Vibration characteristics and isolation optimization of a traction converter of high-speed EMU
WANG Yongsheng1,DING Jie1,2,ZHANG Ping2,RONG Zhilin1,LIU Da1,ZHOU Han1
1. Technology Center,Zhuzhou CSR Electric Times Co.,Ltd.,Zhuzhou 412001,China；
2. College of Civil Engineering and Mechanics,Xiangtan University,Xiangtan 411105,China
The vibration of a certain type of high-speed EMU traction converter and its internal suspension vibration isolator were studied,aiming at the high frequency vibration on the EMU vehicle floor. Loading and workshop vibration tests were carried out,theoretical and experimental analyses were performed to evaluate the vibration characteristics of the traction converter and the vibration isolation performance of the isolator mounted between transformer and converter cabinet. A method to reduce the vibration of this type of converter was proposed by optimizing the parameters of the isolator. A comparative simulation analysis on the isolation effects before and after optimization was carried out by using finite element and multi-body dynamics softwares. The results indicate that by optimizing the parameters of vibration isolator,the vibration of this type of traction converter can be significantly reduced and resonance does not occur.
王永胜1，丁杰1,2，张平2，荣智林1，刘大1，周汉1. 高速动车组牵引变流器振动特性及隔振优化研究[J]. 振动与冲击, 2017, 36(2): 134-138.
WANG Yongsheng1,DING Jie1,2,ZHANG Ping2,RONG Zhilin1,LIU Da1,ZHOU Han1. Vibration characteristics and isolation optimization of a traction converter of high-speed EMU. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(2): 134-138.
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