某机车牵引变流器振动特性及减振研究  

Vibration characteristics and reduction of a locomotive traction converter

作　　者：王永胜 廖金军 丁杰 曾亚平[2] 臧晓斌 夏亮 张平 WANG Yongsheng;LIAO Jinjun;DING Jie;ZENG Yaping;ZANG Xiaobin;XIA Liang;ZHANG Ping(China Railway Construction Heavy Industry Group Co.,Ltd.,Changsha 410100,China;Technology Center,Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou 412001,China;College of Civil Engineering and Mechanics,Xiangtan University,Xiangtan 411105,China)

机构地区：[1]中国铁建重工集团股份有限公司,长沙410100 [2]株洲中车时代电气股份有限公司技术中心,湖南株洲412001 [3]湘潭大学土木工程与力学学院,湖南湘潭411105

出　　处：《振动与冲击》2019年第18期242-247,276,共7页Journal of Vibration and Shock

基　　金：湖南省自然科学省市联合基金重点项目(12JJ8020)

摘　　要：针对某型机车牵引变流器振动过大的问题,通过添乘测试了解了牵引变流器实际振动环境及从车轮到牵引变流器内部的振动特性,确定了振动来源以及振动过大的原因,并与IEC61373标准进行对比;通过开展实测谱验证,成功复现了牵引变流器内部某电气设备的振动故障。在此基础上提出了针对性的减振方案,利用有限元软件对减振方案进行基于实测数据的仿真对比计算。结果表明,提出的减振方案具有明显的减振效果,能够显著降低牵引变流器在振动冲击激励下的应力水平。Aiming at the excessive vibration of a locomotive traction converter,the actual vibration environment and the vibration transmission characteristics from the wheel to traction converter were studied by field tests,and comparing with the IEC 61373 standard,the vibration source and the cause of excessive vibration were determined.By carrying out an experimental verification based on the measured spectrum,the vibration fault of a certain electrical equipment inside the traction converter was successfully reproduced.On this basis,the vibration reduction scheme for the installation structure of the traction converter was proposed,and the comparative numerical simulation of the vibration reduction scheme based on the measured data was carried out by using a FEM software.The results show that the vibration reduction scheme proposed has obvious damping effect and can significantly reduce the stress level of the traction converter under vibration and shock excitation.

关 键 词：机车 变流器 振动 仿真 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3