高速列车车轮多边形动力学试验与仿真研究
Dynamic Test and Simulation of High-speed Train Polygonal Wheels
- 机车电传动 2021年0卷第6期 页码：42-48
- 作者机构：
1.西南交通大学 机械工程学院，四川 成都 610031
2.中国铁路成都局集团有限公司，四川 成都 610082
- 作者简介：
徐冬冬（1998—），女，硕士研究生，研究方向为车辆系统动力学；E-mail：xudongdong@my.swjtu.edu.cn
- 基金信息：四川省重大科技专项项目(2020ZDZX0026)
DOI：10.13890/j.issn.1000-128x.2021.06.005
中图分类号：
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徐冬冬, 杨九河, 丁军君. 高速列车车轮多边形动力学试验与仿真研究[J]. 机车电传动, 2021,0(6):42-48.
Dongdong XU, Jiuhe YANG, Junjun DING. Dynamic Test and Simulation of High-speed Train Polygonal Wheels[J]. Electric Drive for Locomotives, 2021,0(6):42-48.
徐冬冬, 杨九河, 丁军君. 高速列车车轮多边形动力学试验与仿真研究[J]. 机车电传动, 2021,0(6):42-48. DOI： 10.13890/j.issn.1000-128x.2021.06.005.
Dongdong XU, Jiuhe YANG, Junjun DING. Dynamic Test and Simulation of High-speed Train Polygonal Wheels[J]. Electric Drive for Locomotives, 2021,0(6):42-48. DOI： 10.13890/j.issn.1000-128x.2021.06.005.
摘要
国内某列动车组的车轮存在18阶和19阶的车轮多边形，为研究车轮多边形对车辆振动行为的影响，对该车进行了线路跟踪试验，对关键部件的振动加速度进行了测量和分析。以线路跟踪试验条件为基础，采用SIMPACK建立动力学仿真模型，输入实测数据，从时域和频域方面对比线路试验与动力学仿真获得的各个关键部件的振动数据，并比对结果差异，分析产生的原因。结果表明：构架垂向加速度的线路试验数据略大于仿真数据，轴箱垂向加速度总体差距较小；仿真和线路试验构架振动能量均集中在540 Hz左右，仿真试验轴箱振动能量集中在527 Hz左右，线路试验轴箱振动能量集中在542 Hz左右，均接近由19阶车轮多边形引起的振动频率（547.81 Hz），且两者振动能量起伏趋势大体相似。说明仿真试验基本可以还原线路试验，且能较为准确地反映车轮多边形对车辆振动行为的影响。
Abstract
It is found that there are 18-19 order wheel polygons in the wheels of an EMU. In order to study the in fluence of wheel polygons on the vibration behavior of the vehicle, the line test of the vehicle was carried out, and the vibration acceleration of the key components was measured and analyzed. Based on the line tracking test conditions, the SIMPACK was used to establish the dynamic simulation model, and the measured wheel polygon data was used as the input. The vibration data of each key component obtained by the line experiment and the dynamic simulation was compared from the time domain and frequency domain, and the reasons for the difference of the comparison results were analyzed. The results showed that the line test data of the vertical acceleration of the frame were slightly larger than the simulation data, and the overall difference of the vertical acceleration of the axle box was small. The vibration energy of the frames in the line test and simulation test was concentrated at about 540 Hz, the vibration energy of the axle box in the simulation test was concentrated at 527 Hz, and the vibration energy of the axle box in the line test was concentrated at 542 Hz, which was close to the frequency caused by the 19th-order wheel polygon (547.81 Hz), and the fluctuation trend of the vibration energy of the two were roughly similar. The simulation test can basically restore the line test and accurately re flect the in fluence of wheel polygon on vehicle vibration behavior.
关键词
高速列车动车组车轮多边形线路试验仿真
Keywords
high-speed trainEMUswheel polygonline testsimulation
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