Wheel-rail impact responses induced by a wheel flat considering the equivalent fatigue damage of wheel/rail materials

PDF(3560 KB)

Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (2) : 33-44.

WANG Jinneng，JING Lin，HUANG Zhihui

Author information +

History +

Abstract

As one of the common forms of wheel tread defects, wheel flat can induce a large wheel-rail impact, seriously affecting train running stability and safety. A 3-D wheel-rail rolling contact finite element model was established to study the wheel-rail impact response caused by a wheel flat using an explicit finite element method in this study. The change of wheel-rail contact state during the whole process of wheel flat impacting rail was described, and the influence of initial fatigue damage and strain rate effect of wheel/rail materials on wheel-rail impact response was emphatically analyzed. Besides, the influences of train speed, flat length and axle load were also discussed. Results indicate that the maximum wheel-rail vertical contact force induced by a wheel flat is about 2.6~4.3 times of the quasi-static wheel-rail vertical contact force. Within the scope of the study, the initial fatigue damage and strain rate effect of wheel/rail materials exert no influence on wheel-rail vertical contact force, contact patch and contact pressure, but significantly affect von Mises equivalent stress, longitudinal stress, vertical stress, lateral stress and equivalent plastic strain. Furthermore, the train speed, flat length and axle load all have great effect on the wheel-rail impact response. The obtained results can provide technical support for the optimal design of wheel-rail system and the safety of train operation.

Key words

wheel flat / wheel-rail impact / fatigue damage / strain rate effect / finite element analysis

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

WANG Jinneng，JING Lin，HUANG Zhihui. Wheel-rail impact responses induced by a wheel flat considering the equivalent fatigue damage of wheel/rail materials[J]. Journal of Vibration and Shock, 2022, 41(2): 33-44

References

[1] STEENBERGEN M J M M. The role of the contact geometry in wheel-rail impact due to wheel flats: Part II[J]. Vehicle System Dynamics, 2007, 46(8): 713-737.
[2] UZZAL R U A, AHMED W, BHAT R B. Impact analysis due to multiple wheel flats in three-dimensional railway vehicle-track system model and development of a smart wheelset[J]. Journal of Rail and Rapid Transit, 2016, 230(2): 450-471.
[3] Wu Xingwen, RAKHEJA S, Ahmed A K W, et al. Influence of a flexible wheelset on the dynamic responses of a high-speed railway car due to a wheel flat[J]. Journal of Rail and Rapid Transit, 2018, 232(4): 1033-1048.
[4] 刘国云, 曾京, 邬平波, 等. 车轮扁疤所引起的车辆系统振动特性分析[J]. 机械工程学报, 2020, 56(8): 182-189.
LIU Guoyun, ZENG Jing, WU Pingbo, et al. Vibration characteristic analysis of vehicle systems due to wheel flat[J]. Journal of Mechanical Engineering, 2020, 56(8): 182-189.
[5] YANG Jiannan, THOMPSON D J. Time-domain prediction of impact noise from wheel flats based on measured profiles[J]. Journal of Sound and Vibration, 2014, 333(17): 3981-3995.
[6] 翟婉明. 铁路车轮扁疤的动力学效应[J]. 铁道车辆, 1994(7): 1-5.
ZHAI Wanming. The effect of wheel flat on vehicle dynamic performance[J]. Journal of the China Railway Society, 1994(7): 1-5.
[7] BOGDEVICIUS M, ZYGIENE R, BUREIKA G, et al. An analytical mathematical method for calculation of the dynamic wheel-rail impact force caused by wheel flat[J]. Vehicle System Dynamics, 2016, 54(5): 689-705.
[8] 杨新文, 翟婉明. 车轮扁疤激起的轮轨冲击噪声机理分析[J]. 振动与冲击, 2009, 28(8): 46-49.
YANG Xinwen, ZHAI Wanming. Wheel/rail impact noise due to wheel flats[J]. Journal of Vibration and Shock, 2009, 28(8): 46-49.
[9] 王忆佳, 曾京, 高浩, 等. 车轮扁疤引起的轮轨冲击分析[J]. 西南交通大学学报, 2014, 49(4): 700-705.
WANG Yijia, ZENG Jing, GAO Hao, et al. Analysis of wheel/rail impact induced by wheel flats[J]. Journal of Southwest Jiaotong University, 2014, 49(4): 700-705.
[10] REN Zunsong. An investigation on wheel/rail impact dynamics with a three-dimensional flat model[J]. Vehicle System Dynamics, 2018, 57(3): 369-388.
[11] YE Yunguang, SHI D, KRAUSE P, et al. Wheel flat can cause or exacerbate wheel polygonization[J]. Vehicle System Dynamics, 2020, 58(10): 1575-1604.
[12] WANG Zhiwei, CHENG Yao, MEI Guiming, et al. Torsional vibration analysis of the gear transmission system of high-speed trains with wheel defects[J]. Journal of Rail and Rapid Transit, 2020, 234(2): 123-133.
[13] BIAN J, GU Yuantong, MURRAY M H. A dynamic wheel-rail impact analysis of railway track under wheel flat by finite element analysis[J]. Vehicle System Dynamics, 2013, 51(6): 784-797.
[14] BIAN J, GU Yuantong, MURRAY M H. Numerical study of impact forces on railway sleepers under wheel flat[J]. Advances in Structural Engineering, 2013, 16(1): 127-134.
[15] HAN Liangliang, JING Lin, LIU Kai. A dynamic simulation of the wheel-rail impact caused by a wheel flat using a 3-D rolling contact model[J]. Journal of Modern Transportation, 2017, 25(2): 124-131.
[16] HAN Liangliang, JING Lin, ZHAO Longmao. Finite element analysis of the wheel-rail impact behavior induced by a wheel flat for high-speed trains: the influence of strain rate[J]. Journal of Rail and Rapid Transit, 2018, 232(4): 990-1004.
[17] JING Lin, HAN Liangliang. Further study on the wheel-rail impact response induced by a single wheel flat: the coupling effect of strain rate and thermal stress[J]. Vehicle System Dynamics, 2017, 55(12): 1946-1972.
[18] 刘卓, 敬霖. 基于位移激励法车轮扁疤引起的轮轨动态响应有限元分析[J]. 机械, 2020, 47(6): 37-43.
LIU Zhuo, JING Lin. Finite element analysis of the dynamic wheel-rail response by wheel flat based on displacement excitation method[J]. Machinery, 2020, 47(6): 37-43.
[19] 金学松, 沈志云. 轮轨滚动接触疲劳问题研究的最新进展[J]. 铁道学报, 2001, 23(2): 92-108.
JIN Xuesong, SHEN Zhiyun. Rolling contact fatigue of wheel /rail and its advanced research progress[J]. Journal of the China Railway Society, 2001, 23(2): 92-108.
[20] 魏长竹. 25.5m空调双层客车车轴疲劳寿命可靠性计算[J]. 铁道车辆, 1993(11): 8-13.
WEI Changzhu. Axle fatigue life reliability calculation of 25.5m air-conditioned double-decker train[J]. Journal of the China Railway Society, 1993(11): 8-13.
[21] ZHAO Xin, JIN Xuesong, ZHAI Wanming. Analysis of thermal-elastic stress of wheel-rail in rolling-sliding contact[J]. Journal of Mechanical Engineering, 2007, 20(3): 18-23.
[22] 韩亮亮, 敬霖, 赵隆茂. 基于Cowper-Symonds本构模型铁路车轮扁疤激发的轮轨冲击仿真分析[J]. 高压物理学报, 2017, 31(6): 785-793.
HAN Liangliang, JING Lin, ZHAO Longmao. Finite element simulation of the flat-induced wheel-rail impact based on the Cowper-Symonds empirical mode[J]. Chinese Journal of High Pressure Physics, 2017, 31(6): 785-793.