高速列车车轮多边形磨耗演变行为

doi:10.3901/JME.2020.22.184

机械工程学报 ›› 2020, Vol. 56 ›› Issue (22): 184-189.doi: 10.3901/JME.2020.22.184

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高速列车车轮多边形磨耗演变行为

丁军君¹, 杨九河², 胡静涛¹, 李芾¹

1. 西南交通大学机械工程学院成都 610031;
2. 中国铁路成都局集团有限公司成都 610082

收稿日期:2019-11-23 修回日期:2020-03-18 出版日期:2020-11-20 发布日期:2020-12-31
作者简介:丁军君,男,1985年出生,博士,副教授。主要研究方向为机车车辆设计理论、轮轨关系及磨耗。E-mail:dingjunjun@swjtu.edu.cn;杨九河,男,1986年出生,工程师。主要研究方向为动车组检修、运用及应急处置。E-mail:tanacota@163.com;胡静涛,男,1993年出生。主要研究方向为机车车辆系统动力学。E-mail:1129518030@qq.com;李芾,男,1956年出生,博士,教授,博士研究生导师。主要研究方向为机车车辆设计理论。E-mail:lifu@swjtu.edu.cn
基金资助:
国家自然科学基金（51965016）和四川省重点研发（2019YFG0042）资助项目。

Evolution of the Polygonal Wear of High-speed Train Wheels

DING Junjun¹, YANG Jiuhe², HU Jingtao¹, LI Fu¹

1. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031;
2. China Railway Chengdu Group, Chengdu 610082

Received:2019-11-23 Revised:2020-03-18 Online:2020-11-20 Published:2020-12-31

摘要/Abstract

摘要： 车轮多边形不仅会严重影响高速列车的运行性能，同时会随着车轮的磨耗发生不断演变，因此其演变行为值得关注。对高速列车车轮多边形磨耗的演变过程进行数值模拟，并分析相位差对多边形磨耗的影响。结果表明，车轮初始3阶多边形会演变成多阶混合多边形，其中3的整数倍阶多边形占主要地位；车轮多边形发展过程中，存在一个磨耗急剧增大的"转折里程"，应在"转折里程"之前对车轮多边形进行处理；车轮多边形使轮轨垂向力和轮对构架垂向振动加速度增大，同时导致跳轨现象，影响车辆运行安全；多边形相位差会导致车轮的磨耗迅速增加，磨耗率在轮相位差为1/2周期时达到最大。研究成果为车轮多边形的控制手段及现场镟修策略提供了理论依据。

关键词: 高速列车, 车轮多边形, 磨耗, 动力学性能, 相位差

Abstract: The wheel polygons will not only seriously affect the running performance of high-speed trains, but also continue to evolve with the wear of the wheels, so its evolutionary behavior deserves attention. The wheel polygonal wear evolution behaviour and the effects of phase difference on polygonal wear are researched by simulation method. The simulation results show that the initial 3rd order polygon will evolve to mixed orders, and the integer multiple of 3 orders still in the main position. In the polygonal wear evolution, there is a turning mileage which the wave depth suddenly and sharply increased, so the wheel polygonal must be treating before the turning mileage. The results also show that the wheel polygonal wear evolution will cause an increase in vertical acceleration of wheelset and frame, and also increase the risk of the wheel jumping the rail. Compared with no phase difference, the maximum wave depth of the polygonal wheel rapidly increases when the phase difference exist, and the wear rate reach the peak when the phase difference is 1/2 cycle. The research provides a certain theoretical basis for the control methods and repair strategies of wheel polygons.

Key words: high-speed trains, wheel polygonalization, wear, dynamic performance, phase difference

中图分类号:

U271

丁军君, 杨九河, 胡静涛, 李芾. 高速列车车轮多边形磨耗演变行为[J]. 机械工程学报, 2020, 56(22): 184-189.

DING Junjun, YANG Jiuhe, HU Jingtao, LI Fu. Evolution of the Polygonal Wear of High-speed Train Wheels[J]. Journal of Mechanical Engineering, 2020, 56(22): 184-189.

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高速列车车轮多边形磨耗演变行为

Evolution of the Polygonal Wear of High-speed Train Wheels

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