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Название Continuous control of rail profile in open pit mines
DOI 10.17580/gzh.2022.08.06
Автор Keropyan A. M., Kantovich L. I., Kalakutsky A. V.
Информация об авторе

MNIPIITI, Moscow, Russia:

A. M. Keropyan, Chief Researcher, Associate Professor, Doctor of Engineering Sciences, am_kerop@mail.ru
A. V. Kalakutsky, CEO, Associate Professor, Candidate of Engineering Sciences

NUST MISIS, Moscow, Russia:

L. I. Kantovich, Professor, Doctor of Engineering Sciences


Physically, railroad movement involves interaction between rails and wheels. Parameters of this interaction govern the locomotive power, the movement safety and the main engineering-andeconomic performance of trains and rails. The theoretical and experimental research proved the need of the continuous control over geometry of the cross profile of two interacting cylindrical bodies having mutually perpendicular axes, which is a wheel-and-rail system of locomotives in open pit mines. It is found that the rail profile geometry in open pits has a direct influence on the true value of the wheeland-rail contact area which, at the strength of the friction factor, ensures the required pulling force of rail transport. The rail transport in open pit mining differs from the general use rail transport by using electric locomotives and multi-purpose traction assemblies which have static axial load up to 300 kN. Moreover, subject to production necessity, open pit mines use motor dumpcars having axial loading up to 350 kN. Continuous control of the rail profile geometry in operating open pit mines is of the high concern currently. The increase in the true value of the wheel-and-rail contact areas reduces the contact stresses, extends the service life of the railway profile and adds up to the pulling force of a locomotive. Being selected from the proposed formulas, the combinations of the curve radii of the wheel-and-rail faces, given the running clearance in a range from 0.2 to 0.8 mm, ensure the friction factor increased by 9 % owing to the conformal contact at the increased true area of interaction between two cylindrical bodies having mutually perpendicular axes.

Ключевые слова Rail profile, cylindrical bodies having mutually perpendicular axes, wheel-and-rail system, contact stress, friction factor, pulling force
Библиографический список

1. Argatov I., Heβ M., Pohrt R., Popov V. L. The extension of the method of dimensionality reduction to non-compact and non-axisymmetric contacts. Zeitschrift für Angewandte Mathematik und Mechanik. 2016. Vol. 96, No. 10. ss. 1144–1155.
2. 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.
3. Polyakova E. Ya., Polyakov V. O., Dubinskiy S. I. On icing of railway rolling stock under operating conditions of northern latitudinal railway. Izvestiya Peterburgskogo universiteta putey soobshcheniya. 2021. Vol. 18, No. 1. pp. 72–79.
4. Albagachiev A. Yu., Lukashev E. A., Sidorov M. I., Stavrovskiy M. E. Tribochemical Kinetics of External Friction. Russian Engineering Research. 2017. Vol. 37, No. 8. pp. 686–693.
5. Yong Sun, Xingsheng Li. Experimental Investigation of Pick Body Bending Failure. International Journal of Mechanical Engineering and Robotics Research. 2018. Vol. 7, No. 2. pp. 184–188.
6. Yong Sun, Xingsheng Li, Hua Guo. Failure Probability Prediction of Thermally Stable Diamond Composite Tipped Picks in the Cutting Cycle of Underground Roadway Development. Applied Sciences. 2019. Vol. 9, Iss. 16. 3294. DOI: 10.3390/app9163294
7. Adigamov A., Zotov V., Kovalev R., Kopylov A. Calculation of transportation of the stowing composite based on the waste of water-soluble ores. Transportation Research Procedia. 2021. Vol. 57. pp. 17–23.

8. Perekutnev V. E., Zotov V. V. Modeling drive wheels of hoisting machines with rubber cables. GIAB. 2020. No. 6. pp. 105–114.
9. Holmberg K., Erdemir A. The impact of tribology on energy use and CO2 emission globally and in combustion engine and electric cars. Tribology International. 2019. Vol. 135. pp. 389–396.
10. Vakis A. I., Yastrebov V. A., Scheibert J., Nicola L., Dini D. et al. Modeling and simulation in tribology across scales: An overview. Tribology International. 2018. Vol. 125. pp. 169–199.
11. Farfan-Cabrera L. I. Tribology of electric vehicles: A review of critical components, current state and future improvement trends. Tribology International. 2019. Vol. 138. pp. 473–486.
12. Opia A. C., Mohd Kameil Abdul Hamid, Syahrullail Samion, Johnson C. A. N., Abu Bakar Rahim et al. Nano-Particles Additives as a Promising Trend in Tribology: A Review on their Fundamentals and Mechanisms on Friction and Wear Reduction. Evergreen. 2021. Vol. 8, Iss. 4. pp. 777–798.
13. Timiryazev V. A., Khostikoev M. Z., Konoplev V. N., Nabatnikov Yu. F., Mnatsakanyan V. U. Improving Precision in Selective Assembly. Russian Engineering Research. 2019. Vol. 39, No. 6. pp. 499–502.
14. Surina N. V., Mnatsakanyan V. U. Automated process design system for mining equipment repair. Gornyi Zhurnal. 2019. No. 7. pp. 90–95. DOI: 10.17580/gzh.2019.07.08
15. Pisarenko G. S., Yakovlev A. P., Matveev V. V. Strength of materials : Handbook. 2nd enlarged and revised edition. Kiev : Naukova dumka, 1988. 736 p.
16. Keropyan A. M., Bibikov P. Ya., Verzhanskiy P. N. et al. Determination of endless cylindrical surface curvature radii. Patent RF, No. 2566598. Applied: 28.08.2014. Published: 27.10.2015. Bulletin No. 30.
17. Keropyan A. M., Kaputkin D. E., Bibikov P. Ya. et al. Measuring tool to control radius of curve of cylindrical surfaces of infinite length. Patent RF, No. 2568332. Applied: 28.08.2014. Published: 20.11.2015. Bulletin No. 32.
18. Keropyan A. M. Interaction theory development and justification of rational parameters for wheeland-rail systems of locomotives in pulling mode in open pit mines : Dissertation … of Doctor of Engineering Sciences. Yekaterinburg, 2015. 233 p.
19. Guidelines to Best Practices for Heavy Haul Railway Operations: Wheel and Rail Interface Issues. Virginia : IHHA, 2001. 485 p.
20. Keropyan A. M., Verzhansky P. M., Basov R. K. Rational geometrical parameters of the working surfaces of the rail and wheel tread career locomotive operating in the mode of traction. Gornoe oborudovanie i elektromekhanika. 2015. No. 1(110). pp. 28–33.
21. Rail grinding. Improvement of procedure and technology. Zheleznye dorogi mira. 2000. No. 9. pp. 1–10.
22. 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.

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