Increasing the Forecasting Fidelity of Current Collection System Operating Capability by Means of Contact Pressure Simulation Modelling

Authors: Anton Golubkov, Gleb Ermachkov, Aleksandr Smerdin, Oleg Sidorov, Victor Philippov

Abstract:

Current collection quality is one of the limiting factors when increasing trains movement speed in the rail sector. With the movement speed growth, the impact forces on the current collector from the rolling stock and the aerodynamic influence increase, which leads to the spread in the contact pressure values, separation of the current collector head from the contact wire, contact arcing and excessive wear of the contact elements. The upcoming trend in resolving this issue is the use of the automatic control systems providing stabilization of the contact pressure value. The present paper considers the features of the contemporary automatic control systems of the current collector’s pressure; their major disadvantages have been stated. A scheme of current collector pressure automatic control has been proposed, distinguished by a proactive influence on undesirable effects. A mathematical model of contact strips wearing has been presented, obtained in accordance with the provisions of the central composition rotatable design program. The analysis of the obtained dependencies has been carried out. The procedures for determining the optimal current collector pressure on the contact wire and the pressure control principle in the pneumatic drive have been described.

Keywords: High-speed running, current collector, contact strip, mathematical model, contact pressure, program control, wear, life cycle.

References:

[1] Updated program of high-speed railway communication on the territory of the Russian Federation. Access mode: http://www.rzd.ru/static/public/ru?STRUCTURE_ID=5098
[2] A. P. Buinosov, K. G. Shumakov, “Method for estimating the technical condition of electric truck receiver (Periodical style)” Scientific and Technical Bulletin of the Volga Region, 2019. V. 9. pp. 15 – 18.
[3] A. N. Smerdin, “Improvement the current collection system of main electric railways under conditions of high-speed and heavy haul movement (Doctor of Technical Science thesis work: 05.22.07)” Omsk, 2019. 600 p.
[4] O. A. Sidorov, V. M. Pavlov, “The study of the current collector current load capacity of the main electric motive power (Periodical style)” Railway research institute bulletin, M., 2015. V. 4. pp. 19 – 24.
[5] O. A. Sidorov, S. A. Stupakov, V. M. Philippov “The simulation of the current collection devices’ contact pairs wear of monorail electric vehicles (Periodical style)” Journal of the Transsib Railway Studies, 2011. V. 3(7). pp. 43 – 52.
[6] R. G. Bayer “Prediction of Wear in a Sliding System (Periodical style)” Wear, Vol. 11, 1968. pp. 319 – 332.
[7] A. Collina, S. Melzi, “Effect of contact strip–contact wire interaction on current transfer at high sliding speed in the mid–high frequency range (Periodical style)”, 5th International Conference on Tribology AITC–AIT 2006, Parma, Italy, September 20–22, 2006.
[8] G. X. Chen, H. J. Yang, W. H. Zhang, X. Wang, S.D. Zhang, and Z.R. Zhou, “Experimental study on arc ablation occurring in a contact strip rubbing against a contact wire electrical current”, Tribology Int., vol. 61, no. 5, pp. 88-94, 2013.
[9] A. A. Spiridonov, “Planning an experiment when studying technological processes”, Mechanical Engineering, 1981, 184 p.
[10] A. N. Smerdin, A. E. Chepurko, “Analysis of the environmental load from the electrified transport current collection system”, Ural Transport. 2018. V. 1 (56). pp. 69 – 74.
[11] G. R. Ermachkov, A. S. Golubkov, et al., “Application of neural networks at simulation of a current collection system on electric railways”, Journal of the Transsib Railway Studies, 2018. V. 1(33). pp. 69 – 79.
[12] S. Bruni, J. Ambrosio, A. Carnicero, Y. H. Cho, L. Finner, M. Ikeda and W. Zhang, 2015, “The Results of the Pantograph–Catenary Interaction Benchmark”, Veh. Syst. Dyn., 53(3), pp. 412–435.
[13] A. V. Paranin, A. V. Efimov, D. V. Efimov, “Modelling of the clean contact between the contact wires and collector strip with static finite element methods”, Journal of the Transsib Railway Studies, 2014. V. 1(17). pp. 57 – 67.
[14] L. Zhigang , Y. Song, Y. Han, H. Wang, J. Zhang, Z. Han, “Advances of research on high-speed railway catenary”, Journal of Modern Transportation, 2018, V. 26(1), pp. 1–23.