Influence of Rail Fastener Failure on Vehicle Dynamic Derailment

XIAO Xin-biao; JIN Xue-song; WEN Ze-feng

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XIAO Xin-biao, JIN Xue-song, WEN Ze-feng. Influence of Rail Fastener Failure on Vehicle Dynamic Derailment[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 10-15.

Citation:

XIAO Xin-biao, JIN Xue-song, WEN Ze-feng. Influence of Rail Fastener Failure on Vehicle Dynamic Derailment[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 10-15.

XIAO Xin-biao, JIN Xue-song, WEN Ze-feng. Influence of Rail Fastener Failure on Vehicle Dynamic Derailment[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 10-15.

Citation:

XIAO Xin-biao, JIN Xue-song, WEN Ze-feng. Influence of Rail Fastener Failure on Vehicle Dynamic Derailment[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 10-15.

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Influence of Rail Fastener Failure on Vehicle Dynamic Derailment

State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

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Author Bio:
XIAO Xin-biao(1978-), male, doctoral student, 86-28-87634355, xiao.xinbiao@163.com
Received Date: 2005-07-21
Publish Date: 2006-03-25

Abstract

Abstract

In order to investigate the effect of disabled fastener system on railway vehicle derailment, a non-symmetrical vehicle-track coupling dynamics model was established.The abrupt change of track stiffness along the track was assumed to simulate the failure situation of rail fastener system.The effect of discrete sleeper support on the coupling dynamics of vehicle and track was taken into consideration.The creepage formulas of wheel/rail rolling contact were deduced, in which the lateral, vertical and torsional motions of rail were taken into account, the normal forces of wheel/rail were calculated by Hertzian contact theory, the creep forces of wheel/rail rolling contact were decided by the nonlinear creep theory of Shen.The motion equations of vehicle/track coupling system were solved with new explicit integration method.The effect of five seriate fasteners' system in different failure situations on railway vehicle derailment was analyzed and evaluated.The ratio of lateral force and vertical force on wheel and rail, wheel load reduction ratio, vehicle derailment time and the variations of contact points on wheel treads were computed.Numerical computation result indicates that when the failure index increases from 0.8 to 1.0, that is to say, rail fasteners experience a process from almost looseness to complete looseness, the influence of rail fastener failure on vehicle dynamic derailment shows an exponential rule.
- railway engineering,
- railway vehicle,
- track,
- dynamic derailment,
- vehicle/track coupling dynamics,
- failure

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References(13)

References

[1]	MIYAMOTO M. Mechanism of Derailment Phenomena of Railway Vehicle[J]. QR of RTRI, 1996, 37 (1): 147-155.
[2]	ELKINS J A, WU H. Angle of Attack and Distance-Based Criteria for Flange Climb Derailment[J]. Vehicle System Dynamics Supplement, 1999, 33 (2): 293-305.
[3]	YANG Chun-lei, ZHAI Wan-ming. Direct Method for Evaluation of Wheel Derailment in Simulation of Railway Vehicle Dynamics[J]. Journal of Traffic and Transportation Engineering, 2002, 2 (3): 23-26. (in Chinese) doi: 10.3321/j.issn:1671-1637.2002.03.005
[4]	KALMEL A, SWEET L M. Wheelset Mechanics During Wheel Climb Derailment[J]. Transactions of ASME, 1984, 51 (5): 680-686.
[5]	WU Ping-bo, WANG Yong. Derailment Safety of Railway Freight Cars[J]. Journal of Traffic and Transportation Engineering, 2001, 1 (2): 18-20. (in Chinese) doi: 10.3321/j.issn:1671-1637.2001.02.005
[6]	MIYAMOTO T, ISHIDA H, MATSUO M. Running Safety of Vehicle as Earthquake Occurs[J]. QR of RTRI, 1997, 38 (2): 117-122.
[7]	ZENG Qing-yuan, XIANG Jun, LOU Ping. A Break through in Solving the Problem of Train Derailment—the Approach of Random Energy Analysis[J]. Engineering Science, 2002, 4 (12): 9-20. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GCKX200212002.htm
[8]	JIN X, WU P, WEN Z. Effects of Structure Elastic Deformations of Wheelset and Track on Creep Forces of Wheel/Rail in Rolling Contact[J]. Wear, 2002, 253 (2): 247-256.
[9]	ZHAI W M, CAI C B, GUO S Z. Coupling Model of Vertical and Lateral Vehicle/Track Interactions[J]. Vehicle System Dynamics, 1996, 26 (1): 61-79.
[10]	ZHOU Jin-xiong, LIU Zeng-jie, ZHAO Guo-tang. Computer Simulation Study on the Mechanism of Derailment of Freight Car on Tangent Track[J]. Journal of the China Railway Society, 2000, 22 (Sup): 15-19. (in Chinese)
[11]	ZHAI W M. Two Simple Fast Integration Methods for Large-Scale Dynamic Problemin Engineering[J]. International Journal for Numerical Methods in Engineering, 1996, 39 (24): 4 199-4 214.
[12]	金学松, 刘启跃. 轮轨摩擦学[M]. 北京: 中国铁道出版社, 2004.
[13]	翟婉明. 车辆-轨道耦合动力学[M]. 北京: 中国铁道出版社, 2002.