摘要
在SIMPACK软件中建立地铁车辆动力学模型，基于FASTSIM算法和Braghin踏面磨耗模型，分析弹性滑动速度对磨耗的影响，并对车辆在直线、曲线和实际线路上运行时的车轮磨耗过程进行仿真。研究结果表明：磨耗计算中采用弹性滑动速度时结果更准确；车辆在直线上运行时，车轮磨耗分布在-30-35mm范围内，没有轮缘磨耗发生；车辆在曲线上运行时，车轮磨耗分布在-50-40mm范围内，踏面和轮缘同时出现磨耗，其磨耗速度远大于直线上的磨耗速度；车辆在国内某地铁线路上运行时，车轮磨耗主要分布在-50-40mm范围内，以轮缘磨耗为主，轮缘和踏面上的磨耗速度均随着运营里程的增加而变慢，轮缘厚度随运行里程的增加线性减小。
A dynamical model of metro vehicle is built through SIMPACK software, the influence of elastic slip velocity on wheel wear is analyzed based on FASTSIM algorithm and Braghin wear model. Then, the wheel wear of metro vehicle in different conditions including running on straight line, on curve line and the actual line are simulated. The results indicate that the wear results are more precise when elastic slip velocity is a- dopted; when metro vehicle running on a straight line, the wear will distribute in - 30~35 mm of the wheel profile and no wear occurs on the wheel flange when vehicle running on a curve line, the wear will distribute in - 50 - 40 mm of the wheel profile and wear would occur both on wheel flange and tread, the wear velocity is much higher than that on straight line; when vehicle running on the actual line, the wear distrib- utes in - 50-40 mm of the wheel profile and the flange wear is predominated, both the wear velocities of wheel flange and tread will be slow-down when the running distance increases, and the flange width decreases linearly with the increase of running distance
出处
《城市轨道交通研究》
北大核心
2013年第10期73-77,共5页
Urban Mass Transit
基金
中央高校基本科研业务费专项资金资助(SWJTU12CX041)
关键词
地铁车辆
车轮磨耗
仿真
metro vehicle
wheel wear
simulation
