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EQUIPMENT AND MATERIALS
Название Determination procedure of actual drive wheel–rail contact area for railway vehicles
DOI 10.17580/gzh.2021.09.11
Автор Keropyan A. M.
Информация об авторе

MNIPIITI, Moscow, Russia:

A. M. Keropyan, Chief Researcher, Doctor of Engineering Sciences, am_kerop@mail.ru

Реферат

The main function of the wheel–rail system is to ensure the transmission of torque from the wheel to the rail, and to ensure the appropriate traction of the locomotive. Numerous studies have shown that the contact of real rough surfaces is discrete, i.e. random, due to the interaction of individual protrusions of micro-surfaces. Modern science of friction states that when roughness is randomly located on the surfaces of contacting bodies, the contact convergence of these bodies under load determines the actual contact area dependent on the geometry of the contacting surfaces. The friction force in the contact zone is governed by the sum of the friction forces at individual points of interaction. Therefore, the total friction force depends on the actual contact area of the contact surfaces. Therefore, determining its actual value, which is a parameter that ensures the performance of railway transport, is a priority and urgent task. This paper presents a method for calculating the actual contact area, which allows determining the expected value of the traction force in the contact zone of the locomotive wheel with the rail. The application of the results of these studies in maintenance of rail tracks during operation makes it possible to conclude that an accurate determination of the actual contact area can reduce the contact stresses when the wheel and rail surfaces interact by almost 1.9 times.

Ключевые слова Wheel–rail system, tractive effort, actual contact area, friction force, contour contact area, rough surface, reference curve parameter
Библиографический список

1. Butenin N. V., Lunts Ya. L., Merkin D. R. Course on theoretical mechanics : tutorial. 12th. Saint-Petersburg : Lan, 2020. 732 p.
2. Bukhgolts N. N. Basic course on theoretical mechanics : tutorial. 11th. Saint-Petersburg : Lan, 2021. Part I. Kinematics, statics and dynamics of a point mass. 468 p.
3. Demkin N. B. Interengagement of rough surfaces. Moscow : Nauka, 1970. 227 p.
4. Kragelskiy I. V. Friction and wear. 2nd revised and enlarged edition. Moscow : Mashinostroenie, 1968. 480 p.
5. Kragelskiy I. V., Mikhin N. M. Friction knots of machines : reference book. Moscow : Mashinostroenie, 1984. 280 p.
6. Luzhnov Yu. M. Nanotribology of the wheel and rail adhesion: Reality and opportunities. Ser. Transactions of the Research Institute for Railway Transport. Moscow : Intekst, 2009. 176 p.
7. Mikhin N. M., Lyapin K. S., Dobychin M. N. Tangential strength in adhesive bond. Contact interaction of solids and calculation of friction forces and wear : Collected works. Moscow : Nauka, 1971. pp. 53–60.
8. Keropyan A. M. Features of Interaction of Traction Wheels of an Electric Locomotive and a Diesel Locomotive with Rails in the Conditions of Open Mountain Works. Journal of Friction and Wear. 2016. Vol. 37, No. 1. pp. 78–82.
9. Gerasimova A. A., Keropyan A. M., Girya A. M. Study of the Wheel–Rail System of Open-Pit Locomotives in Traction Mode. Journal of Machinery Manufacture and Reliability. 2018. Vol. 47, No. 1. pp. 35–38.
10. Keropyan А., Gorbatyuk S., Gerasimova A. Tribotechnical Aspects of Wheel-Rail System Interaction. Procedia Engineering. 2017. Vol. 206. pp. 564–569.
11. Lagunova Yu., Ivanov I., Khoroshavin S. Perfection of constru ctive schemes of drive of running equipment of a career motor transport. International Conference on Modern Trends in Manufacturing Technologies and Equipment. 2018. MATEC Web of Conferences. 2018. Vol. 224. 02031. DOI: 10.1051/matecconf/201822402031
12. Surina N. V., Mnatsakanyan V. U. Automated process design system for mining equipment repair. Gornyi Zhurnal. 2019. No. 7. pp. 89–94. DOI: 10.17580/gzh.2019.07.08
13. Albagachiev A. Yu., Mikheev A. V., Khasyanova D. Yu., Tananov M. A. Tribological Studies of Lubricants. Journal of Machinery Manufacture and Reliability. 2018. Vol. 47, No. 5. pp. 464–468.
14. Popov V. L., Неβ M. Method of Dimensionality Reduction in Contact Mechanics and Friction. Berlin : Springer, 2015. 265 p.
15. Argatov I., Heβ M., Pohrt R., Popov V. L. The extension of the method of dimensionality reduction to non-compact and non-axisymmetric contacts. Zeitschr ift für Angewandte Mathematik und Mechanik. 2016. Vol. 96, No. 10. pp. 1144–1155.
16. Frérot L., Aghababaei R., Molinari J.-F. A mechanistic understanding of the wear coefficient: From single to multiple asperities contact. Journal of the Mechanics and Physics of Solids. 2018. Vol. 114. pp. 172–184.
17. Popov V. L., Pohrt R., Heβ M. General procedure for solution of contact problems under dynamic normal and tangential loading based on the known solution of normal contact problem. The Journal of Strain Analysis for Engineering Design. 2016. Vol. 51, Iss. 4. pp. 247–255.
18. Fridman Ya. B. Mechanical properties of metals : In two volumes. 3rd revised and enlarged edition. Moscow : Mashinostroenie, 1974. 841 p.
19. GOST 9036–88. Solid-rolled wheels. Design and dimensions. Moscow : Izdatelstvo standartov, 1989. 16 p.
20. GOST R 51685–2013. Railway rails. General specifications. Moscow : Standartinform, 2014. 120 p.
21. Flyachinskiy K. P. Influence of rail and wheel interaction condition on friction processes in contact zone : Dissertation … of Candidate of Engineering Sciences. Kolomna, 1993. 179 p.
22. Demkin N. B. Effect of seating-in on deformation properties of contact. Mechanics and Physics of Friction Contact : Inter-University Collection of Scientific Papers. Tver : Tverskoy gosudarstvennyi tekhnicheskiy universitet, 2002. Iss. 9. pp. 4–7.
23. Kragelskiy I. V., Dobychin M. N., Kombalov V. S. Bases of calculations on friction and ware. Moscow : Mashinostroenie, 1977. 526 p.
24. Mikhin N. M. External friction of solids. Moscow : Nauka, 1977. 221 p.
25. Khusu A. P., Vittenberg Yu. R., Palmov V. A. Surface roughness. Theoretical and probabilistic approach. Moscow : Nauka, 1975. 343 p.
26. Chichinadze A. V., Braun E. D., Bushe N. A. et al. Tribology basis (friction, wear, lubrication) : Textbook. 2nd revised and enlarged edition. Moscow : Mashinostroenie, 2001. 664 p.
27. Kombalov V. S. Impact of roughness on friction and wear of solids. Moscow : Nauka, 1974. 112 p.
28. Ivanov I. A. (Ed.). Life time and maintainability of wheel pairs of stock. Moscow : Infra-M, 2017. 264 p.

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