Influence of wheel harmonic wear on wheel-rail vertical force and vehicle stability

被引：0

作者：

Xie J. ^{[1
,2
]}

Chen Z. ^{[1
]}

Pan Y. ^{[2
]}

Xie J. ^{[1
,2
]}

Wang Q. ^{[2
]}

机构：

[1] School of Traffic and Transportation Engineering, Central South University, Changsha

[2] Changsha Metro Group Co. Ltd., Changsha

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2020年 / 51卷 / 07期

关键词：

Single excitation; Superposition excitation; Vehicle stability; Vehicle/track coupling model; Wheel harmonic wear; Wheel-rail vertical force;

D O I：

10.11817/j.issn.1672-7207.2020.07.026

中图分类号：

学科分类号：

摘要：

Considering that in the production process of vehicle wheels, there are mass eccentricity or geometric eccentricity, the harmonic wear of wheels occurs after the train runs for a period, wheel harmonic wear seriously affects wheel-rail vertical force and vehicle stability, a subway vehicle in China was taken as a reference, the theory of vehicle-track coupling model and Fourier series were used to simulate the 2nd and 3rd order wheel harmonic wear, and the vehicle-track coupling model and wheel harmonic wear model of the vehicle were established. The effects of wheel harmonic wear and track irregularity excitation on wheel-rail vertical force and vehicle stability were simulated and calculated. The difference of vehicle dynamic parameters between single excitation and superposition excitation conditions was analyzed. The results show that the influence of velocity on wheel-rail vertical force is much greater than that of the amplitude and phase difference. Track irregularity excitation has little effect on wheel-rail vertical force. With the increase of speed, the wheel harmonic wear irregularity excitation has significant impact on vehicle running smoothness. © 2020, Central South University Press. All right reserved.

引用

页码：2013 / 2020

页数：7

共 20 条

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