TY  - JOUR
AU  - Ristivojević, Mileta
AU  - Lučanin, Vojkan
AU  - Dimić, Aleksandar
AU  - Mišković, Žarko
AU  - Burzić, Zijah
AU  - Stamenić, Zoran
AU  - Rackov, Milan
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3960
AB  - For heavy vehicle systems, within the power transmission chain from the driving machine to the working components (wheels), gears have a large share of application in the form of gearboxes, differentials and speed reducers. Their purpose is to achieve the highest possible output torque at the working components. In one heavy-duty truck, the gearbox lost its working capacity due to the failure of its vital parts: a tapered roller bearing and a helical gear. The analysis presented in this paper, conducted on the basis of experimental and analytical methods, showed that, due to inadequate installation of the bearings’ outer ring in the gearbox housing in one intermediate shaft support, the roller bearing performed its elementary function in very unfavorable working conditions of mechanical and thermal nature. Due to the damage accumulation, the roller bearing gradually lost its working capacity. As a result, the intensity of the working conditions of the entire gearbox increased. At the moment when they reached the critical value from the aspect of the gear teeth bending strength, volumetric destruction occurred, i.e fracture of the helical gear tooth, and thus the cessation of gearbox power transmission.
PB  - Elsevier
T2  - Engineering Failure Analysis
T1  - Investigation of the heavy duty truck gear drive failure
IS  - February
SP  - 106995
VL  - 144
DO  - 10.1016/j.engfailanal.2022.106995
ER  - 

@article{
author = "Ristivojević, Mileta and Lučanin, Vojkan and Dimić, Aleksandar and Mišković, Žarko and Burzić, Zijah and Stamenić, Zoran and Rackov, Milan",
year = "2023",
abstract = "For heavy vehicle systems, within the power transmission chain from the driving machine to the working components (wheels), gears have a large share of application in the form of gearboxes, differentials and speed reducers. Their purpose is to achieve the highest possible output torque at the working components. In one heavy-duty truck, the gearbox lost its working capacity due to the failure of its vital parts: a tapered roller bearing and a helical gear. The analysis presented in this paper, conducted on the basis of experimental and analytical methods, showed that, due to inadequate installation of the bearings’ outer ring in the gearbox housing in one intermediate shaft support, the roller bearing performed its elementary function in very unfavorable working conditions of mechanical and thermal nature. Due to the damage accumulation, the roller bearing gradually lost its working capacity. As a result, the intensity of the working conditions of the entire gearbox increased. At the moment when they reached the critical value from the aspect of the gear teeth bending strength, volumetric destruction occurred, i.e fracture of the helical gear tooth, and thus the cessation of gearbox power transmission.",
publisher = "Elsevier",
journal = "Engineering Failure Analysis",
title = "Investigation of the heavy duty truck gear drive failure",
number = "February",
pages = "106995",
volume = "144",
doi = "10.1016/j.engfailanal.2022.106995"
}

Ristivojević, M., Lučanin, V., Dimić, A., Mišković, Ž., Burzić, Z., Stamenić, Z.,& Rackov, M.. (2023). Investigation of the heavy duty truck gear drive failure. in Engineering Failure Analysis
Elsevier., 144(February), 106995.
https://doi.org/10.1016/j.engfailanal.2022.106995

Ristivojević M, Lučanin V, Dimić A, Mišković Ž, Burzić Z, Stamenić Z, Rackov M. Investigation of the heavy duty truck gear drive failure. in Engineering Failure Analysis. 2023;144(February):106995.
doi:10.1016/j.engfailanal.2022.106995 .

Ristivojević, Mileta, Lučanin, Vojkan, Dimić, Aleksandar, Mišković, Žarko, Burzić, Zijah, Stamenić, Zoran, Rackov, Milan, "Investigation of the heavy duty truck gear drive failure" in Engineering Failure Analysis, 144, no. February (2023):106995,
https://doi.org/10.1016/j.engfailanal.2022.106995 . .

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  - JOUR
AU  - Dimić, Aleksandar
AU  - Vencl, Aleksandar
AU  - Ristivojević, Mileta
AU  - Mitrović, Radivoje
AU  - Mišković, Žarko
AU  - Milivojević, Aleksandar
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3749
AB  - The influence of the running-in process operating parameters on tribological properties of the block-on-disc samples in lubricated sliding conditions is analyzed and discussed in detail. Different running-in regimes are achieved by varying the normal load and sliding speed. After the running-in period, during which the operating parameters are varied, all samples are placed in a working regime under the same set of operating conditions. At the end of the running-in period, as well as at the end of the working period, an analysis of the changes in the surface roughness, microhardness, wear rate, and coefficient of friction is performed. Less desirable properties in terms of wear rate and steady-state coefficient of friction are noticed for the samples that were run-in with the operating conditions which were the same as the working regime operating conditions. In the defined test conditions, it is shown that the intensity of normal load applied during the running-in process has a dominant influence on the amount of wear and coefficient of friction value. It was also shown that the running-in process can significantly improve the roughness of the initially rough contact surfaces. The results of experimental testing indicate that the variation of the operating parameters during the running-in process can be used to improve the working ability of the sliding contact surfaces under the mixed lubrication regime.
PB  - Sage Publications Ltd, London
T2  - Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology
T1  - Influence of the running-in process on the working ability of contact surfaces in lubricated sliding conditions
EP  - 700
IS  - 4
SP  - 691
VL  - 236
DO  - 10.1177/13506501211027711
ER  - 

@article{
author = "Dimić, Aleksandar and Vencl, Aleksandar and Ristivojević, Mileta and Mitrović, Radivoje and Mišković, Žarko and Milivojević, Aleksandar",
year = "2022",
abstract = "The influence of the running-in process operating parameters on tribological properties of the block-on-disc samples in lubricated sliding conditions is analyzed and discussed in detail. Different running-in regimes are achieved by varying the normal load and sliding speed. After the running-in period, during which the operating parameters are varied, all samples are placed in a working regime under the same set of operating conditions. At the end of the running-in period, as well as at the end of the working period, an analysis of the changes in the surface roughness, microhardness, wear rate, and coefficient of friction is performed. Less desirable properties in terms of wear rate and steady-state coefficient of friction are noticed for the samples that were run-in with the operating conditions which were the same as the working regime operating conditions. In the defined test conditions, it is shown that the intensity of normal load applied during the running-in process has a dominant influence on the amount of wear and coefficient of friction value. It was also shown that the running-in process can significantly improve the roughness of the initially rough contact surfaces. The results of experimental testing indicate that the variation of the operating parameters during the running-in process can be used to improve the working ability of the sliding contact surfaces under the mixed lubrication regime.",
publisher = "Sage Publications Ltd, London",
journal = "Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology",
title = "Influence of the running-in process on the working ability of contact surfaces in lubricated sliding conditions",
pages = "700-691",
number = "4",
volume = "236",
doi = "10.1177/13506501211027711"
}

Dimić, A., Vencl, A., Ristivojević, M., Mitrović, R., Mišković, Ž.,& Milivojević, A.. (2022). Influence of the running-in process on the working ability of contact surfaces in lubricated sliding conditions. in Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology
Sage Publications Ltd, London., 236(4), 691-700.
https://doi.org/10.1177/13506501211027711

Dimić A, Vencl A, Ristivojević M, Mitrović R, Mišković Ž, Milivojević A. Influence of the running-in process on the working ability of contact surfaces in lubricated sliding conditions. in Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology. 2022;236(4):691-700.
doi:10.1177/13506501211027711 .

Dimić, Aleksandar, Vencl, Aleksandar, Ristivojević, Mileta, Mitrović, Radivoje, Mišković, Žarko, Milivojević, Aleksandar, "Influence of the running-in process on the working ability of contact surfaces in lubricated sliding conditions" in Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, 236, no. 4 (2022):691-700,
https://doi.org/10.1177/13506501211027711 . .

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  - 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  - CONF
AU  - Mitrović, Radivoje
AU  - Mišković, Žarko
AU  - Stamenić, Zoran
AU  - Soldat, Nataša D.
AU  - Matić, N.S.
AU  - Ristivojević, Mileta
AU  - Dimić, Aleksandar
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3184
AB  - The efficiency of thermal power plants significantly depends on the efficiency of belt conveyor systems. Conveyor idlers, as key parts of belt conveyors, are often the main cause of bulk material transportation systems failures. Testing the operational characteristics of conveyor idlers in laboratory and exploitation conditions is a prerequisite for any progress in the field of increasing energy efficiency of conveyor systems. This paper describes an analysis and discussion of testing results for different types of conveyor idlers, in terms of their performances under the act of predefined radial load. Tests were conducted on a new conveyor idler's testing machine developed at the University of Belgrade-Faculty of Mechanical Engineering. The presented tests are performed in order to determine the quality of carrying and return conveyor idlers. The obtained results will help in solving the key problems in the critical areas of conveyor systems and will increase their energy efficiency. Finally, the expected results can potentially reduce the financial and energy losses which conveyor idlers cause in belt conveyor systems, as well as in the whole system of thermal power plants.
PB  - Institute of Physics Publishing
C3  - IOP Conference Series: Materials Science and Engineering
T1  - Experimental investigation of conveyor idlers operational characteristics
IS  - 1
VL  - 659
DO  - 10.1088/1757-899X/659/1/012067
ER  - 

@conference{
author = "Mitrović, Radivoje and Mišković, Žarko and Stamenić, Zoran and Soldat, Nataša D. and Matić, N.S. and Ristivojević, Mileta and Dimić, Aleksandar",
year = "2019",
abstract = "The efficiency of thermal power plants significantly depends on the efficiency of belt conveyor systems. Conveyor idlers, as key parts of belt conveyors, are often the main cause of bulk material transportation systems failures. Testing the operational characteristics of conveyor idlers in laboratory and exploitation conditions is a prerequisite for any progress in the field of increasing energy efficiency of conveyor systems. This paper describes an analysis and discussion of testing results for different types of conveyor idlers, in terms of their performances under the act of predefined radial load. Tests were conducted on a new conveyor idler's testing machine developed at the University of Belgrade-Faculty of Mechanical Engineering. The presented tests are performed in order to determine the quality of carrying and return conveyor idlers. The obtained results will help in solving the key problems in the critical areas of conveyor systems and will increase their energy efficiency. Finally, the expected results can potentially reduce the financial and energy losses which conveyor idlers cause in belt conveyor systems, as well as in the whole system of thermal power plants.",
publisher = "Institute of Physics Publishing",
journal = "IOP Conference Series: Materials Science and Engineering",
title = "Experimental investigation of conveyor idlers operational characteristics",
number = "1",
volume = "659",
doi = "10.1088/1757-899X/659/1/012067"
}

Mitrović, R., Mišković, Ž., Stamenić, Z., Soldat, N. D., Matić, N.S., Ristivojević, M.,& Dimić, A.. (2019). Experimental investigation of conveyor idlers operational characteristics. in IOP Conference Series: Materials Science and Engineering
Institute of Physics Publishing., 659(1).
https://doi.org/10.1088/1757-899X/659/1/012067

Mitrović R, Mišković Ž, Stamenić Z, Soldat ND, Matić N, Ristivojević M, Dimić A. Experimental investigation of conveyor idlers operational characteristics. in IOP Conference Series: Materials Science and Engineering. 2019;659(1).
doi:10.1088/1757-899X/659/1/012067 .

Mitrović, Radivoje, Mišković, Žarko, Stamenić, Zoran, Soldat, Nataša D., Matić, N.S., Ristivojević, Mileta, Dimić, Aleksandar, "Experimental investigation of conveyor idlers operational characteristics" in IOP Conference Series: Materials Science and Engineering, 659, no. 1 (2019),
https://doi.org/10.1088/1757-899X/659/1/012067 . .

TY  - JOUR
AU  - Dobratić, Predrag S.
AU  - Ristivojević, Mileta
AU  - Rosić, Božidar
AU  - Mitrović, Radivoje
AU  - Trifković, Dragan
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3039
AB  - The impact of geometric parameters of teeth and lubricating oils to the efficiency of involute internal spur gears, when the transverse contact ratio is 2  lt  epsilon(alpha)  lt = 3, has been analyzed in this paper. The mathematical model and computer program for determining the current and the effective value of the efficiency have been developed. The influence of the character of load distribution and energy losses due to heating effects during the meshing period is included in the factor of load distribution. The results of computer simulation are given in the form of a diagram of the current values of the efficiency during the meshing period. Also, the values of effective efficiency for the considered cylindrical gear pairs have been calculated.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Mathematical model of energy efficiency in internal spur gears
EP  - S1813
SP  - S1801
VL  - 23
DO  - 10.2298/TSCI180118074D
ER  - 

@article{
author = "Dobratić, Predrag S. and Ristivojević, Mileta and Rosić, Božidar and Mitrović, Radivoje and Trifković, Dragan",
year = "2019",
abstract = "The impact of geometric parameters of teeth and lubricating oils to the efficiency of involute internal spur gears, when the transverse contact ratio is 2  lt  epsilon(alpha)  lt = 3, has been analyzed in this paper. The mathematical model and computer program for determining the current and the effective value of the efficiency have been developed. The influence of the character of load distribution and energy losses due to heating effects during the meshing period is included in the factor of load distribution. The results of computer simulation are given in the form of a diagram of the current values of the efficiency during the meshing period. Also, the values of effective efficiency for the considered cylindrical gear pairs have been calculated.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Mathematical model of energy efficiency in internal spur gears",
pages = "S1813-S1801",
volume = "23",
doi = "10.2298/TSCI180118074D"
}

Dobratić, P. S., Ristivojević, M., Rosić, B., Mitrović, R.,& Trifković, D.. (2019). Mathematical model of energy efficiency in internal spur gears. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23, S1801-S1813.
https://doi.org/10.2298/TSCI180118074D

Dobratić PS, Ristivojević M, Rosić B, Mitrović R, Trifković D. Mathematical model of energy efficiency in internal spur gears. in Thermal Science. 2019;23:S1801-S1813.
doi:10.2298/TSCI180118074D .

Dobratić, Predrag S., Ristivojević, Mileta, Rosić, Božidar, Mitrović, Radivoje, Trifković, Dragan, "Mathematical model of energy efficiency in internal spur gears" in Thermal Science, 23 (2019):S1801-S1813,
https://doi.org/10.2298/TSCI180118074D . .

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

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

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

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

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

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

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

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

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

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

TY  - CONF
AU  - Mitrović, Radivoje
AU  - Mišković, Žarko
AU  - Ristivojević, Mileta
AU  - Dimić, Aleksandar
AU  - Danko, Jan
AU  - Bucha, Jozef
AU  - Rackov, M.
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2975
AB  - Nowadays, rapid prototyping technologies are available at very affordable prices. This is the main reason why they are being used in almost all industry sectors. 3D printers are currently being widely used for rapid prototyping and development of the new products. However, taking into account the permanent progress of rapid prototyping materials mechanical characteristics (usually different kinds of plastics), 3D printers are sometimes used even for production of the failed parts replacements - operating at the low load and rotational speed conditions. This is the main goal of this paper - to establish optimal 3D printing parameters (printing direction, layer height and percent of infill) which will allow printed gears to replace failed steel gears, for at least some time, enough for spare steel gears to be produced and delivered on site. Taking into account previously mentioned facts, the application of the 3D printed gears can potentially provide the reduction of maintenance delays in different industrial facilities (factories, workshops, etc.) which will consequently lead to significant energy and financial savings.
PB  - Institute of Physics Publishing
C3  - IOP Conference Series: Materials Science and Engineering
T1  - Determination of optimal parameters for rapid prototyping of the involute gears
IS  - 1
VL  - 393
DO  - 10.1088/1757-899X/393/1/012105
ER  - 

@conference{
author = "Mitrović, Radivoje and Mišković, Žarko and Ristivojević, Mileta and Dimić, Aleksandar and Danko, Jan and Bucha, Jozef and Rackov, M.",
year = "2018",
abstract = "Nowadays, rapid prototyping technologies are available at very affordable prices. This is the main reason why they are being used in almost all industry sectors. 3D printers are currently being widely used for rapid prototyping and development of the new products. However, taking into account the permanent progress of rapid prototyping materials mechanical characteristics (usually different kinds of plastics), 3D printers are sometimes used even for production of the failed parts replacements - operating at the low load and rotational speed conditions. This is the main goal of this paper - to establish optimal 3D printing parameters (printing direction, layer height and percent of infill) which will allow printed gears to replace failed steel gears, for at least some time, enough for spare steel gears to be produced and delivered on site. Taking into account previously mentioned facts, the application of the 3D printed gears can potentially provide the reduction of maintenance delays in different industrial facilities (factories, workshops, etc.) which will consequently lead to significant energy and financial savings.",
publisher = "Institute of Physics Publishing",
journal = "IOP Conference Series: Materials Science and Engineering",
title = "Determination of optimal parameters for rapid prototyping of the involute gears",
number = "1",
volume = "393",
doi = "10.1088/1757-899X/393/1/012105"
}

Mitrović, R., Mišković, Ž., Ristivojević, M., Dimić, A., Danko, J., Bucha, J.,& Rackov, M.. (2018). Determination of optimal parameters for rapid prototyping of the involute gears. in IOP Conference Series: Materials Science and Engineering
Institute of Physics Publishing., 393(1).
https://doi.org/10.1088/1757-899X/393/1/012105

Mitrović R, Mišković Ž, Ristivojević M, Dimić A, Danko J, Bucha J, Rackov M. Determination of optimal parameters for rapid prototyping of the involute gears. in IOP Conference Series: Materials Science and Engineering. 2018;393(1).
doi:10.1088/1757-899X/393/1/012105 .

Mitrović, Radivoje, Mišković, Žarko, Ristivojević, Mileta, Dimić, Aleksandar, Danko, Jan, Bucha, Jozef, Rackov, M., "Determination of optimal parameters for rapid prototyping of the involute gears" in IOP Conference Series: Materials Science and Engineering, 393, no. 1 (2018),
https://doi.org/10.1088/1757-899X/393/1/012105 . .

TY  - CONF
AU  - Mitrović, Radivoje
AU  - Mišković, Žarko
AU  - Ristivojević, Mileta
AU  - Dimić, Aleksandar
AU  - Danko, Jan
AU  - Bucha, Jozef
AU  - Milesich, Tomas
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2835
AB  - In the strides of the most advanced technological achievements, the use of polymers is becoming increasingly evident both in everyday life and in engineering practice. Complex structures made of polymers attract more attention from scientists and researchers, as their application increases in the most diverse fields of science. This phenomenon requires constant improvement of knowledge and technologies for the production of polymeric structures and parts, but it is equally important to establish reliable databases on the behavior of newly-introduced materials under different load conditions. This work is based on the establishment of statistical correlation between parameters of 3D printed models and their mechanical characteristics in conditions of static axial loading.
PB  - Elsevier Science Bv, Amsterdam
C3  - Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
T1  - Statistical correlation between the printing angle and stress and strain of 3D printed models
EP  - 482
SP  - 475
VL  - 13
DO  - 10.1016/j.prostr.2018.12.079
ER  - 

@conference{
author = "Mitrović, Radivoje and Mišković, Žarko and Ristivojević, Mileta and Dimić, Aleksandar and Danko, Jan and Bucha, Jozef and Milesich, Tomas",
year = "2018",
abstract = "In the strides of the most advanced technological achievements, the use of polymers is becoming increasingly evident both in everyday life and in engineering practice. Complex structures made of polymers attract more attention from scientists and researchers, as their application increases in the most diverse fields of science. This phenomenon requires constant improvement of knowledge and technologies for the production of polymeric structures and parts, but it is equally important to establish reliable databases on the behavior of newly-introduced materials under different load conditions. This work is based on the establishment of statistical correlation between parameters of 3D printed models and their mechanical characteristics in conditions of static axial loading.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity",
title = "Statistical correlation between the printing angle and stress and strain of 3D printed models",
pages = "482-475",
volume = "13",
doi = "10.1016/j.prostr.2018.12.079"
}

Mitrović, R., Mišković, Ž., Ristivojević, M., Dimić, A., Danko, J., Bucha, J.,& Milesich, T.. (2018). Statistical correlation between the printing angle and stress and strain of 3D printed models. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
Elsevier Science Bv, Amsterdam., 13, 475-482.
https://doi.org/10.1016/j.prostr.2018.12.079

Mitrović R, Mišković Ž, Ristivojević M, Dimić A, Danko J, Bucha J, Milesich T. Statistical correlation between the printing angle and stress and strain of 3D printed models. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity. 2018;13:475-482.
doi:10.1016/j.prostr.2018.12.079 .

Mitrović, Radivoje, Mišković, Žarko, Ristivojević, Mileta, Dimić, Aleksandar, Danko, Jan, Bucha, Jozef, Milesich, Tomas, "Statistical correlation between the printing angle and stress and strain of 3D printed models" in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity, 13 (2018):475-482,
https://doi.org/10.1016/j.prostr.2018.12.079 . .

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

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

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

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

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

TY  - JOUR
AU  - Dimić, Aleksandar
AU  - Mišković, Žarko
AU  - Mitrović, Radivoje
AU  - Ristivojević, Mileta
AU  - Stamenić, Zoran
AU  - Danko, Jan
AU  - Bucha, Jozef
AU  - Milesich, Tomas
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2970
AB  - The advanced development of additive technologies over the past years led to the fact that parts made by these technologies have been increasingly used in the most diverse engineering applications. One of the most famous and the most applied additive technology is 3D printing. In this paper the influence of the material type on the operational characteristics of spur gears manufactured by the 3D printing technology is analyzed, after the experimental testing performed on a back to back gear test rig, in the predefined laboratory conditions.
PB  - Sciendo
T2  - Strojnicky Casopis
T1  - The influence of material on the operational characteristics of spur gears manufactured by the 3D printing technology
EP  - 270
IS  - 3
SP  - 261
VL  - 68
DO  - 10.2478/scjme-2018-0039
ER  - 

@article{
author = "Dimić, Aleksandar and Mišković, Žarko and Mitrović, Radivoje and Ristivojević, Mileta and Stamenić, Zoran and Danko, Jan and Bucha, Jozef and Milesich, Tomas",
year = "2018",
abstract = "The advanced development of additive technologies over the past years led to the fact that parts made by these technologies have been increasingly used in the most diverse engineering applications. One of the most famous and the most applied additive technology is 3D printing. In this paper the influence of the material type on the operational characteristics of spur gears manufactured by the 3D printing technology is analyzed, after the experimental testing performed on a back to back gear test rig, in the predefined laboratory conditions.",
publisher = "Sciendo",
journal = "Strojnicky Casopis",
title = "The influence of material on the operational characteristics of spur gears manufactured by the 3D printing technology",
pages = "270-261",
number = "3",
volume = "68",
doi = "10.2478/scjme-2018-0039"
}

Dimić, A., Mišković, Ž., Mitrović, R., Ristivojević, M., Stamenić, Z., Danko, J., Bucha, J.,& Milesich, T.. (2018). The influence of material on the operational characteristics of spur gears manufactured by the 3D printing technology. in Strojnicky Casopis
Sciendo., 68(3), 261-270.
https://doi.org/10.2478/scjme-2018-0039

Dimić A, Mišković Ž, Mitrović R, Ristivojević M, Stamenić Z, Danko J, Bucha J, Milesich T. The influence of material on the operational characteristics of spur gears manufactured by the 3D printing technology. in Strojnicky Casopis. 2018;68(3):261-270.
doi:10.2478/scjme-2018-0039 .

Dimić, Aleksandar, Mišković, Žarko, Mitrović, Radivoje, Ristivojević, Mileta, Stamenić, Zoran, Danko, Jan, Bucha, Jozef, Milesich, Tomas, "The influence of material on the operational characteristics of spur gears manufactured by the 3D printing technology" in Strojnicky Casopis, 68, no. 3 (2018):261-270,
https://doi.org/10.2478/scjme-2018-0039 . .

TY  - JOUR
AU  - Ristivojević, Mileta
AU  - Lazović, Tatjana
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2697
AB  - Spur gear load carrying capacity and mass are primarily dependent of the tooth root stress. Geometric and kinematic parameters of gear teeth pairs produce multiple effects on the tooth root stress: through tooth root critical section location and root fillet radius, tooth profile shape and load leading point location on tooth profile, as well as through tooth stiffness. In the conventional calculation procedure, according to ISO standard, the influence of geometric and kinematic parameters of the gear pair on the tooth root stress is considered through the "contact ratio factor" Y-epsilon , whose values are determined using the approximate expressions. To view the real effects of geometric and kinematic parameters of the gear pair on the tooth root stress analytical model is developed, defining non-dimensional relative stress factor. The analysis comprises two groups of cylindrical gear pairs with different gear ratios and different coefficients of addendum modification. The results obtained are compared with the results of standard calculation procedure according to ISO standard. In addition, the developed analytical model is used to explain the assumptions, physicality and boundary conditions of the "contact ratio factor" Y-epsilon.
PB  - Editura Academiei Romane
T2  - Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Sc
T1  - Influence of kinematic parameters and tooth geometry on gear tooth root load capacity
EP  - 181
IS  - 2
SP  - 174
VL  - 18
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2697
ER  - 

@article{
author = "Ristivojević, Mileta and Lazović, Tatjana",
year = "2017",
abstract = "Spur gear load carrying capacity and mass are primarily dependent of the tooth root stress. Geometric and kinematic parameters of gear teeth pairs produce multiple effects on the tooth root stress: through tooth root critical section location and root fillet radius, tooth profile shape and load leading point location on tooth profile, as well as through tooth stiffness. In the conventional calculation procedure, according to ISO standard, the influence of geometric and kinematic parameters of the gear pair on the tooth root stress is considered through the "contact ratio factor" Y-epsilon , whose values are determined using the approximate expressions. To view the real effects of geometric and kinematic parameters of the gear pair on the tooth root stress analytical model is developed, defining non-dimensional relative stress factor. The analysis comprises two groups of cylindrical gear pairs with different gear ratios and different coefficients of addendum modification. The results obtained are compared with the results of standard calculation procedure according to ISO standard. In addition, the developed analytical model is used to explain the assumptions, physicality and boundary conditions of the "contact ratio factor" Y-epsilon.",
publisher = "Editura Academiei Romane",
journal = "Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Sc",
title = "Influence of kinematic parameters and tooth geometry on gear tooth root load capacity",
pages = "181-174",
number = "2",
volume = "18",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2697"
}

Ristivojević, M.,& Lazović, T.. (2017). Influence of kinematic parameters and tooth geometry on gear tooth root load capacity. in Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Sc
Editura Academiei Romane., 18(2), 174-181.
https://hdl.handle.net/21.15107/rcub_machinery_2697

Ristivojević M, Lazović T. Influence of kinematic parameters and tooth geometry on gear tooth root load capacity. in Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Sc. 2017;18(2):174-181.
https://hdl.handle.net/21.15107/rcub_machinery_2697 .

Ristivojević, Mileta, Lazović, Tatjana, "Influence of kinematic parameters and tooth geometry on gear tooth root load capacity" in Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Sc, 18, no. 2 (2017):174-181,
https://hdl.handle.net/21.15107/rcub_machinery_2697 .

TY  - CONF
AU  - Dimić, Aleksandar
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Šijački Žeravčić, Vera
AU  - Ristivojević, Mileta
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5019
AB  - Modified 2.25Cr1Mo steel, known as a relatively new
generation, grade T24 heat resistant steel (7CrMoVTiB10-
10), is extensively used as a material for fabrication of water
walls panels - evaporator tubes in supercritical boilers of a
new generation in thermal power plants. A special
advantage of T24 steel is low carbon content and the
optimal content of alloying element which simultaneously
provides its good weldability and heat resistance. For
elements up to 10 mm of thickness, made of T24 steel
standards not foreseen previous and subsequent post-weld
heat treatment (PWHT). However, after a series of problems
encountered with welded joints, practice has shown that
some kind of heat treatment is necessary, in order to reduce
the susceptibility to hydrogen induced stress corrosion
cracking (HISCC). This paper deals with the microstructural
characterization of both base material and welded joint of
boiler tube (dimension �����44,5x7,1 mm), made of T24 steel,
before and after PWHT. The aim of this paper is to evaluate
the effect of this type of PWHT on microstructural changes
and its possible impact on the susceptibility to cracking of
T24 welded joints.
PB  - National R&D Institute for Welding and Material Testing- ISIM Timisoara (Romania)
C3  - The 3rd IIW South-East European Welding congress, 2015.,Temisoara
T1  - Characterization of welded joint made of T24 steel (7CrMoVTiB10-10) with and without post-weld heat treatment
EP  - 189
SP  - 185
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5019
ER  - 

@conference{
author = "Dimić, Aleksandar and Bakić, Gordana and Đukić, Miloš and Šijački Žeravčić, Vera and Ristivojević, Mileta",
year = "2015",
abstract = "Modified 2.25Cr1Mo steel, known as a relatively new
generation, grade T24 heat resistant steel (7CrMoVTiB10-
10), is extensively used as a material for fabrication of water
walls panels - evaporator tubes in supercritical boilers of a
new generation in thermal power plants. A special
advantage of T24 steel is low carbon content and the
optimal content of alloying element which simultaneously
provides its good weldability and heat resistance. For
elements up to 10 mm of thickness, made of T24 steel
standards not foreseen previous and subsequent post-weld
heat treatment (PWHT). However, after a series of problems
encountered with welded joints, practice has shown that
some kind of heat treatment is necessary, in order to reduce
the susceptibility to hydrogen induced stress corrosion
cracking (HISCC). This paper deals with the microstructural
characterization of both base material and welded joint of
boiler tube (dimension �����44,5x7,1 mm), made of T24 steel,
before and after PWHT. The aim of this paper is to evaluate
the effect of this type of PWHT on microstructural changes
and its possible impact on the susceptibility to cracking of
T24 welded joints.",
publisher = "National R&D Institute for Welding and Material Testing- ISIM Timisoara (Romania)",
journal = "The 3rd IIW South-East European Welding congress, 2015.,Temisoara",
title = "Characterization of welded joint made of T24 steel (7CrMoVTiB10-10) with and without post-weld heat treatment",
pages = "189-185",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5019"
}

Dimić, A., Bakić, G., Đukić, M., Šijački Žeravčić, V.,& Ristivojević, M.. (2015). Characterization of welded joint made of T24 steel (7CrMoVTiB10-10) with and without post-weld heat treatment. in The 3rd IIW South-East European Welding congress, 2015.,Temisoara
National R&D Institute for Welding and Material Testing- ISIM Timisoara (Romania)., 185-189.
https://hdl.handle.net/21.15107/rcub_machinery_5019

Dimić A, Bakić G, Đukić M, Šijački Žeravčić V, Ristivojević M. Characterization of welded joint made of T24 steel (7CrMoVTiB10-10) with and without post-weld heat treatment. in The 3rd IIW South-East European Welding congress, 2015.,Temisoara. 2015;:185-189.
https://hdl.handle.net/21.15107/rcub_machinery_5019 .

Dimić, Aleksandar, Bakić, Gordana, Đukić, Miloš, Šijački Žeravčić, Vera, Ristivojević, Mileta, "Characterization of welded joint made of T24 steel (7CrMoVTiB10-10) with and without post-weld heat treatment" in The 3rd IIW South-East European Welding congress, 2015.,Temisoara (2015):185-189,
https://hdl.handle.net/21.15107/rcub_machinery_5019 .

TY  - JOUR
AU  - Odanović, Zoran
AU  - Ristivojević, Mileta
AU  - Milošević-Mitić, Vesna
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3933
AB  - Railway axles are vital parts of railway. Their failure in the form of dynamic fracture is commonly of disastrous outcomes for railway vehicles. Accordingly, railway axles are designed to be highly reliable, while the maintenance system requires regular inspection in terms of crack initiation. However, due to complex exploitation conditions, complex stress state and multiple stress concentration, railway axles often experience fatigue failures. This occurrence has been studied in a large number of papers. This paper too sheds light on the causes of fracture occurrence in the axle of railway freight car for coal transport in a thermal power plant. Detailed analyses were conducted on the axle fracture surface and mechanical properties. Also, microstructure of the axle material, as well as on exploitation conditions and stress state was examined. Calculations indicated that, apart from working load impact, the influence of press fit joints, especially of the one between the labyrinth seal and the axle is of crucial importance for the analysis of railway axle stress state. The entire numerical-experimental analysis has shown that the considered axle failure was caused by inadequate maintenance, insufficient axle strength and adverse stress state in the railway axle critical cross-sections.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Investigation into the causes of fracture in railway freight car axle
EP  - 181
SP  - 169
VL  - 55
DO  - 10.1016/j.engfailanal.2015.05.011
ER  - 

@article{
author = "Odanović, Zoran and Ristivojević, Mileta and Milošević-Mitić, Vesna",
year = "2015",
abstract = "Railway axles are vital parts of railway. Their failure in the form of dynamic fracture is commonly of disastrous outcomes for railway vehicles. Accordingly, railway axles are designed to be highly reliable, while the maintenance system requires regular inspection in terms of crack initiation. However, due to complex exploitation conditions, complex stress state and multiple stress concentration, railway axles often experience fatigue failures. This occurrence has been studied in a large number of papers. This paper too sheds light on the causes of fracture occurrence in the axle of railway freight car for coal transport in a thermal power plant. Detailed analyses were conducted on the axle fracture surface and mechanical properties. Also, microstructure of the axle material, as well as on exploitation conditions and stress state was examined. Calculations indicated that, apart from working load impact, the influence of press fit joints, especially of the one between the labyrinth seal and the axle is of crucial importance for the analysis of railway axle stress state. The entire numerical-experimental analysis has shown that the considered axle failure was caused by inadequate maintenance, insufficient axle strength and adverse stress state in the railway axle critical cross-sections.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Investigation into the causes of fracture in railway freight car axle",
pages = "181-169",
volume = "55",
doi = "10.1016/j.engfailanal.2015.05.011"
}

Odanović, Z., Ristivojević, M.,& Milošević-Mitić, V.. (2015). Investigation into the causes of fracture in railway freight car axle. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 55, 169-181.
https://doi.org/10.1016/j.engfailanal.2015.05.011

Odanović Z, Ristivojević M, Milošević-Mitić V. Investigation into the causes of fracture in railway freight car axle. in Engineering Failure Analysis. 2015;55:169-181.
doi:10.1016/j.engfailanal.2015.05.011 .

Odanović, Zoran, Ristivojević, Mileta, Milošević-Mitić, Vesna, "Investigation into the causes of fracture in railway freight car axle" in Engineering Failure Analysis, 55 (2015):169-181,
https://doi.org/10.1016/j.engfailanal.2015.05.011 . .

TY  - JOUR
AU  - Odanović, Zoran
AU  - Ristivojević, Mileta
AU  - Milošević-Mitić, Vesna
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2251
AB  - Railway axles are vital parts of railway. Their failure in the form of dynamic fracture is commonly of disastrous outcomes for railway vehicles. Accordingly, railway axles are designed to be highly reliable, while the maintenance system requires regular inspection in terms of crack initiation. However, due to complex exploitation conditions, complex stress state and multiple stress concentration, railway axles often experience fatigue failures. This occurrence has been studied in a large number of papers. This paper too sheds light on the causes of fracture occurrence in the axle of railway freight car for coal transport in a thermal power plant. Detailed analyses were conducted on the axle fracture surface and mechanical properties. Also, microstructure of the axle material, as well as on exploitation conditions and stress state was examined. Calculations indicated that, apart from working load impact, the influence of press fit joints, especially of the one between the labyrinth seal and the axle is of crucial importance for the analysis of railway axle stress state. The entire numerical-experimental analysis has shown that the considered axle failure was caused by inadequate maintenance, insufficient axle strength and adverse stress state in the railway axle critical cross-sections.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Investigation into the causes of fracture in railway freight car axle
EP  - 181
SP  - 169
VL  - 55
DO  - 10.1016/j.engfailanal.2015.05.011
ER  - 

@article{
author = "Odanović, Zoran and Ristivojević, Mileta and Milošević-Mitić, Vesna",
year = "2015",
abstract = "Railway axles are vital parts of railway. Their failure in the form of dynamic fracture is commonly of disastrous outcomes for railway vehicles. Accordingly, railway axles are designed to be highly reliable, while the maintenance system requires regular inspection in terms of crack initiation. However, due to complex exploitation conditions, complex stress state and multiple stress concentration, railway axles often experience fatigue failures. This occurrence has been studied in a large number of papers. This paper too sheds light on the causes of fracture occurrence in the axle of railway freight car for coal transport in a thermal power plant. Detailed analyses were conducted on the axle fracture surface and mechanical properties. Also, microstructure of the axle material, as well as on exploitation conditions and stress state was examined. Calculations indicated that, apart from working load impact, the influence of press fit joints, especially of the one between the labyrinth seal and the axle is of crucial importance for the analysis of railway axle stress state. The entire numerical-experimental analysis has shown that the considered axle failure was caused by inadequate maintenance, insufficient axle strength and adverse stress state in the railway axle critical cross-sections.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Investigation into the causes of fracture in railway freight car axle",
pages = "181-169",
volume = "55",
doi = "10.1016/j.engfailanal.2015.05.011"
}

Odanović, Z., Ristivojević, M.,& Milošević-Mitić, V.. (2015). Investigation into the causes of fracture in railway freight car axle. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 55, 169-181.
https://doi.org/10.1016/j.engfailanal.2015.05.011

Odanović Z, Ristivojević M, Milošević-Mitić V. Investigation into the causes of fracture in railway freight car axle. in Engineering Failure Analysis. 2015;55:169-181.
doi:10.1016/j.engfailanal.2015.05.011 .

Odanović, Zoran, Ristivojević, Mileta, Milošević-Mitić, Vesna, "Investigation into the causes of fracture in railway freight car axle" in Engineering Failure Analysis, 55 (2015):169-181,
https://doi.org/10.1016/j.engfailanal.2015.05.011 . .

TY  - CONF
AU  - Ristivojević, Mileta
AU  - Lazović, Tatjana
AU  - Vencl, Aleksandar
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1761
PB  - Politecnico di Torino (DIMEAS)
C3  - 5th World Tribology Congress, WTC 2013
T1  - Influence of the pitch point position on tooth flanks wear
EP  - 590
SP  - 587
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1761
ER  - 

@conference{
author = "Ristivojević, Mileta and Lazović, Tatjana and Vencl, Aleksandar",
year = "2013",
publisher = "Politecnico di Torino (DIMEAS)",
journal = "5th World Tribology Congress, WTC 2013",
title = "Influence of the pitch point position on tooth flanks wear",
pages = "590-587",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1761"
}

Ristivojević, M., Lazović, T.,& Vencl, A.. (2013). Influence of the pitch point position on tooth flanks wear. in 5th World Tribology Congress, WTC 2013
Politecnico di Torino (DIMEAS)., 1, 587-590.
https://hdl.handle.net/21.15107/rcub_machinery_1761

Ristivojević M, Lazović T, Vencl A. Influence of the pitch point position on tooth flanks wear. in 5th World Tribology Congress, WTC 2013. 2013;1:587-590.
https://hdl.handle.net/21.15107/rcub_machinery_1761 .

Ristivojević, Mileta, Lazović, Tatjana, Vencl, Aleksandar, "Influence of the pitch point position on tooth flanks wear" in 5th World Tribology Congress, WTC 2013, 1 (2013):587-590,
https://hdl.handle.net/21.15107/rcub_machinery_1761 .

TY  - JOUR
AU  - Ristivojević, Mileta
AU  - Lazović, Tatjana
AU  - Vencl, Aleksandar
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1675
AB  - The impact of load distribution in meshed teeth, teeth geometry and manufacturing accuracy on wear of the spur gear tooth flanks is studied in this paper. The original geometry of teeth is impaired wearing. Due to that, the load distribution is uneven, dynamic forces are increased, and energy efficiency is decreased. The aim of the theoretical and experimental studies, carried out in this paper, is to reach more accurate model for the analysis of tooth flanks load carrying capacity, taking into account a larger number of impacts on the tooth flanks stress state. A mathematical model for the contact stress during contact period is developed, depending on the value and sign of base pitch difference of meshed teeth. The impact of pitch point's position during the meshed teeth contact period was observed. In order to establish a correlation between the tooth flank failures and developed mathematical model, the appropriate experimental studies were carried out. The cemented spur gear pairs were examined on back-to-back gear test rig under conditions of maximum operational load. The results are presented in this paper.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Mechanism and Machine Theory
T1  - Studying the load carrying capacity of spur gear tooth flanks
EP  - 137
SP  - 125
VL  - 59
DO  - 10.1016/j.mechmachtheory.2012.09.006
ER  - 

@article{
author = "Ristivojević, Mileta and Lazović, Tatjana and Vencl, Aleksandar",
year = "2013",
abstract = "The impact of load distribution in meshed teeth, teeth geometry and manufacturing accuracy on wear of the spur gear tooth flanks is studied in this paper. The original geometry of teeth is impaired wearing. Due to that, the load distribution is uneven, dynamic forces are increased, and energy efficiency is decreased. The aim of the theoretical and experimental studies, carried out in this paper, is to reach more accurate model for the analysis of tooth flanks load carrying capacity, taking into account a larger number of impacts on the tooth flanks stress state. A mathematical model for the contact stress during contact period is developed, depending on the value and sign of base pitch difference of meshed teeth. The impact of pitch point's position during the meshed teeth contact period was observed. In order to establish a correlation between the tooth flank failures and developed mathematical model, the appropriate experimental studies were carried out. The cemented spur gear pairs were examined on back-to-back gear test rig under conditions of maximum operational load. The results are presented in this paper.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Mechanism and Machine Theory",
title = "Studying the load carrying capacity of spur gear tooth flanks",
pages = "137-125",
volume = "59",
doi = "10.1016/j.mechmachtheory.2012.09.006"
}

Ristivojević, M., Lazović, T.,& Vencl, A.. (2013). Studying the load carrying capacity of spur gear tooth flanks. in Mechanism and Machine Theory
Pergamon-Elsevier Science Ltd, Oxford., 59, 125-137.
https://doi.org/10.1016/j.mechmachtheory.2012.09.006

Ristivojević M, Lazović T, Vencl A. Studying the load carrying capacity of spur gear tooth flanks. in Mechanism and Machine Theory. 2013;59:125-137.
doi:10.1016/j.mechmachtheory.2012.09.006 .

Ristivojević, Mileta, Lazović, Tatjana, Vencl, Aleksandar, "Studying the load carrying capacity of spur gear tooth flanks" in Mechanism and Machine Theory, 59 (2013):125-137,
https://doi.org/10.1016/j.mechmachtheory.2012.09.006 . .

TY  - JOUR
AU  - Stamenić, Zoran
AU  - Ristivojević, Mileta
AU  - Tasić, Milan
AU  - Mitrović, Radivoje
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6822
AB  - Cardan joints have a wide range of applications in mechanical 
engineering because of the capability of transferring the load and motion 
from one shaft to another with different joint angle. The vital parts of these 
joints have a limited life due to insufficient surface strength in the area of 
rolling parts contact. Load distribution of Cardan joints composite parts 
have a major impact on their capacity and service life. Therefore, a 
detailed analysis of load distribution along the line of contact between 
Cardan Cross pins and rolling parts – needles, was carried out in this 
paper. Appropriate analytical and numerical models are developed. Based 
on the developed models, it is possible to optimize the geometrical 
parameters in terms of uniformity of load distribution of Cardan joints 
component in contact
PB  - Beograd : Mašinski fakultet
T2  - FME Transactions
T1  - Influence of the Geometry Parameters of Cardan Joint Rolling Parts on the Load Distribution
EP  - 143
SP  - 135
VL  - 40
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6822
ER  - 

@article{
author = "Stamenić, Zoran and Ristivojević, Mileta and Tasić, Milan and Mitrović, Radivoje",
year = "2012",
abstract = "Cardan joints have a wide range of applications in mechanical 
engineering because of the capability of transferring the load and motion 
from one shaft to another with different joint angle. The vital parts of these 
joints have a limited life due to insufficient surface strength in the area of 
rolling parts contact. Load distribution of Cardan joints composite parts 
have a major impact on their capacity and service life. Therefore, a 
detailed analysis of load distribution along the line of contact between 
Cardan Cross pins and rolling parts – needles, was carried out in this 
paper. Appropriate analytical and numerical models are developed. Based 
on the developed models, it is possible to optimize the geometrical 
parameters in terms of uniformity of load distribution of Cardan joints 
component in contact",
publisher = "Beograd : Mašinski fakultet",
journal = "FME Transactions",
title = "Influence of the Geometry Parameters of Cardan Joint Rolling Parts on the Load Distribution",
pages = "143-135",
volume = "40",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6822"
}

Stamenić, Z., Ristivojević, M., Tasić, M.,& Mitrović, R.. (2012). Influence of the Geometry Parameters of Cardan Joint Rolling Parts on the Load Distribution. in FME Transactions
Beograd : Mašinski fakultet., 40, 135-143.
https://hdl.handle.net/21.15107/rcub_machinery_6822

Stamenić Z, Ristivojević M, Tasić M, Mitrović R. Influence of the Geometry Parameters of Cardan Joint Rolling Parts on the Load Distribution. in FME Transactions. 2012;40:135-143.
https://hdl.handle.net/21.15107/rcub_machinery_6822 .

Stamenić, Zoran, Ristivojević, Mileta, Tasić, Milan, Mitrović, Radivoje, "Influence of the Geometry Parameters of Cardan Joint Rolling Parts on the Load Distribution" in FME Transactions, 40 (2012):135-143,
https://hdl.handle.net/21.15107/rcub_machinery_6822 .

TY  - CONF
AU  - Lazović, Tatjana
AU  - Milović, Ljubica
AU  - Marković, Svetislav
AU  - Ristivojević, Mileta
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1377
AB  - This paper is a part of the case study of a power plant fan failure. The roller bearing of the fixed fan shaft support was completely damaged. As this bearing arrangement is realized by double-pressed joint (inner ring-bush and bush-shaft), influence of inadequate joints fits on the bearing failure under the real temperature conditions is analyzed in this paper.
PB  - Inegi-Inst Engenharia Mecanica E Gestao Industrial, Porto
C3  - Icem15: 15th International Conference on Experimental Mechanics
T1  - An analysis of fan roller bearing failure
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1377
ER  - 

@conference{
author = "Lazović, Tatjana and Milović, Ljubica and Marković, Svetislav and Ristivojević, Mileta",
year = "2012",
abstract = "This paper is a part of the case study of a power plant fan failure. The roller bearing of the fixed fan shaft support was completely damaged. As this bearing arrangement is realized by double-pressed joint (inner ring-bush and bush-shaft), influence of inadequate joints fits on the bearing failure under the real temperature conditions is analyzed in this paper.",
publisher = "Inegi-Inst Engenharia Mecanica E Gestao Industrial, Porto",
journal = "Icem15: 15th International Conference on Experimental Mechanics",
title = "An analysis of fan roller bearing failure",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1377"
}

Lazović, T., Milović, L., Marković, S.,& Ristivojević, M.. (2012). An analysis of fan roller bearing failure. in Icem15: 15th International Conference on Experimental Mechanics
Inegi-Inst Engenharia Mecanica E Gestao Industrial, Porto..
https://hdl.handle.net/21.15107/rcub_machinery_1377

Lazović T, Milović L, Marković S, Ristivojević M. An analysis of fan roller bearing failure. in Icem15: 15th International Conference on Experimental Mechanics. 2012;.
https://hdl.handle.net/21.15107/rcub_machinery_1377 .

Lazović, Tatjana, Milović, Ljubica, Marković, Svetislav, Ristivojević, Mileta, "An analysis of fan roller bearing failure" in Icem15: 15th International Conference on Experimental Mechanics (2012),
https://hdl.handle.net/21.15107/rcub_machinery_1377 .

TY  - JOUR
AU  - Stamenić, Zoran
AU  - Ristivojević, Mileta
AU  - Tasić, Milan
AU  - Mitrović, Radivoje
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1521
AB  - Kardanove spojnice se široko primenjuju u mašinstvu zbog mogućnosti prenošenja opterećenja i obrtnog kretanja sa jednog vratila na drugo, čije se ose međusobno seku pod promenljivim uglom. Vitalni delovi ovih spojnica imaju ograničeni radni vek zbog nedovoljne površinske čvrstoće kontaktnih površina spregnutih delova. Raspodela opterećenja spregnutih delova Kardanove spojnice ima veliki uticaj na nosivost i njihov radni vek. U tom cilju, u ovom radu, detaljno je analizirana raspodela opterećenja duž linije dodira rukavca Kardanovog krsta i kotrljajnih tela - iglica. Razvijeni su odgovarajući analitički i numerički modeli. Na osnovu razvijenih modela, moguće je izvršiti optimizaciju geometrijskih veličina sa aspekta ravnomernosti raspodele opterećenja spregnutih delova Kardanove spojnice.
AB  - Cardan joints have a wide range of applications in mechanical engineering because of the capability of transferring the load and motion from one shaft to another with different joint angle. The vital parts of these joints have a limited life due to insufficient surface strength in the area of rolling parts contact. Load distribution of Cardan joints composite parts have a major impact on their capacity and service life. Therefore, a detailed analysis of load distribution along the line of contact between Cardan Cross pins and rolling parts - needles, was carried out in this paper. Appropriate analytical and numerical models are developed. Based on the developed models, it is possible to optimize the geometrical parameters in terms of uniformity of load distribution of Cardan joints component in contact.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Istraživanje uticaja geometrijskih veličina spregnutih delova kardanove spojnice na raspodelu opterećenja
T1  - Influence of the geometry parameters of cardan joint rolling parts on the load distribution
EP  - 143
IS  - 3
SP  - 135
VL  - 40
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1521
ER  - 

@article{
author = "Stamenić, Zoran and Ristivojević, Mileta and Tasić, Milan and Mitrović, Radivoje",
year = "2012",
abstract = "Kardanove spojnice se široko primenjuju u mašinstvu zbog mogućnosti prenošenja opterećenja i obrtnog kretanja sa jednog vratila na drugo, čije se ose međusobno seku pod promenljivim uglom. Vitalni delovi ovih spojnica imaju ograničeni radni vek zbog nedovoljne površinske čvrstoće kontaktnih površina spregnutih delova. Raspodela opterećenja spregnutih delova Kardanove spojnice ima veliki uticaj na nosivost i njihov radni vek. U tom cilju, u ovom radu, detaljno je analizirana raspodela opterećenja duž linije dodira rukavca Kardanovog krsta i kotrljajnih tela - iglica. Razvijeni su odgovarajući analitički i numerički modeli. Na osnovu razvijenih modela, moguće je izvršiti optimizaciju geometrijskih veličina sa aspekta ravnomernosti raspodele opterećenja spregnutih delova Kardanove spojnice., Cardan joints have a wide range of applications in mechanical engineering because of the capability of transferring the load and motion from one shaft to another with different joint angle. The vital parts of these joints have a limited life due to insufficient surface strength in the area of rolling parts contact. Load distribution of Cardan joints composite parts have a major impact on their capacity and service life. Therefore, a detailed analysis of load distribution along the line of contact between Cardan Cross pins and rolling parts - needles, was carried out in this paper. Appropriate analytical and numerical models are developed. Based on the developed models, it is possible to optimize the geometrical parameters in terms of uniformity of load distribution of Cardan joints component in contact.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Istraživanje uticaja geometrijskih veličina spregnutih delova kardanove spojnice na raspodelu opterećenja, Influence of the geometry parameters of cardan joint rolling parts on the load distribution",
pages = "143-135",
number = "3",
volume = "40",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1521"
}

Stamenić, Z., Ristivojević, M., Tasić, M.,& Mitrović, R.. (2012). Istraživanje uticaja geometrijskih veličina spregnutih delova kardanove spojnice na raspodelu opterećenja. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 40(3), 135-143.
https://hdl.handle.net/21.15107/rcub_machinery_1521

Stamenić Z, Ristivojević M, Tasić M, Mitrović R. Istraživanje uticaja geometrijskih veličina spregnutih delova kardanove spojnice na raspodelu opterećenja. in FME Transactions. 2012;40(3):135-143.
https://hdl.handle.net/21.15107/rcub_machinery_1521 .

Stamenić, Zoran, Ristivojević, Mileta, Tasić, Milan, Mitrović, Radivoje, "Istraživanje uticaja geometrijskih veličina spregnutih delova kardanove spojnice na raspodelu opterećenja" in FME Transactions, 40, no. 3 (2012):135-143,
https://hdl.handle.net/21.15107/rcub_machinery_1521 .

TY  - JOUR
AU  - Rosić, Božidar
AU  - Ristivojević, Mileta
AU  - Radović, Dobrinko
AU  - Marković, Dragan
AU  - Vasić, Z.
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1479
AB  - The purpose of this paper is to present the method for solving multiobjective nonlinear optimization of planetary gear trains. Optimization of gear train was successfully accomplished using the genetic algorithm (GA). The weighting method is used to approximate the Pareto set. This method transforms the multiobjective optimization problem into single-objective optimization problem by associating each objective function a weighting coefficient and then minimizing the weighted sum of the objectives. The GA based approach produced quite satisfactory results promptly supplying the designer with the preliminary design parameters of planetary gear train for different gear ratios. The results showed that the genetic algorithm is useful and applicable for optimization of planetary gears desgin.
T2  - Technics Technologies Education Management
T1  - Analysis and multiobjective design optimization of planetary gear train
EP  - 984
IS  - 3
SP  - 975
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1479
ER  - 

@article{
author = "Rosić, Božidar and Ristivojević, Mileta and Radović, Dobrinko and Marković, Dragan and Vasić, Z.",
year = "2012",
abstract = "The purpose of this paper is to present the method for solving multiobjective nonlinear optimization of planetary gear trains. Optimization of gear train was successfully accomplished using the genetic algorithm (GA). The weighting method is used to approximate the Pareto set. This method transforms the multiobjective optimization problem into single-objective optimization problem by associating each objective function a weighting coefficient and then minimizing the weighted sum of the objectives. The GA based approach produced quite satisfactory results promptly supplying the designer with the preliminary design parameters of planetary gear train for different gear ratios. The results showed that the genetic algorithm is useful and applicable for optimization of planetary gears desgin.",
journal = "Technics Technologies Education Management",
title = "Analysis and multiobjective design optimization of planetary gear train",
pages = "984-975",
number = "3",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1479"
}

Rosić, B., Ristivojević, M., Radović, D., Marković, D.,& Vasić, Z.. (2012). Analysis and multiobjective design optimization of planetary gear train. in Technics Technologies Education Management, 7(3), 975-984.
https://hdl.handle.net/21.15107/rcub_machinery_1479

Rosić B, Ristivojević M, Radović D, Marković D, Vasić Z. Analysis and multiobjective design optimization of planetary gear train. in Technics Technologies Education Management. 2012;7(3):975-984.
https://hdl.handle.net/21.15107/rcub_machinery_1479 .

Rosić, Božidar, Ristivojević, Mileta, Radović, Dobrinko, Marković, Dragan, Vasić, Z., "Analysis and multiobjective design optimization of planetary gear train" in Technics Technologies Education Management, 7, no. 3 (2012):975-984,
https://hdl.handle.net/21.15107/rcub_machinery_1479 .

TY  - JOUR
AU  - Ristivojević, Mileta
AU  - Milošević-Mitić, Vesna
AU  - Burzić, Zijah
AU  - Sojić-Radić, Mirjana
PY  - 2011
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1243
AB  - This paper presents the results of analytical, numerical and experimental research of the stress-strain states of multilayer pressed joints in the field of elastic deformations. Suitable numerical (FEM) and analytical models were developed, in accordance with the small elastic deformations hypothesis, for analysis of the stress-strain state of multilayer pressed joints. Numerical and analytical research results were verified experimentally, using tensiometric measurements (strain gages) in laboratory conditions on real models. The purpose of such investigations was to clarify the cause of a fan shaft failure in the fossil fuel power plant.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Analysis of the stress state of multilayer pressed joints
EP  - 1486
IS  - 6
SP  - 1477
VL  - 18
DO  - 10.1016/j.engfailanal.2011.05.002
ER  - 

@article{
author = "Ristivojević, Mileta and Milošević-Mitić, Vesna and Burzić, Zijah and Sojić-Radić, Mirjana",
year = "2011",
abstract = "This paper presents the results of analytical, numerical and experimental research of the stress-strain states of multilayer pressed joints in the field of elastic deformations. Suitable numerical (FEM) and analytical models were developed, in accordance with the small elastic deformations hypothesis, for analysis of the stress-strain state of multilayer pressed joints. Numerical and analytical research results were verified experimentally, using tensiometric measurements (strain gages) in laboratory conditions on real models. The purpose of such investigations was to clarify the cause of a fan shaft failure in the fossil fuel power plant.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Analysis of the stress state of multilayer pressed joints",
pages = "1486-1477",
number = "6",
volume = "18",
doi = "10.1016/j.engfailanal.2011.05.002"
}

Ristivojević, M., Milošević-Mitić, V., Burzić, Z.,& Sojić-Radić, M.. (2011). Analysis of the stress state of multilayer pressed joints. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 18(6), 1477-1486.
https://doi.org/10.1016/j.engfailanal.2011.05.002

Ristivojević M, Milošević-Mitić V, Burzić Z, Sojić-Radić M. Analysis of the stress state of multilayer pressed joints. in Engineering Failure Analysis. 2011;18(6):1477-1486.
doi:10.1016/j.engfailanal.2011.05.002 .

Ristivojević, Mileta, Milošević-Mitić, Vesna, Burzić, Zijah, Sojić-Radić, Mirjana, "Analysis of the stress state of multilayer pressed joints" in Engineering Failure Analysis, 18, no. 6 (2011):1477-1486,
https://doi.org/10.1016/j.engfailanal.2011.05.002 . .

TY  - JOUR
AU  - Lazović, Tatjana
AU  - Mitrović, Radivoje
AU  - Ristivojević, Mileta
PY  - 2010
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/997
AB  - External load of ball bearing is transferred from one ring to other one through balls. In the radially loaded bearing all balls are not simultaneously active. Simultaneously active balls participating in load transfer are in loaded zone. Load distribution between balls in loaded zone is unequal. Width of loaded zone depends on bearing internal radial clearance. The loaded zone decreases with increasing clearance. Consequently, the load distribution between balls becomes more unequal. It leads to decreasing of ball bearing service life. The analysis of influence of internal radial clearance on the radially loaded deep groove ball bearing service life is carried out in this paper. For this purpose a new mathematical model is derived respecting classic ball bearing life theory and by introduction of a new parameter reduced load distribution factor.
T2  - Journal of the Balkan Tribological Association
T1  - Influence of internal radial clearance on the ball bearing service life
EP  - 8
IS  - 1
SP  - 1
VL  - 16
UR  - https://hdl.handle.net/21.15107/rcub_machinery_997
ER  - 

@article{
author = "Lazović, Tatjana and Mitrović, Radivoje and Ristivojević, Mileta",
year = "2010",
abstract = "External load of ball bearing is transferred from one ring to other one through balls. In the radially loaded bearing all balls are not simultaneously active. Simultaneously active balls participating in load transfer are in loaded zone. Load distribution between balls in loaded zone is unequal. Width of loaded zone depends on bearing internal radial clearance. The loaded zone decreases with increasing clearance. Consequently, the load distribution between balls becomes more unequal. It leads to decreasing of ball bearing service life. The analysis of influence of internal radial clearance on the radially loaded deep groove ball bearing service life is carried out in this paper. For this purpose a new mathematical model is derived respecting classic ball bearing life theory and by introduction of a new parameter reduced load distribution factor.",
journal = "Journal of the Balkan Tribological Association",
title = "Influence of internal radial clearance on the ball bearing service life",
pages = "8-1",
number = "1",
volume = "16",
url = "https://hdl.handle.net/21.15107/rcub_machinery_997"
}

Lazović, T., Mitrović, R.,& Ristivojević, M.. (2010). Influence of internal radial clearance on the ball bearing service life. in Journal of the Balkan Tribological Association, 16(1), 1-8.
https://hdl.handle.net/21.15107/rcub_machinery_997

Lazović T, Mitrović R, Ristivojević M. Influence of internal radial clearance on the ball bearing service life. in Journal of the Balkan Tribological Association. 2010;16(1):1-8.
https://hdl.handle.net/21.15107/rcub_machinery_997 .

Lazović, Tatjana, Mitrović, Radivoje, Ristivojević, Mileta, "Influence of internal radial clearance on the ball bearing service life" in Journal of the Balkan Tribological Association, 16, no. 1 (2010):1-8,
https://hdl.handle.net/21.15107/rcub_machinery_997 .