摘要
对地铁车辆踏面修形器背板出现的早期疲劳裂纹进行了材料理化分析和线路振动测试,结果表明,车轮存在5阶多边形并引起踏面修形器45 Hz振动,这是造成踏面修形器疲劳裂纹产生的主要原因。文章结合现场维修策略、兼顾维护经济性,对踏面修形器控制逻辑提出了优化方案,能有效抑制车轮多边形产生,减少异常振动,提高踏面修形器的使用寿命。
This paper carries out the material physcicochemical analysis and line vibration test of the early fatigue crack on the back plate of metro vehicle tread modifier.The results show that the wheel has 5 order polygon and causes 45 Hz vibration of the tread modifier,which is the cause of fatigue crack of the tread modifier.Based on the on-site maintenance strategy and considering economy,this paper puts forward an optimization scheme for control logic of tread modifier,which can effectively restrain the generation of wheel polygon,reduce abnormal vibration and improve the service life of tread modifier.
作者
宋庆伟
伍安胥
陈逊
李春来
相运成
任毅
刘海涛
SONG Qingwei;WU Anxu;CHEN Xun;LI Chunlai;XIANG Yuncheng;REN Yi;LIU Haitao(CRRC Changchun Railway Vehicle Co.,Ltd.,Changchun 130062,China;CRRC Qishuyan Locomotive&Rolling Stock Technology Research Institute Co.,Ltd.,Changzhou 213000,China;Jilin Communications Polytechnic,Jilin 130062,China)
出处
《铁道车辆》
2022年第5期119-122,130,共5页
Rolling Stock
