - Univerzitet u Beogradu, Mašinski fakultet
T2  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Условна оптимизација дискретних система аутоматског управљања применом потпуне преносне функције
T1  - Conditional optimization of discrete-time control systems using the full transfer function
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7416
ER  - 

@phdthesis{
author = "Zarić, Vladimir R.",
year = "2023",
abstract = "У oквиру дoктoрскe дисeртaциje истрaжуje сe синтeзa упрaвљaчкoг систeмa прoпoрциoнaлнo-дифeрeнцнo-сумaрнoг (ПДС) типa нa oснoву кaрaктeристичнoг пoлинoмa пoтпунe прeнoснe функциje. Пoтпунa прeнoснa функциja oмoгућaвa дa сe дoбиjу тaчни рeзултaти у пoглeду скрaћивaњa jeднaких нулa и пoлoвa, дoбиjaњa кaрaктeристичнoг пoлинoмa и oдрeђивaњa пoтпунoг oдзивa систeмa. Нa пoчeтку сe oдрeђуje oблaст рeлaтивнe стaбилнoсти у прoстoру пoдeшљивих пaрaмeтaрa упрaвљaчкoг систeмa тaкo дa стeпeн пригушeњa ζ имa унaпрeд зaхтeвaну врeднoст. To je урaђeнo у случajу двa пoдeшљивa пaрaмeтрa нa примeримa ПД и ПС упрaвљaчких систeмa. Oсим тoгa, прoнaђeнa je oблaст рeлaтивнe стaбилнoсти у случajу три пoдeшљивa пaрaмeтрa ПДС упрaвљaчкoг систeмa. У нaрeднoм кoрaку сe спрoвoди мeтoдa услoвнe oптимизaциje при чeму сe кoристи изрaз зa грeшку излaзнe вeличинe кojи узимa у oбзир истoврeмeнo дejствo нeнултих пoчeтних услoвa и спoљaшњeг улaзa, a штo je oмoгућeнo примeнoм пoтпунe прeнoснe функциje. Нa тaj нaчин сe прoнaлaзe oптимaлни пaрaмeтри линeaрних упрaвљaчких систeмa ПДС типa зa кoje индeкс пeрфoрмaнсe, у oблику сумe квaдрaтa грeшaкa, имa минимaлну врeднoст. 
У другoм дeлу дисeртaциje прeтхoднo рaзвиjeнa мeтoдa услoвнe oптимизaциje линeaрних дискрeтних систeмa сe прoшируje и примeњуje нa клaсу нeлинeaрних дискрeтних систeмa, у oблику Taкaги-Сугeнo (TС) фaзи систeмa. У ту сврху je искoришћeнa oсoбинa TС  фaзи систeмa дa сe динaмикa нeлинeaрнoг систeмa мoжe изрaзити пoмoћу нeкoликo линeaрних (линeaризoвaних) систeмa. Нeлинeaрни Taкaги-Сугeнo фaзи мoдeл, кojи вeрoдoстojнo oписуje пoнaшaњe систeмa нa цeлoм прoстoру излaзa, сe дoбиja интeрпoлaциjoм нeкoликo линeaрних мaтeмaтичких мoдeлa. Извршeнa je синтeзa упрaвљaчкoг систeмa типa пaрaлeлнo рaспoдeљeнoг упрaвљaњa (PDC) кojи кoристи истe функциje припaднoсти кao и нeлинeaрни Taкaги-Сугeнo мoдeл oбjeктa. Oвaкaв упрaвљaчки систeм интeрпoлирa нeкoликo лoкaлних линeaрних упрaвљaчких систeмa. Зaхвaљуjући тeoриjи пoтпунe прeнoснe функциje, рaзмaтрa сe нajoпштиjи и нajрeaлистичниjи случaj услoвнe oптимизaциje лoкaлних линeaрних упрaвљaчких систeмa, при чeму je грeшкa рeзултaт истoврeмeнoг дeлoвaњa нeнултих пoчeтних услoвa и спoљaшњeг улaзa. Oдрeђeни су oптимaлни пaрaмeтри зa три линeaрнa прoпoрциoнaлнo-сумaрнa (ПС) кoнтрoлeрa при нултим и нeнултим пoчeтним услoвимa, увaжaвajући зaхтeв дa сви пojeдинaчни зaтвoрeни систeми имajу зaхтeвaни стeпeн пригушeњa ζ. Урaђeнa je синтeзa PDC кoнтрoлeрa кojи кoристи истe функциje припaднoсти кao и фaзи TС мoдeл oбjeктa, у двa случaja. У првoм случajу, PDC кoнтрoлeр je сaстaвљeн oд три лoкaлнa линeaрнa ПС кoнтрoлeрa чиjи су пaрaмeтри oдрeђeни при нултим пoчeтним услoвимa. У другoм случajу, PDC кoнтрoлeр чинe линeaрни кoнтрoлeри чиjи су пaрaмeтри oдрeђeни при нeнултим пoчeтним услoвимa., The doctoral dissertation investigates the synthesis of a proportional-difference-sum (PDS) type control system based on the characteristic polynomial of the full transfer function. The full transfer function makes it possible to obtain accurate results in terms of cancellation of equal zeros and poles, obtaining the characteristic polynomial and determining the full response of the system. At the beginning, the relative stability area in the space of adjustable parameters of the control system is determined so that damping coefficient ζ has the value required in advance. This was done in the case of two adjustable parameters using the examples of PD and PS control systems. In addition, an area of relative stability was found in the case of three adjustable parameters of the PDS control system. In the next step, the method of conditional optimization is implemented using an expression for the output error that includes the simultaneous influence of nonzero initial conditions and the external output, which is made possible by applying a full transfer function. Thus, the optimal parameters of the PDS type linear control systems are found for which the performance index, in the form of the sum of squared errors, has a minimum value.
In the second part of the dissertation, the previously developed method of conditional optimization of linear discrete systems is extended and applied to the class of nonlinear discrete systems, in the form of Takagi-Sugeno (TS) fuzzy systems. For this purpose, the property of the TS fuzzy system was used that the dynamics of a nonlinear system can be expressed using several linear (linearized) systems. The nonlinear Takagi-Sugeno fuzzy model, which credibly describes the behavior of the system over the entire output space, is obtained by interpolating several linear mathematical models.  A synthesis of a PDC (parallel distributed compensation) control system using the same membership functions as the nonlinear Takagi-Sugeno fuzzy model of the plant was performed. Such control system interpolates several local linear control systems. Thanks to the theory of the complete transfer function, the most general and realistic case of conditional optimization of the local linear control systems is considered, where the output error is the result of the simultaneous action of nonzero initial conditions and external input. The optimal parameters for three local linear proportional-sum (PS) controllers at zero and nonzero initial conditions were determined, considering the requirement that all individual closed systems have the required damping coefficient ζ. Synthesis of a PDC controller that uses the same membership functions as the fuzzy TS plant model is made in two cases. In the first case, the PDC controller is composed of three local linear PS controllers whose parameters are determined at zero initial conditions. In the second case, the PDC controller consists of linear controllers whose parameters are determined at nonzero initial conditions.",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
journal = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Условна оптимизација дискретних система аутоматског управљања применом потпуне преносне функције, Conditional optimization of discrete-time control systems using the full transfer function",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7416"
}

Zarić, V. R.. (2023). Условна оптимизација дискретних система аутоматског управљања применом потпуне преносне функције. in Univerzitet u Beogradu, Mašinski fakultet
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_machinery_7416

Zarić VR. Условна оптимизација дискретних система аутоматског управљања применом потпуне преносне функције. in Univerzitet u Beogradu, Mašinski fakultet. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7416 .

Zarić, Vladimir R., "Условна оптимизација дискретних система аутоматског управљања применом потпуне преносне функције" in Univerzitet u Beogradu, Mašinski fakultet (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7416 .

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  - JOUR
AU  - Jovanović, Radiša
AU  - Zarić, Vladimir
AU  - Bučevac, Zoran
AU  - Bugarić, Uglješa
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4524
AB  - The study proposes a novel method for synthesis of a discrete-time parallel distributed
compensation (PDC) controller for the nonlinear discrete-time Takagi–Sugeno (TS) fuzzy plant model. For each of the fuzzy plant model linear subsystems, a local linear first order proportional-sum (PS) controller is designed. The algebraic technique is used in two-dimensional parameter space, utilizing the characteristic polynomial of the row nondegenerate full transfer function matrix. Each system’s relative stability is accomplished in relation to the selected damping coefficient. The supplementary criterion is the minimal value of the performance index in the form of the sum of squared errors (SSE). However, unlike the traditional technique, output error is influenced by all simultaneous actions on the system: nonzero inputs and nonzero initial conditions. The full transfer function matrix of the system allows for the treatment of simultaneous actions of the input vector and unknown unpredictable initial conditions. In order to show the improvement caused by the application of a new optimization method that considers nonzero initial conditions, a comparison of PDC controllers designed under zero and nonzero initial conditions is given, where the system in both cases starts from the same nonzero initial conditions, which is often the case in practice. The simulation and experimental results on a DC servo motor are shown to demonstrate the suggested method efficiency.
PB  - MDPI
T2  - Applied Sciences
T1  - Discrete-time system conditional optimization based on Takagi-Sugeno fuzzy model using the full transfer function
EP  - 22
IS  - 7705
SP  - 1
VL  - 12
DO  - 10.3390/app12157705
ER  - 

@article{
author = "Jovanović, Radiša and Zarić, Vladimir and Bučevac, Zoran and Bugarić, Uglješa",
year = "2022",
abstract = "The study proposes a novel method for synthesis of a discrete-time parallel distributed
compensation (PDC) controller for the nonlinear discrete-time Takagi–Sugeno (TS) fuzzy plant model. For each of the fuzzy plant model linear subsystems, a local linear first order proportional-sum (PS) controller is designed. The algebraic technique is used in two-dimensional parameter space, utilizing the characteristic polynomial of the row nondegenerate full transfer function matrix. Each system’s relative stability is accomplished in relation to the selected damping coefficient. The supplementary criterion is the minimal value of the performance index in the form of the sum of squared errors (SSE). However, unlike the traditional technique, output error is influenced by all simultaneous actions on the system: nonzero inputs and nonzero initial conditions. The full transfer function matrix of the system allows for the treatment of simultaneous actions of the input vector and unknown unpredictable initial conditions. In order to show the improvement caused by the application of a new optimization method that considers nonzero initial conditions, a comparison of PDC controllers designed under zero and nonzero initial conditions is given, where the system in both cases starts from the same nonzero initial conditions, which is often the case in practice. The simulation and experimental results on a DC servo motor are shown to demonstrate the suggested method efficiency.",
publisher = "MDPI",
journal = "Applied Sciences",
title = "Discrete-time system conditional optimization based on Takagi-Sugeno fuzzy model using the full transfer function",
pages = "22-1",
number = "7705",
volume = "12",
doi = "10.3390/app12157705"
}

Jovanović, R., Zarić, V., Bučevac, Z.,& Bugarić, U.. (2022). Discrete-time system conditional optimization based on Takagi-Sugeno fuzzy model using the full transfer function. in Applied Sciences
MDPI., 12(7705), 1-22.
https://doi.org/10.3390/app12157705

Jovanović R, Zarić V, Bučevac Z, Bugarić U. Discrete-time system conditional optimization based on Takagi-Sugeno fuzzy model using the full transfer function. in Applied Sciences. 2022;12(7705):1-22.
doi:10.3390/app12157705 .

Jovanović, Radiša, Zarić, Vladimir, Bučevac, Zoran, Bugarić, Uglješa, "Discrete-time system conditional optimization based on Takagi-Sugeno fuzzy model using the full transfer function" in Applied Sciences, 12, no. 7705 (2022):1-22,
https://doi.org/10.3390/app12157705 . .

TY  - JOUR
AU  - Jovanović, Radiša
AU  - Zarić, Vladimir
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3781
AB  - Even though, it is mostly used by process control engineers, the temperature control remains an important task for researchers. This paper addressed two separate issues concerning model optimization and control. Firstly, the linear models for the three different operating points of the heat flow system were found. From these identified models a Takagi-Sugeno model is obtained using fixed membership functions in the premises of the rules. According to the chosen objective function, parameters in the premise part of Takagi-Sugeno fuzzy model were optimized using the grey wolf algorithm. Furthermore, by using the parallel distributed compensation a fuzzy controller is developed via the fuzzy blending of three proportional + sum controllers designed for each of the operating points. In order to evaluate performance, a comparison is made between the fuzzy controller and local linear controllers. Moreover, the fuzzy controllers from the optimized and initial Takagi-Sugeno plant models are compared. The experimental results on a heat flow platform are presented to validate efficiency of the proposed method.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Identification and control of a heat flow system based on the Takagi-Sugeno fuzzy model using the grey wolf optimizer
EP  - 2286
IS  - 3
SP  - 2275
VL  - 26
DO  - 10.2298/TSCI210825324J
ER  - 

@article{
author = "Jovanović, Radiša and Zarić, Vladimir",
year = "2022",
abstract = "Even though, it is mostly used by process control engineers, the temperature control remains an important task for researchers. This paper addressed two separate issues concerning model optimization and control. Firstly, the linear models for the three different operating points of the heat flow system were found. From these identified models a Takagi-Sugeno model is obtained using fixed membership functions in the premises of the rules. According to the chosen objective function, parameters in the premise part of Takagi-Sugeno fuzzy model were optimized using the grey wolf algorithm. Furthermore, by using the parallel distributed compensation a fuzzy controller is developed via the fuzzy blending of three proportional + sum controllers designed for each of the operating points. In order to evaluate performance, a comparison is made between the fuzzy controller and local linear controllers. Moreover, the fuzzy controllers from the optimized and initial Takagi-Sugeno plant models are compared. The experimental results on a heat flow platform are presented to validate efficiency of the proposed method.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Identification and control of a heat flow system based on the Takagi-Sugeno fuzzy model using the grey wolf optimizer",
pages = "2286-2275",
number = "3",
volume = "26",
doi = "10.2298/TSCI210825324J"
}

Jovanović, R.,& Zarić, V.. (2022). Identification and control of a heat flow system based on the Takagi-Sugeno fuzzy model using the grey wolf optimizer. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 26(3), 2275-2286.
https://doi.org/10.2298/TSCI210825324J

Jovanović R, Zarić V. Identification and control of a heat flow system based on the Takagi-Sugeno fuzzy model using the grey wolf optimizer. in Thermal Science. 2022;26(3):2275-2286.
doi:10.2298/TSCI210825324J .

Jovanović, Radiša, Zarić, Vladimir, "Identification and control of a heat flow system based on the Takagi-Sugeno fuzzy model using the grey wolf optimizer" in Thermal Science, 26, no. 3 (2022):2275-2286,
https://doi.org/10.2298/TSCI210825324J . .

TY  - JOUR
AU  - Zarić, Vladimir
AU  - Bučevac, Zoran M.
AU  - Jovanović, Radiša
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3771
AB  - The paper presents a new approach to the design of the classical PD controller for the plant in the closed loop control system. Proposed controller has two unknown adjustable parameters which are designed by the algebraic method in the two dimensional parameter space, by using the newly discovered characteristic polynomial of the row nondegenerate full transfer function matrix. The system relative stability, in regard to the chosen damping coefficient is achieved. The optimality criterion is the minimal value of the performance index and sum of squared error is taken as an objective function. The output error used in the performance index is influenced by all actions on the system at the same time: by nonzero initial conditions and by nonzero inputs. In the classical approach the output error is influenced only by nonzero inputs. Experimental results confirm that by taking into account nonzero initial conditions, an optimal solution is obtained, which is not the case with the classical method where optimization is performed at zero initial conditions.
PB  - Univ Osijek, Tech Fac, Slavonski Brod
T2  - Tehnički vjesnik
T1  - Discrete-Time System Conditional Optimization in the Parameter Space with Nonzero Initial Conditions
EP  - 207
IS  - 1
SP  - 200
VL  - 29
DO  - 10.17559/TV-20191031145233
ER  - 

@article{
author = "Zarić, Vladimir and Bučevac, Zoran M. and Jovanović, Radiša",
year = "2022",
abstract = "The paper presents a new approach to the design of the classical PD controller for the plant in the closed loop control system. Proposed controller has two unknown adjustable parameters which are designed by the algebraic method in the two dimensional parameter space, by using the newly discovered characteristic polynomial of the row nondegenerate full transfer function matrix. The system relative stability, in regard to the chosen damping coefficient is achieved. The optimality criterion is the minimal value of the performance index and sum of squared error is taken as an objective function. The output error used in the performance index is influenced by all actions on the system at the same time: by nonzero initial conditions and by nonzero inputs. In the classical approach the output error is influenced only by nonzero inputs. Experimental results confirm that by taking into account nonzero initial conditions, an optimal solution is obtained, which is not the case with the classical method where optimization is performed at zero initial conditions.",
publisher = "Univ Osijek, Tech Fac, Slavonski Brod",
journal = "Tehnički vjesnik",
title = "Discrete-Time System Conditional Optimization in the Parameter Space with Nonzero Initial Conditions",
pages = "207-200",
number = "1",
volume = "29",
doi = "10.17559/TV-20191031145233"
}

Zarić, V., Bučevac, Z. M.,& Jovanović, R.. (2022). Discrete-Time System Conditional Optimization in the Parameter Space with Nonzero Initial Conditions. in Tehnički vjesnik
Univ Osijek, Tech Fac, Slavonski Brod., 29(1), 200-207.
https://doi.org/10.17559/TV-20191031145233

Zarić V, Bučevac ZM, Jovanović R. Discrete-Time System Conditional Optimization in the Parameter Space with Nonzero Initial Conditions. in Tehnički vjesnik. 2022;29(1):200-207.
doi:10.17559/TV-20191031145233 .

Zarić, Vladimir, Bučevac, Zoran M., Jovanović, Radiša, "Discrete-Time System Conditional Optimization in the Parameter Space with Nonzero Initial Conditions" in Tehnički vjesnik, 29, no. 1 (2022):200-207,
https://doi.org/10.17559/TV-20191031145233 . .

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  - JOUR
AU  - Skoko, D. M.
AU  - Crnojević, C. D.
AU  - Lečić, Milan
AU  - Ristivojević, Mileta
AU  - Mitrović, Radivoje
AU  - Burazer, Jela M.
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3733
AB  - The present paper studies the impingement of compressible air jet on a flat plate primarily from the aspect of its application in the domain of pneumatic metrology, i.e. in cases of small distance between the jet nozzle exit and the flat plate. Besides this direct application in the area of pneumatic metrology, the distance between the nozzle exit and the flat plate has been considerably increased and the case of a free jet was analysed with a view to compare the results applicable in various domains. This experimental study demonstrates that the structures of a free jet and this special case of an impingement jet are totally different. In the pressure distribution of the impingement jet, pressure discontinuity above the flat plate may occur, which is shown to be the result of low intensity shock waves and transonic flow. The experimental results show that the pneumatic sensitivity of a pneumatic comparator is a function of the supply pressure and the internal orifice diameter, as well as that the impingement air jet is a typical case of non-isentropic flow.
PB  - Springer, New York
T2  - Experimental Techniques
T1  - Some Characteristics of Compressible Air Impingement Jet Applied in Pneumatic Dimensional Control
EP  - 113
IS  - 1
SP  - 103
VL  - 46
DO  - 10.1007/s40799-021-00460-6
ER  - 

@article{
author = "Skoko, D. M. and Crnojević, C. D. and Lečić, Milan and Ristivojević, Mileta and Mitrović, Radivoje and Burazer, Jela M.",
year = "2022",
abstract = "The present paper studies the impingement of compressible air jet on a flat plate primarily from the aspect of its application in the domain of pneumatic metrology, i.e. in cases of small distance between the jet nozzle exit and the flat plate. Besides this direct application in the area of pneumatic metrology, the distance between the nozzle exit and the flat plate has been considerably increased and the case of a free jet was analysed with a view to compare the results applicable in various domains. This experimental study demonstrates that the structures of a free jet and this special case of an impingement jet are totally different. In the pressure distribution of the impingement jet, pressure discontinuity above the flat plate may occur, which is shown to be the result of low intensity shock waves and transonic flow. The experimental results show that the pneumatic sensitivity of a pneumatic comparator is a function of the supply pressure and the internal orifice diameter, as well as that the impingement air jet is a typical case of non-isentropic flow.",
publisher = "Springer, New York",
journal = "Experimental Techniques",
title = "Some Characteristics of Compressible Air Impingement Jet Applied in Pneumatic Dimensional Control",
pages = "113-103",
number = "1",
volume = "46",
doi = "10.1007/s40799-021-00460-6"
}

Skoko, D. M., Crnojević, C. D., Lečić, M., Ristivojević, M., Mitrović, R.,& Burazer, J. M.. (2022). Some Characteristics of Compressible Air Impingement Jet Applied in Pneumatic Dimensional Control. in Experimental Techniques
Springer, New York., 46(1), 103-113.
https://doi.org/10.1007/s40799-021-00460-6

Skoko DM, Crnojević CD, Lečić M, Ristivojević M, Mitrović R, Burazer JM. Some Characteristics of Compressible Air Impingement Jet Applied in Pneumatic Dimensional Control. in Experimental Techniques. 2022;46(1):103-113.
doi:10.1007/s40799-021-00460-6 .

Skoko, D. M., Crnojević, C. D., Lečić, Milan, Ristivojević, Mileta, Mitrović, Radivoje, Burazer, Jela M., "Some Characteristics of Compressible Air Impingement Jet Applied in Pneumatic Dimensional Control" in Experimental Techniques, 46, no. 1 (2022):103-113,
https://doi.org/10.1007/s40799-021-00460-6 . .

TY  - CONF
AU  - Zarić, Vladimir
AU  - Perišić, Natalija
AU  - Jovanović, Radiša
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4510
AB  - This paper deals with liquid level control as one of the frequent problems in industry. Several classical methods for tuning a PID like controller were applied. Furthermore, parameters for the controller were optimized using grey wolf optimizer. In addition to the classical controller, fuzzy PID like controller has also been designed and optimized using the same optimization algorithm. Experimental results obtained on the tank system are provided.
PB  - Kraljevo: Faculty of Mechanical and Civil Engineering
C3  - The Tennth International Triennial Conference Heavy Machinery HM 2021: Proceedings, Vrnjačka Banja, June 23-25
T1  - Control of a Liquid Level System Based on Classical and Fuzzy PID Like Controller Using the Grey Wolf Optimization Algorithm
EP  - C30
SP  - C23
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4510
ER  - 

@conference{
author = "Zarić, Vladimir and Perišić, Natalija and Jovanović, Radiša",
year = "2021",
abstract = "This paper deals with liquid level control as one of the frequent problems in industry. Several classical methods for tuning a PID like controller were applied. Furthermore, parameters for the controller were optimized using grey wolf optimizer. In addition to the classical controller, fuzzy PID like controller has also been designed and optimized using the same optimization algorithm. Experimental results obtained on the tank system are provided.",
publisher = "Kraljevo: Faculty of Mechanical and Civil Engineering",
journal = "The Tennth International Triennial Conference Heavy Machinery HM 2021: Proceedings, Vrnjačka Banja, June 23-25",
title = "Control of a Liquid Level System Based on Classical and Fuzzy PID Like Controller Using the Grey Wolf Optimization Algorithm",
pages = "C30-C23",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4510"
}

Zarić, V., Perišić, N.,& Jovanović, R.. (2021). Control of a Liquid Level System Based on Classical and Fuzzy PID Like Controller Using the Grey Wolf Optimization Algorithm. in The Tennth International Triennial Conference Heavy Machinery HM 2021: Proceedings, Vrnjačka Banja, June 23-25
Kraljevo: Faculty of Mechanical and Civil Engineering., C23-C30.
https://hdl.handle.net/21.15107/rcub_machinery_4510

Zarić V, Perišić N, Jovanović R. Control of a Liquid Level System Based on Classical and Fuzzy PID Like Controller Using the Grey Wolf Optimization Algorithm. in The Tennth International Triennial Conference Heavy Machinery HM 2021: Proceedings, Vrnjačka Banja, June 23-25. 2021;:C23-C30.
https://hdl.handle.net/21.15107/rcub_machinery_4510 .

Zarić, Vladimir, Perišić, Natalija, Jovanović, Radiša, "Control of a Liquid Level System Based on Classical and Fuzzy PID Like Controller Using the Grey Wolf Optimization Algorithm" in The Tennth International Triennial Conference Heavy Machinery HM 2021: Proceedings, Vrnjačka Banja, June 23-25 (2021):C23-C30,
https://hdl.handle.net/21.15107/rcub_machinery_4510 .

TY  - JOUR
AU  - Gruyitch, Lyubomir
AU  - Bučevac, Zoran M.
AU  - Jovanović, Radiša
AU  - Zarić, Vladimir
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3516
AB  - Dynamic systems operate under the simultaneous influence of both the initial conditions and the input vector. There is neither physical nor mathematical justification for ignoring the initial conditions, e.g., in the control optimisation. This paper gives a response to the following question: Is a set of controller parameters which is optimal for the operation of a control system under zero initial conditions also optimal for its operation under non-zero initial conditions? The paper presents a new approach to the design of a classical proportional-differencesum (PDS) controller for a plant in a closed loop control system. The system relative stability with respect to a desired damping coefficient is accomplished. The minimal value of the performance index in the form of the sum of squared errors is the optimality criterion. Unlike the classical approach, the output error used in the performance index is influenced by all actions performed on the system at the same time.
PB  - Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb
T2  - Transactions of Famena
T1  - Discrete-time system conditional optimisation in the parameter space via the full transfer function matrix
EP  - 62
IS  - 3
SP  - 45
VL  - 45
DO  - 10.21278/TOF.453014220
ER  - 

@article{
author = "Gruyitch, Lyubomir and Bučevac, Zoran M. and Jovanović, Radiša and Zarić, Vladimir",
year = "2021",
abstract = "Dynamic systems operate under the simultaneous influence of both the initial conditions and the input vector. There is neither physical nor mathematical justification for ignoring the initial conditions, e.g., in the control optimisation. This paper gives a response to the following question: Is a set of controller parameters which is optimal for the operation of a control system under zero initial conditions also optimal for its operation under non-zero initial conditions? The paper presents a new approach to the design of a classical proportional-differencesum (PDS) controller for a plant in a closed loop control system. The system relative stability with respect to a desired damping coefficient is accomplished. The minimal value of the performance index in the form of the sum of squared errors is the optimality criterion. Unlike the classical approach, the output error used in the performance index is influenced by all actions performed on the system at the same time.",
publisher = "Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb",
journal = "Transactions of Famena",
title = "Discrete-time system conditional optimisation in the parameter space via the full transfer function matrix",
pages = "62-45",
number = "3",
volume = "45",
doi = "10.21278/TOF.453014220"
}

Gruyitch, L., Bučevac, Z. M., Jovanović, R.,& Zarić, V.. (2021). Discrete-time system conditional optimisation in the parameter space via the full transfer function matrix. in Transactions of Famena
Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb., 45(3), 45-62.
https://doi.org/10.21278/TOF.453014220

Gruyitch L, Bučevac ZM, Jovanović R, Zarić V. Discrete-time system conditional optimisation in the parameter space via the full transfer function matrix. in Transactions of Famena. 2021;45(3):45-62.
doi:10.21278/TOF.453014220 .

Gruyitch, Lyubomir, Bučevac, Zoran M., Jovanović, Radiša, Zarić, Vladimir, "Discrete-time system conditional optimisation in the parameter space via the full transfer function matrix" in Transactions of Famena, 45, no. 3 (2021):45-62,
https://doi.org/10.21278/TOF.453014220 . .

TY  - JOUR
AU  - Lazović, Tatjana
AU  - Marinković, Aleksandar
AU  - Popović, Vladimir
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3665
AB  - The study investigates the influence of the load distribution on lubricant film thickness between the rolling elements and raceways of the deep groove ball bearing using the conventional theory of elastohydrodynamic lubrication (EHL) with an applied original mathematical model of load distribution between the rolling elements developed by the authors. A presented mathematical model takes into account the influence of bearing operational load and internal geometry (number of balls and radial internal clearance) on lubricant film thickness between balls and raceways. The analyses show that the lubricant film thickness between the balls and raceways decreases with the decrease of the number of balls, a decrease of bearing load and increase of radial internal clearance, due to the increase of inequality of load distribution. The obtained analytical results can be useful for bearing design development as well as in analyses of lubrication conditions of rolling elements bearings in general.
PB  - Chinese Mechanical Engineering Society
T2  - Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Eng
T1  - Influence of Load and Design Conditions on Lubricant Film Thickness in the Deep Groove Ball Bearing
EP  - 392
IS  - 4
SP  - 381
VL  - 42
UR  - https://hdl.handle.net/21.15107/rcub_machinery_3665
ER  - 

@article{
author = "Lazović, Tatjana and Marinković, Aleksandar and Popović, Vladimir",
year = "2021",
abstract = "The study investigates the influence of the load distribution on lubricant film thickness between the rolling elements and raceways of the deep groove ball bearing using the conventional theory of elastohydrodynamic lubrication (EHL) with an applied original mathematical model of load distribution between the rolling elements developed by the authors. A presented mathematical model takes into account the influence of bearing operational load and internal geometry (number of balls and radial internal clearance) on lubricant film thickness between balls and raceways. The analyses show that the lubricant film thickness between the balls and raceways decreases with the decrease of the number of balls, a decrease of bearing load and increase of radial internal clearance, due to the increase of inequality of load distribution. The obtained analytical results can be useful for bearing design development as well as in analyses of lubrication conditions of rolling elements bearings in general.",
publisher = "Chinese Mechanical Engineering Society",
journal = "Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Eng",
title = "Influence of Load and Design Conditions on Lubricant Film Thickness in the Deep Groove Ball Bearing",
pages = "392-381",
number = "4",
volume = "42",
url = "https://hdl.handle.net/21.15107/rcub_machinery_3665"
}

Lazović, T., Marinković, A.,& Popović, V.. (2021). Influence of Load and Design Conditions on Lubricant Film Thickness in the Deep Groove Ball Bearing. in Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Eng
Chinese Mechanical Engineering Society., 42(4), 381-392.
https://hdl.handle.net/21.15107/rcub_machinery_3665

Lazović T, Marinković A, Popović V. Influence of Load and Design Conditions on Lubricant Film Thickness in the Deep Groove Ball Bearing. in Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Eng. 2021;42(4):381-392.
https://hdl.handle.net/21.15107/rcub_machinery_3665 .

Lazović, Tatjana, Marinković, Aleksandar, Popović, Vladimir, "Influence of Load and Design Conditions on Lubricant Film Thickness in the Deep Groove Ball Bearing" in Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Eng, 42, no. 4 (2021):381-392,
https://hdl.handle.net/21.15107/rcub_machinery_3665 .

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  - JOUR
AU  - Dimić, Aleksandar
AU  - Ristivojević, Mileta
AU  - Rosić, Božidar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3606
AB  - The load distribution of simultaneously meshed gear teeth pairs has a significant influence in determining the relevant stress for the working capacity calculation of cylindrical gear pairs with respect to surface and volume strength. According to conventional calculation procedures, the influence of the boundary-ideally uniform load distribution, when all simultaneously meshed teeth pairs are equally engaged in the load transfer, on the teeth flanks stress state is taken into account by approximate expressions for contact ratio factor Z epsilon. In addition, this factor is not defined, no assumptions were given on the basis of which approximate expressions were determined, and no procedure for determining these expressions was disclosed. This paper defines a factor on the basis of which an analysis of the boundary-ideally uniform load distribution can be carried out. By observing the contact lines in the meshing area, when one and two or two and three meshed gear teeth pairs are alternating during the meshing period, a set of analytical expressions is developed to describe the boundary-ideally uniform load distribution of simultaneously meshed gear teeth pairs. Based on the developed analytical expressions, the limiting values of the gear teeth flank stresses can be determined more precisely and the degree of accuracy of the approximate expressions for the contact ratio factor which are given in conventional calculation procedures can be tested. The analysis carried out in this paper can be used for more accurate considerations of all cylindrical gear pairs occurrences which depend on load distribution, such as: load capacity, mesh stiffness, vibration, noise, energy efficiency, etc.
PB  - Springer Heidelberg, Heidelberg
T2  - Journal of The Brazilian Society of Mechanical Sciences and Engineering
T1  - Boundary load distribution of simultaneously meshed gear teeth pairs
IS  - 3
VL  - 43
DO  - 10.1007/s40430-021-02886-w
ER  - 

@article{
author = "Dimić, Aleksandar and Ristivojević, Mileta and Rosić, Božidar",
year = "2021",
abstract = "The load distribution of simultaneously meshed gear teeth pairs has a significant influence in determining the relevant stress for the working capacity calculation of cylindrical gear pairs with respect to surface and volume strength. According to conventional calculation procedures, the influence of the boundary-ideally uniform load distribution, when all simultaneously meshed teeth pairs are equally engaged in the load transfer, on the teeth flanks stress state is taken into account by approximate expressions for contact ratio factor Z epsilon. In addition, this factor is not defined, no assumptions were given on the basis of which approximate expressions were determined, and no procedure for determining these expressions was disclosed. This paper defines a factor on the basis of which an analysis of the boundary-ideally uniform load distribution can be carried out. By observing the contact lines in the meshing area, when one and two or two and three meshed gear teeth pairs are alternating during the meshing period, a set of analytical expressions is developed to describe the boundary-ideally uniform load distribution of simultaneously meshed gear teeth pairs. Based on the developed analytical expressions, the limiting values of the gear teeth flank stresses can be determined more precisely and the degree of accuracy of the approximate expressions for the contact ratio factor which are given in conventional calculation procedures can be tested. The analysis carried out in this paper can be used for more accurate considerations of all cylindrical gear pairs occurrences which depend on load distribution, such as: load capacity, mesh stiffness, vibration, noise, energy efficiency, etc.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Journal of The Brazilian Society of Mechanical Sciences and Engineering",
title = "Boundary load distribution of simultaneously meshed gear teeth pairs",
number = "3",
volume = "43",
doi = "10.1007/s40430-021-02886-w"
}

Dimić, A., Ristivojević, M.,& Rosić, B.. (2021). Boundary load distribution of simultaneously meshed gear teeth pairs. in Journal of The Brazilian Society of Mechanical Sciences and Engineering
Springer Heidelberg, Heidelberg., 43(3).
https://doi.org/10.1007/s40430-021-02886-w

Dimić A, Ristivojević M, Rosić B. Boundary load distribution of simultaneously meshed gear teeth pairs. in Journal of The Brazilian Society of Mechanical Sciences and Engineering. 2021;43(3).
doi:10.1007/s40430-021-02886-w .

Dimić, Aleksandar, Ristivojević, Mileta, Rosić, Božidar, "Boundary load distribution of simultaneously meshed gear teeth pairs" in Journal of The Brazilian Society of Mechanical Sciences and Engineering, 43, no. 3 (2021),
https://doi.org/10.1007/s40430-021-02886-w . .

TY  - CHAP
AU  - Atanasovska, Ivana
AU  - Momčilović, Dejan B.
AU  - Mitrović, Radivoje
AU  - Soldat, Nataša D.
AU  - Nesić, N.
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3459
AB  - This paper contains elements of a comprehensive research devoted to the dynamic behavior of radial ball bearings in real working conditions. The general motivation for this topic comes from the requirements for high performance operation of bearings within complex mechanical systems, defined in many industrial branches during the last decades. The discussion of the fundamental postulates of the approach used for analyzing the vibration response of rolling ball bearings in order to select the optimal working conditions is given. The certain simplifications and reductions used for analyzing the radial ball bearings are explained. The developed procedure can be used for research of influence of different damages and variable operation conditions on the rolling bearings dynamics. The detail analyses of the dynamic behavior of rolling bearings are performed for particular types of radial ball bearings in two case studies: For the damaged outer raceway surface in accordance with real fatigue damage shapes and dimensions and, for variable working temperature. Obtained results are shown by comparative diagrams of vibration and phase plane portraits. Presented results could be a base for more widely research of nonlinear dynamics of radial ball bearings with different damages and for the application of phase plane analysis in order to choose the optimal operation conditions.
PB  - Springer
T2  - IUTAM Bookseries
T1  - Nonlinear Dynamics as a Tool in Selection of Working Conditions for Radial Ball Bearing
EP  - 58
SP  - 49
VL  - 37
DO  - 10.1007/978-3-030-23692-2_5
ER  - 

@inbook{
author = "Atanasovska, Ivana and Momčilović, Dejan B. and Mitrović, Radivoje and Soldat, Nataša D. and Nesić, N.",
year = "2020",
abstract = "This paper contains elements of a comprehensive research devoted to the dynamic behavior of radial ball bearings in real working conditions. The general motivation for this topic comes from the requirements for high performance operation of bearings within complex mechanical systems, defined in many industrial branches during the last decades. The discussion of the fundamental postulates of the approach used for analyzing the vibration response of rolling ball bearings in order to select the optimal working conditions is given. The certain simplifications and reductions used for analyzing the radial ball bearings are explained. The developed procedure can be used for research of influence of different damages and variable operation conditions on the rolling bearings dynamics. The detail analyses of the dynamic behavior of rolling bearings are performed for particular types of radial ball bearings in two case studies: For the damaged outer raceway surface in accordance with real fatigue damage shapes and dimensions and, for variable working temperature. Obtained results are shown by comparative diagrams of vibration and phase plane portraits. Presented results could be a base for more widely research of nonlinear dynamics of radial ball bearings with different damages and for the application of phase plane analysis in order to choose the optimal operation conditions.",
publisher = "Springer",
journal = "IUTAM Bookseries",
booktitle = "Nonlinear Dynamics as a Tool in Selection of Working Conditions for Radial Ball Bearing",
pages = "58-49",
volume = "37",
doi = "10.1007/978-3-030-23692-2_5"
}

Atanasovska, I., Momčilović, D. B., Mitrović, R., Soldat, N. D.,& Nesić, N.. (2020). Nonlinear Dynamics as a Tool in Selection of Working Conditions for Radial Ball Bearing. in IUTAM Bookseries
Springer., 37, 49-58.
https://doi.org/10.1007/978-3-030-23692-2_5

Atanasovska I, Momčilović DB, Mitrović R, Soldat ND, Nesić N. Nonlinear Dynamics as a Tool in Selection of Working Conditions for Radial Ball Bearing. in IUTAM Bookseries. 2020;37:49-58.
doi:10.1007/978-3-030-23692-2_5 .

Atanasovska, Ivana, Momčilović, Dejan B., Mitrović, Radivoje, Soldat, Nataša D., Nesić, N., "Nonlinear Dynamics as a Tool in Selection of Working Conditions for Radial Ball Bearing" in IUTAM Bookseries, 37 (2020):49-58,
https://doi.org/10.1007/978-3-030-23692-2_5 . .

TY  - CONF
AU  - Zarić, Vladimir
AU  - Jovanović, Radiša
AU  - Laban, Lara
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4548
AB  - The process industries have continually combated
the problem concerning liquid level control. Effective control
of a system depends largely on the accuracy of the
mathematical model that predicts its dynamic behavior. In
this paper the Takagi-Sugeno fuzzy model for the coupledtank system was acquired based on empirical technique.
Furthermore, a metaheuristic algorithm was used as an
optimizer on the coupled-tank model. Then, a juxtaposition
was made when comparing models which were identified
and optimized, leading to satisfactory results. Experimental
results obtained on the coupled-tank system are provided.
PB  - Niš : Faculty of Mechanical Engineering
C3  - THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” Masing 2020 : Proceedings, Niš, December 09-10, 2020
T1  - Identification of a coupled-tank plant and Takagi-Sugeno model optimization using a whale optimizer
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4548
ER  - 

@conference{
author = "Zarić, Vladimir and Jovanović, Radiša and Laban, Lara",
year = "2020",
abstract = "The process industries have continually combated
the problem concerning liquid level control. Effective control
of a system depends largely on the accuracy of the
mathematical model that predicts its dynamic behavior. In
this paper the Takagi-Sugeno fuzzy model for the coupledtank system was acquired based on empirical technique.
Furthermore, a metaheuristic algorithm was used as an
optimizer on the coupled-tank model. Then, a juxtaposition
was made when comparing models which were identified
and optimized, leading to satisfactory results. Experimental
results obtained on the coupled-tank system are provided.",
publisher = "Niš : Faculty of Mechanical Engineering",
journal = "THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” Masing 2020 : Proceedings, Niš, December 09-10, 2020",
title = "Identification of a coupled-tank plant and Takagi-Sugeno model optimization using a whale optimizer",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4548"
}

Zarić, V., Jovanović, R.,& Laban, L.. (2020). Identification of a coupled-tank plant and Takagi-Sugeno model optimization using a whale optimizer. in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” Masing 2020 : Proceedings, Niš, December 09-10, 2020
Niš : Faculty of Mechanical Engineering..
https://hdl.handle.net/21.15107/rcub_machinery_4548

Zarić V, Jovanović R, Laban L. Identification of a coupled-tank plant and Takagi-Sugeno model optimization using a whale optimizer. in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” Masing 2020 : Proceedings, Niš, December 09-10, 2020. 2020;.
https://hdl.handle.net/21.15107/rcub_machinery_4548 .

Zarić, Vladimir, Jovanović, Radiša, Laban, Lara, "Identification of a coupled-tank plant and Takagi-Sugeno model optimization using a whale optimizer" in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” Masing 2020 : Proceedings, Niš, December 09-10, 2020 (2020),
https://hdl.handle.net/21.15107/rcub_machinery_4548 .

TY  - CONF
AU  - Vesović, Mitra
AU  - Jovanović, Radiša
AU  - Zarić, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4512
AB  - In this paper the nonlinear feedback control 
system is presented for the speed control in direct current - 
DC motor. Nonlinear functions of dead zone, Coulomb and 
viscous friction were investigated and used for obtaining the 
mathematical model. The effectiveness and the comparison 
between linear and nonlinear control signal have been 
confirmed using Matlab/Simulink software. From the 
conclusions, based on the experimental results, it is easy to 
see that nonlinear control system is more acceptable and has 
a better performance for speed control. The validity of using 
feedback linearization in DC motors has been proven.
PB  - Faculty of Mechanical Engineering in Niš
PB  - Prof. Dr Nenad T. Pavlović, Dean
C3  - THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10
T1  - Modelling and Speed Control in a Series Direct Current  (DC) Machines Using Feedback Linearization Approach
EP  - 212
SP  - MECHATRONICS AND CONTROL pp. 207
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4512
ER  - 

@conference{
author = "Vesović, Mitra and Jovanović, Radiša and Zarić, Vladimir",
year = "2020",
abstract = "In this paper the nonlinear feedback control 
system is presented for the speed control in direct current - 
DC motor. Nonlinear functions of dead zone, Coulomb and 
viscous friction were investigated and used for obtaining the 
mathematical model. The effectiveness and the comparison 
between linear and nonlinear control signal have been 
confirmed using Matlab/Simulink software. From the 
conclusions, based on the experimental results, it is easy to 
see that nonlinear control system is more acceptable and has 
a better performance for speed control. The validity of using 
feedback linearization in DC motors has been proven.",
publisher = "Faculty of Mechanical Engineering in Niš, Prof. Dr Nenad T. Pavlović, Dean",
journal = "THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10",
title = "Modelling and Speed Control in a Series Direct Current  (DC) Machines Using Feedback Linearization Approach",
pages = "212-MECHATRONICS AND CONTROL pp. 207",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4512"
}

Vesović, M., Jovanović, R.,& Zarić, V.. (2020). Modelling and Speed Control in a Series Direct Current  (DC) Machines Using Feedback Linearization Approach. in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10
Faculty of Mechanical Engineering in Niš., MECHATRONICS AND CONTROL pp. 207-212.
https://hdl.handle.net/21.15107/rcub_machinery_4512

Vesović M, Jovanović R, Zarić V. Modelling and Speed Control in a Series Direct Current  (DC) Machines Using Feedback Linearization Approach. in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10. 2020;:MECHATRONICS AND CONTROL pp. 207-212.
https://hdl.handle.net/21.15107/rcub_machinery_4512 .

Vesović, Mitra, Jovanović, Radiša, Zarić, Vladimir, "Modelling and Speed Control in a Series Direct Current  (DC) Machines Using Feedback Linearization Approach" in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10 (2020):MECHATRONICS AND CONTROL pp. 207-212,
https://hdl.handle.net/21.15107/rcub_machinery_4512 .

TY  - CONF
AU  - Jovanović, Radiša
AU  - Zarić, Vladimir
AU  - Vesović, Mitra
AU  - Laban, Lara
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4500
AB  - The liquid level control remains an important task for research and is used by process control engineers. Linear models for the tank system were obtained based on empirical techniques. From these identified linear models Takagi-Sugeno model was obtained and later a fuzzy controller was designed based on the parallel distributed compensation method (PDC). A comparison was made between local linear PI controllers and the parallel distributed compensation controller. The evaluation criteria which was considered in this paper is the step response. In addition to all of the above stated, the whale optimization algorithm is implemented to fine tune parameters and to obtain optimized Takagi-Sugeno plant model. Moreover, the PDC from optimized model is compared to the first parallel distributed controller, which was based on identified models.
PB  - Belgrade : Društvo za ETRAN
PB  - Beograd : Akademska misao
C3  - Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020
T1  - Modeling and Control of a Liquid Level System Based on the Takagi-Sugeno Fuzzy Model Using the Whale Optimization Algorithm
EP  - SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp. 202
SP  - SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.197
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4500
ER  - 

@conference{
author = "Jovanović, Radiša and Zarić, Vladimir and Vesović, Mitra and Laban, Lara",
year = "2020",
abstract = "The liquid level control remains an important task for research and is used by process control engineers. Linear models for the tank system were obtained based on empirical techniques. From these identified linear models Takagi-Sugeno model was obtained and later a fuzzy controller was designed based on the parallel distributed compensation method (PDC). A comparison was made between local linear PI controllers and the parallel distributed compensation controller. The evaluation criteria which was considered in this paper is the step response. In addition to all of the above stated, the whale optimization algorithm is implemented to fine tune parameters and to obtain optimized Takagi-Sugeno plant model. Moreover, the PDC from optimized model is compared to the first parallel distributed controller, which was based on identified models.",
publisher = "Belgrade : Društvo za ETRAN, Beograd : Akademska misao",
journal = "Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020",
title = "Modeling and Control of a Liquid Level System Based on the Takagi-Sugeno Fuzzy Model Using the Whale Optimization Algorithm",
pages = "SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp. 202-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.197",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4500"
}

Jovanović, R., Zarić, V., Vesović, M.,& Laban, L.. (2020). Modeling and Control of a Liquid Level System Based on the Takagi-Sugeno Fuzzy Model Using the Whale Optimization Algorithm. in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020
Belgrade : Društvo za ETRAN., SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.197-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp. 202.
https://hdl.handle.net/21.15107/rcub_machinery_4500

Jovanović R, Zarić V, Vesović M, Laban L. Modeling and Control of a Liquid Level System Based on the Takagi-Sugeno Fuzzy Model Using the Whale Optimization Algorithm. in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020. 2020;:SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.197-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp. 202.
https://hdl.handle.net/21.15107/rcub_machinery_4500 .

Jovanović, Radiša, Zarić, Vladimir, Vesović, Mitra, Laban, Lara, "Modeling and Control of a Liquid Level System Based on the Takagi-Sugeno Fuzzy Model Using the Whale Optimization Algorithm" in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 (2020):SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.197-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp. 202,
https://hdl.handle.net/21.15107/rcub_machinery_4500 .

TY  - CONF
AU  - Laban, Lara
AU  - Jovanović, Radiša
AU  - Vesović, Mitra
AU  - Zarić, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4496
AB  - In this paper a comparison between three different
types of trained VGG convolutional neural networks (CNNs) is
proposed for the classification of a pediatric chest X-ray image
data set. A deep convolutional neural network with an
architecture resembling the VGGNet is presented using dropout,
decay and data scaling. Since the dataset had a class imbalance,
this was solved using a simple method called data scaling. The
training of the neural network was done using small batches with
a binary cross entropy loss function. The same neural network
was then implemented adding batch normalization layers, and
comparisons were made. Furthermore, the chest X-ray dataset
was also trained using transfer learning with a pre-trained
neural network VGG16 on the ImageNet dataset. Later on
juxtapositions were made on using both techniques. Additionally,
in applying these methods we were able to achieve a classification
with the accuracy higher than 0.95 and 0.97 for the training and
validation datasets, whilst incorporating only 30 epochs.
PB  - Belgrade : Društvo za ETRAN
PB  - Beograd : Akademska misao
C3  - Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020
T1  - CLASSIFICATION OF CHEST X-RAY IMAGES USING DEEP CONVOLUTIONAL NEURAL NETWORKS
EP  - SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 23
SP  - SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 18
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4496
ER  - 

@conference{
author = "Laban, Lara and Jovanović, Radiša and Vesović, Mitra and Zarić, Vladimir",
year = "2020",
abstract = "In this paper a comparison between three different
types of trained VGG convolutional neural networks (CNNs) is
proposed for the classification of a pediatric chest X-ray image
data set. A deep convolutional neural network with an
architecture resembling the VGGNet is presented using dropout,
decay and data scaling. Since the dataset had a class imbalance,
this was solved using a simple method called data scaling. The
training of the neural network was done using small batches with
a binary cross entropy loss function. The same neural network
was then implemented adding batch normalization layers, and
comparisons were made. Furthermore, the chest X-ray dataset
was also trained using transfer learning with a pre-trained
neural network VGG16 on the ImageNet dataset. Later on
juxtapositions were made on using both techniques. Additionally,
in applying these methods we were able to achieve a classification
with the accuracy higher than 0.95 and 0.97 for the training and
validation datasets, whilst incorporating only 30 epochs.",
publisher = "Belgrade : Društvo za ETRAN, Beograd : Akademska misao",
journal = "Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020",
title = "CLASSIFICATION OF CHEST X-RAY IMAGES USING DEEP CONVOLUTIONAL NEURAL NETWORKS",
pages = "SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 23-SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 18",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4496"
}

Laban, L., Jovanović, R., Vesović, M.,& Zarić, V.. (2020). CLASSIFICATION OF CHEST X-RAY IMAGES USING DEEP CONVOLUTIONAL NEURAL NETWORKS. in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020
Belgrade : Društvo za ETRAN., SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 18-SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 23.
https://hdl.handle.net/21.15107/rcub_machinery_4496

Laban L, Jovanović R, Vesović M, Zarić V. CLASSIFICATION OF CHEST X-RAY IMAGES USING DEEP CONVOLUTIONAL NEURAL NETWORKS. in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020. 2020;:SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 18-SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 23.
https://hdl.handle.net/21.15107/rcub_machinery_4496 .

Laban, Lara, Jovanović, Radiša, Vesović, Mitra, Zarić, Vladimir, "CLASSIFICATION OF CHEST X-RAY IMAGES USING DEEP CONVOLUTIONAL NEURAL NETWORKS" in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 (2020):SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 18-SESSION AII2: ARTIFICIAL INTELIGENCE: DEEP NEURAL NETWORKS AND APPLICATION pp. 23,
https://hdl.handle.net/21.15107/rcub_machinery_4496 .

TY  - CONF
AU  - Vesović, Mitra
AU  - Jovanović, Radiša
AU  - Laban, Lara
AU  - Zarić, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4492
AB  - The nonlinear feedback control system applied to the
direct current - DC motor is proposed in this research. Nonlinear
mathematical model has been obtained using dead zone, Coulomb
and viscous friction. The system stability has been analyzed using
Lyapunov stability theory. The effectiveness and the comparison
of the performance between linear and nonlinear control
algorithm have been validated using Matlab/Simulink software.
From the conclusions, based on the simulation and experimental
results that have been provided, it is easy to see that nonlinear
control systems are more suitable and have a better reach for
controlling position. The validity of using feedback linearization
in DC motors has been proven.
PB  - Belgrade : Društvo za ETRAN
PB  - Beograd : Akademska misao
C3  - Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020
T1  - MODELLING AND CONTROL OF A SERIES DIRECT CURRENT (DC) MACHINES USING FEEDBACK LINEARIZATION APPROACH
EP  - SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.196
SP  - SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.191
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4492
ER  - 

@conference{
author = "Vesović, Mitra and Jovanović, Radiša and Laban, Lara and Zarić, Vladimir",
year = "2020",
abstract = "The nonlinear feedback control system applied to the
direct current - DC motor is proposed in this research. Nonlinear
mathematical model has been obtained using dead zone, Coulomb
and viscous friction. The system stability has been analyzed using
Lyapunov stability theory. The effectiveness and the comparison
of the performance between linear and nonlinear control
algorithm have been validated using Matlab/Simulink software.
From the conclusions, based on the simulation and experimental
results that have been provided, it is easy to see that nonlinear
control systems are more suitable and have a better reach for
controlling position. The validity of using feedback linearization
in DC motors has been proven.",
publisher = "Belgrade : Društvo za ETRAN, Beograd : Akademska misao",
journal = "Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020",
title = "MODELLING AND CONTROL OF A SERIES DIRECT CURRENT (DC) MACHINES USING FEEDBACK LINEARIZATION APPROACH",
pages = "SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.196-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.191",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4492"
}

Vesović, M., Jovanović, R., Laban, L.,& Zarić, V.. (2020). MODELLING AND CONTROL OF A SERIES DIRECT CURRENT (DC) MACHINES USING FEEDBACK LINEARIZATION APPROACH. in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020
Belgrade : Društvo za ETRAN., SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.191-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.196.
https://hdl.handle.net/21.15107/rcub_machinery_4492

Vesović M, Jovanović R, Laban L, Zarić V. MODELLING AND CONTROL OF A SERIES DIRECT CURRENT (DC) MACHINES USING FEEDBACK LINEARIZATION APPROACH. in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020. 2020;:SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.191-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.196.
https://hdl.handle.net/21.15107/rcub_machinery_4492 .

Vesović, Mitra, Jovanović, Radiša, Laban, Lara, Zarić, Vladimir, "MODELLING AND CONTROL OF A SERIES DIRECT CURRENT (DC) MACHINES USING FEEDBACK LINEARIZATION APPROACH" in Зборник радова ‐ 64. Конференција за електронику, телекомуникације, рачунарство, аутоматику и нуклеарну технику / Proceedings of Papers –  7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 (2020):SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.191-SESSION AU2: CONTROL SYSTEMS 2 AUI2.2 pp.196,
https://hdl.handle.net/21.15107/rcub_machinery_4492 .

TY  - CONF
AU  - Laban, Lara
AU  - Vesović, Mitra
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4508
AB  - In this paper a method is presented for the
classification of COVID-CT (CT_COVID, CT_NonCOVID)
image data set. Four different types of deep convolutional
neural networks are proposed, two with the architecture
resembling the VGGNet, one resembling the LeNet-5 and
one using transfer learning. In addition, neural networks
utilized the following techniques: decay, dropout and batch
normalization. Since we needed to combat a significantly
small dataset, we used data augmentation in order to
transform and expand our dataset. Moreover,
juxtapositions were made when observing the results given
by these four neural networks, as well as the affect made by
two different optimizers. The training of the neural
networks was done using small batches with a binary cross
entropy loss function, in order to achieve an up to scratch
classification accuracy.
PB  - Faculty of Mechanical Engineering in Niš
PB  - Prof. Dr Nenad T. Pavlović, Dean
C3  - THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10.
T1  - Classification of COVID-CT Images Utilizing Four Types of Deep Convolutional Neural Networks
EP  - 206
SP  - MECHATRONICS AND CONTROL pp. 201
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4508
ER  - 

@conference{
author = "Laban, Lara and Vesović, Mitra",
year = "2020",
abstract = "In this paper a method is presented for the
classification of COVID-CT (CT_COVID, CT_NonCOVID)
image data set. Four different types of deep convolutional
neural networks are proposed, two with the architecture
resembling the VGGNet, one resembling the LeNet-5 and
one using transfer learning. In addition, neural networks
utilized the following techniques: decay, dropout and batch
normalization. Since we needed to combat a significantly
small dataset, we used data augmentation in order to
transform and expand our dataset. Moreover,
juxtapositions were made when observing the results given
by these four neural networks, as well as the affect made by
two different optimizers. The training of the neural
networks was done using small batches with a binary cross
entropy loss function, in order to achieve an up to scratch
classification accuracy.",
publisher = "Faculty of Mechanical Engineering in Niš, Prof. Dr Nenad T. Pavlović, Dean",
journal = "THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10.",
title = "Classification of COVID-CT Images Utilizing Four Types of Deep Convolutional Neural Networks",
pages = "206-MECHATRONICS AND CONTROL pp. 201",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4508"
}

Laban, L.,& Vesović, M.. (2020). Classification of COVID-CT Images Utilizing Four Types of Deep Convolutional Neural Networks. in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10.
Faculty of Mechanical Engineering in Niš., MECHATRONICS AND CONTROL pp. 201-206.
https://hdl.handle.net/21.15107/rcub_machinery_4508

Laban L, Vesović M. Classification of COVID-CT Images Utilizing Four Types of Deep Convolutional Neural Networks. in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10.. 2020;:MECHATRONICS AND CONTROL pp. 201-206.
https://hdl.handle.net/21.15107/rcub_machinery_4508 .

Laban, Lara, Vesović, Mitra, "Classification of COVID-CT Images Utilizing Four Types of Deep Convolutional Neural Networks" in THE FIFTH INTERNATIONAL CONFERENCE “MECHANICAL ENGINEERING IN XXI CENTURY” - MASING 2020 PROCEEDINGS -UNIVERSITY OF NIŠ FACULTY OF MECHANICAL ENGINEERING IN NIŠ, December 9-10. (2020):MECHATRONICS AND CONTROL pp. 201-206,
https://hdl.handle.net/21.15107/rcub_machinery_4508 .

TY  - JOUR
AU  - Soldat, Nataša D.
AU  - Mitrović, Radivoje
AU  - Atanasovska, Ivana
AU  - Tomović, Radoslav
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3406
AB  - This paper presents the development of a methodology for calculating radial ball bearing vibrations. First, analytical and numerical models were developed and then, the obtained results were experimentally verified. In the experiment, a test rig for a dynamic testing of bearings subjected to an external load was used. Special attention was paid to the analysis of the total bearing deformations and stiffness, being the main parameters that define the dynamic behaviour of a bearing. In order to determine total deformations of a ball bearing as an assembly, a finite element model of the bearing was developed. The results obtained from the new methodology for a particular ball bearing type have been verified by experimental results. The obtained correlations of the experimental and the numerical results are about 2.5%. Based on the calculations and the experimental testing of the chosen ball bearing type, under conditions of a variable radial load, the analysis of the influence of the radial load on the dynamic behaviour of a ball bearing was performed. The analysis of the obtained results showed that the vibration amplitude increases with a similar multiple factor as loads increase.
PB  - Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb
T2  - Transactions of Famena
T1  - A methodology for analyzing radial ball bearing vibrations
EP  - 28
IS  - 1
SP  - 13
VL  - 44
DO  - 10.21278/TOF.44102
ER  - 

@article{
author = "Soldat, Nataša D. and Mitrović, Radivoje and Atanasovska, Ivana and Tomović, Radoslav",
year = "2020",
abstract = "This paper presents the development of a methodology for calculating radial ball bearing vibrations. First, analytical and numerical models were developed and then, the obtained results were experimentally verified. In the experiment, a test rig for a dynamic testing of bearings subjected to an external load was used. Special attention was paid to the analysis of the total bearing deformations and stiffness, being the main parameters that define the dynamic behaviour of a bearing. In order to determine total deformations of a ball bearing as an assembly, a finite element model of the bearing was developed. The results obtained from the new methodology for a particular ball bearing type have been verified by experimental results. The obtained correlations of the experimental and the numerical results are about 2.5%. Based on the calculations and the experimental testing of the chosen ball bearing type, under conditions of a variable radial load, the analysis of the influence of the radial load on the dynamic behaviour of a ball bearing was performed. The analysis of the obtained results showed that the vibration amplitude increases with a similar multiple factor as loads increase.",
publisher = "Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb",
journal = "Transactions of Famena",
title = "A methodology for analyzing radial ball bearing vibrations",
pages = "28-13",
number = "1",
volume = "44",
doi = "10.21278/TOF.44102"
}

Soldat, N. D., Mitrović, R., Atanasovska, I.,& Tomović, R.. (2020). A methodology for analyzing radial ball bearing vibrations. in Transactions of Famena
Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb., 44(1), 13-28.
https://doi.org/10.21278/TOF.44102

Soldat ND, Mitrović R, Atanasovska I, Tomović R. A methodology for analyzing radial ball bearing vibrations. in Transactions of Famena. 2020;44(1):13-28.
doi:10.21278/TOF.44102 .

Soldat, Nataša D., Mitrović, Radivoje, Atanasovska, Ivana, Tomović, Radoslav, "A methodology for analyzing radial ball bearing vibrations" in Transactions of Famena, 44, no. 1 (2020):13-28,
https://doi.org/10.21278/TOF.44102 . .

TY  - CONF
AU  - Majstorović, Vidosav D.
AU  - Mitrović, Radivoje
AU  - Mišković, Žarko
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3462
AB  - Industry 4.0 has become a global programme of scientific and technological development, which covers all economic activities of today. The most developed countries have adopted their own programmes and they implement them for Industry 4.0. Our country is also intensively working on this Programme. This paper presents a model for assessing maturity and readiness of manufacturing organizations (industry branches) to operate and implement the Project I4.0 in their environment.
PB  - Springer Science and Business Media Deutschland GmbH
C3  - Lecture Notes in Mechanical Engineering
T1  - Assessing industry 4.0 readiness in manufacturing companies from Serbia
EP  - 79
SP  - 69
DO  - 10.1007/978-3-030-46212-3_4
ER  - 

@conference{
author = "Majstorović, Vidosav D. and Mitrović, Radivoje and Mišković, Žarko",
year = "2020",
abstract = "Industry 4.0 has become a global programme of scientific and technological development, which covers all economic activities of today. The most developed countries have adopted their own programmes and they implement them for Industry 4.0. Our country is also intensively working on this Programme. This paper presents a model for assessing maturity and readiness of manufacturing organizations (industry branches) to operate and implement the Project I4.0 in their environment.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Lecture Notes in Mechanical Engineering",
title = "Assessing industry 4.0 readiness in manufacturing companies from Serbia",
pages = "79-69",
doi = "10.1007/978-3-030-46212-3_4"
}

Majstorović, V. D., Mitrović, R.,& Mišković, Ž.. (2020). Assessing industry 4.0 readiness in manufacturing companies from Serbia. in Lecture Notes in Mechanical Engineering
Springer Science and Business Media Deutschland GmbH., 69-79.
https://doi.org/10.1007/978-3-030-46212-3_4

Majstorović VD, Mitrović R, Mišković Ž. Assessing industry 4.0 readiness in manufacturing companies from Serbia. in Lecture Notes in Mechanical Engineering. 2020;:69-79.
doi:10.1007/978-3-030-46212-3_4 .

Majstorović, Vidosav D., Mitrović, Radivoje, Mišković, Žarko, "Assessing industry 4.0 readiness in manufacturing companies from Serbia" in Lecture Notes in Mechanical Engineering (2020):69-79,
https://doi.org/10.1007/978-3-030-46212-3_4 . .