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Stochastic Technical Stability Test of a Passenger Railroad Car Crossing a Turnout

Author

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  • Jerzy Kisilowski

    (Faculty of Transport, Electrical Engineering and Computer Science, University of Technology and Humanities, 26-600 Radom, Poland)

  • Elżbieta Kowalik-Adamczyk

    (Faculty of Transport, Electrical Engineering and Computer Science, University of Technology and Humanities, 26-600 Radom, Poland)

Abstract

This article presents a definition of stochastic technical stability that was applied to test a mathematical model of a passenger railroad car crossing a turnout with the speed exceeding 160 km/h. Stability defined in this way allows testing of Lyapunov’s stability with disturbances from the track and for a nonlinear system. The STS test of a nonlinear mathematical model of a passenger car was carried out by perturbing the motion of the mathematical model with irregularities originating from the track gauge change and wheelset motion in the direction transverse to the track axis. The main aim of this paper was to determine the influence of various factors and technical conditions on the assessment of the stability of various means of transport. The analysis presented can be used to assess the dynamics of electric vehicles, whose mechanical parameters differ from those of combustion vehicles at present. The area of stable motion in the Lyapunov sense was defined using the STS method. Simulations were performed to determine the trajectory of the wheelset transverse motion. The probability of finding the wheelset in the stable motion area in relation to the rail for a single-point contact was determined. In practice, this is a one-point contact of the wheel with the rail. Conclusions from the conducted research are presented.

Suggested Citation

  • Jerzy Kisilowski & Elżbieta Kowalik-Adamczyk, 2021. "Stochastic Technical Stability Test of a Passenger Railroad Car Crossing a Turnout," Energies, MDPI, vol. 14(15), pages 1-17, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:15:p:4569-:d:603349
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    References listed on IDEAS

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    1. Xinyu Zhang & Lei Wang & William Dunford & Jie Chen & Zhigang Liu, 2018. "Integrated Full-Frequency Impedance Modeling and Stability Analysis of the Train-Network Power Supply System for High-Speed Railways," Energies, MDPI, vol. 11(7), pages 1-19, July.
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