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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 104
Edited by: J. Pombo
Paper 3

Effect of Corrugation of High-Speed Railways on the Dynamic Response of Vehicle and Track

L. Wu1, Y.L. Gu2, H.Y. Wang3, Z.F. Wen3 and X.S. Jin3

1Department of Mechanical Engineering, Southwest Jiaotong University, Emei Campus, China
2School of Mechanical Engineering, Beijing Jiaotong University, China
3State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China

Full Bibliographic Reference for this paper
L. Wu, Y.L. Gu, H.Y. Wang, Z.F. Wen, X.S. Jin, "Effect of Corrugation of High-Speed Railways on the Dynamic Response of Vehicle and Track", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 3, 2014. doi:10.4203/ccp.104.3
Keywords: rail corrugation, high-speed railways, dynamic response, rail/wheel interaction.

This paper investigates the dynamic response of the key components on vehicle and track of ballastless high-speed railways under the excitation of short wavelength rail corrugation. A high-speed vehicle-track coupled dynamic model is established with vertical and lateral motion considered. The vehicle model is built with the parameters of a high-speed vehicle. The track model is a ballastless track, in which the vibration of slab is determined by modal superposition. Field measured rail irregularity on corrugated rail is used in the simulation to introduce the high frequency rail excitation. The model is used to simulate effects of the severity of corrugation on the dynamic response of the vehicle-track system. The effect of corrugation growth on rail/wheel contact force, wheelset acceleration, and dynamic load on fastener are investigated to evaluate the effect of corrugation on vehicle and track. Simulation results show that corrugation has a significant effect on the dynamic response of the wheel and rail, bogie frame, and the fasteners.

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