Influence of metro wheel polygonal wear on dynamic properties of wheel-rail system

被引：0
|
作者：
Liu, Qifeng [1 ]
Tao, Gongquan [2 ]
Liang, Hongqin [1 ]
Lu, Chun [1 ]
Wen, Zefeng [2 ]
Long, Hui [1 ]
机构：
[1] School of Mechanical Engineering, Southwest Jiaotong University, Chengdu,610031, China
[2] State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu,610031, China
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2022年 / 53卷 / 08期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Vehicle wheels - Wear of materials;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on the finite element analysis software ANSYS and the dynamics software SIMPACK, a metro vehicle-track rigid-flexible coupling dynamics model considering the flexibility of the track and wheelset was established. Taking the low-order and high-order wheel polygonal wear that often occurs during subway operation as an input of the dynamics model, the influence of wheel polygonal wear on the dynamic characteristics of the wheel-rail system at different speeds was investigated. The results show that if the excitation frequency of wheel polygonal wear is in the frequency range of 60−95 Hz, there is a strong linear correlation between the time-varying rate of wheel out-of-roundness and the vertical acceleration of the axle box. If the excitation frequency of wheel polygonal wear is near the P2 resonance frequency, there is a strong linear correlation between the time-varying rate of wheel out-of-roundness and the wheel-rail vertical force. When monitoring the status of the wheel polygonal wear, it can be considered to use the vertical acceleration of the axle box and the wheel-rail vertical force to evaluate the wear status of the wheel polygon in a certain frequency range. © 2022 Central South University of Technology. All rights reserved.
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页码：3222 / 3231
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