Abstract：It is considered to reproduce the track random irregularity on the test bench to simulate the vibration environment of the train and to test the vibration response of the whole or parts of the vehicle system. Combined with the characteristics of track geometric irregularity and the structure of vibration test bench, the motion control method of the test bench and the method to reproduce track geometric irregularity on the test bench are studied. Based on the full-scale virtual prototype model of the test bench, the measured irregularity signals of the high-speed railway from Wuhan to Guangzhou are successfully reproduced. On this basis, the rigid flexible coupling dynamic model of a certain type of train bogie under the condition of servicing is established. Modal analysis of the bogie frame is carried out with track geometric irregularity reproduced by virtual test bench as excitation. The analysis shows that under the excitation of track irregularity, the corresponding modes of 18Hz, 67Hz, 85Hz and 96.8 Hz of bogie frame will be excited when the bogie runs at 250km / h.
张嘉，邬平波，刘潮涛，宋烨，李凡松. 基于六自由度振动试验台的轨道几何不平顺复现方法及应用研究[J]. 振动与冲击, 2022, 41(8): 55-71.
ZHANG Jia，WU Pingbo，LIU Chaotao，SONG Ye，LI Fansong. A track geometric irregularity reproduced method and its application based on 6DOF vibration test bench. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(8): 55-71.
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