The effect of track irregularity and wheel load on the dynamic response of a high-speed rail system

Authors

  • Tran Minh Thi
    Department of Civil Engineering, National University of Singapore
  • Kok K Ang
    Department of Civil Engineering, National University of Singapore
  • Luong Van Hai
    Faculty of Civil Engineering, Ho Chi Minh City University of Technology, VNU HCMC

Keywords:

Moving element method; constant and varying velocities; wheel-rail interaction; track irregularity.

Abstract

In this paper, a computational study using the moving element method (MEM) was carried out to investigate the dynamic response of a high-speed rail (HSR). A new formulation for calculating the structural matrices of the moving element is proposed. Two wheel-rail contact problems will be examined. One is linear and the other nonlinear. A parametric study is carried out to understand the effects of various factors on the response of the train-track system such as the severity of railhead roughness and the wheel load. In particular, the effect of above factors on the occurrence of the jumping wheel phenomenon, which occurs when there is a momentary loss of contact between the wheel and track, is considered.

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References

S. Timoshenko, D. H. Young, W. Jr. Weaver, Vibration Problems in Engineering, 4th ed., John Wiley, New York, 1974.

P. M. Mathews, Vibrations of a beam on elastic foundation, Journal of Applied Mathematics and Mechanics, 38 (1958) 105-115.

L. Jezequel, Response of Periodic Systems to a Moving Load, Journal of Applied Mechanics 48 (1981) 613-618.

F. V. Filho, Finite element analysis of structures under moving loads, Shock and Vibration Digest 10 (1978) 27-35.

J. Hino, T. Yoshimura, N. Ananthanarayana, Vibration analysis of non-linear beams subjected to a moving load using the finite element method, Journal of Sound and Vibration 100 (4) (1985) 477-491.

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Received: 04-06-2020
Accepted: 04-06-2020
Published: 31-08-2013

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Abstract: 202
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How to Cite

Thi, T. M., Ang, K. K., & Hai, L. V. (2013). The effect of track irregularity and wheel load on the dynamic response of a high-speed rail system. HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ENGINEERING AND TECHNOLOGY, 3(1), 80–93. Retrieved from https://journalofscience.ou.edu.vn/index.php/tech-en/article/view/406

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