地铁车辆车体振动特性柔性仿真与测试  

Flexible simulation and test of vibration characteristic of car body for metro vehicle

作　　者：耿烽 宋浩 李树栋 张袁元[3] GENG Feng;SONG Hao;LI Shu-dong;ZHANG Yuan-yuan(Nanjing Institute of Railway Technology,Nanjing 210031,China;CRRC Nanjing Puzhen Co.,Ltd.,Nanjing 210031,China;Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京铁道职业技术学院,江苏南京210031 [2]中车南京浦镇车辆有限公司,江苏南京210031 [3]南京工程学院,江苏南京211167

出　　处：《电力机车与城轨车辆》2022年第1期47-52,共6页Electric Locomotives & Mass Transit Vehicles

摘　　要：文章依据刚柔耦合结构动力学理论,阐述了地铁车辆柔性车体和刚性转向架耦合模型的动力学计算以及提取车体某些具体位置振动加速度信号的过程;基于振动信号测试理论,现场测试与仿真计算同工况下的同型地铁车辆相同位置的振动加速度信号。通过将仿真结果与现场测试采集的信号数据进行对比,验证了仿真方法与结果的正确性。最后将现场测试的振动加速度信号进行时域处理和频域处理,得到车体相应位置的振动特性,进而可以判断地铁车辆车体整体的振动特性。Based on the rigid-flexible coupling structure dynamics theory, the dynamic calculation of the coupling model of flexible car body and rigid bogie and the process of extracting vibration acceleration signals of some specific positions of the car body are described. According to the theory of vibration signal test, the vibration acceleration signals of the same type of metro vehicle at the same position in the same working condition is tested in the field. By comparing the simulation result with the signal data collected of field test, the correctness of the simulation method and result is verified. Finally, the vibration acceleration signals of field test are processed in time domain and frequency domain to obtain the vibration characteristic of the corresponding positions of the car body,and then the overall vibration characteristics of the car body can be judged.

关 键 词：地铁车辆 振动特性 刚柔耦合 动力学仿真 加速度 

分 类 号：U270.2[机械工程—车辆工程]