某动车牵引变压器振动及传递分析  

Analysis of Vibration and Vibration Transmission for EMU Traction Transformer

作　　者：张远亮[1] 张立民[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《铁道机车车辆》2015年第1期32-35,共4页Railway Locomotive & Car

基　　金：国家科技支撑计划项目(2009BAG12A04-C03)

摘　　要：为研究某动车牵引变压器振动及传递特性,测试了变压器在负载开风机状态振动加速度。结果表明:牵引变压器底部振动较小,变压器箱体壁横向(法向面)振动较大,与变压器铁芯横向放置有关。同时,振动烈度能较好的反应变压器振动情况;牵引变压器的振动基频为100 Hz,而且其振动能量绝大部分都集中在100 Hz,倍频处的振动迅速减小;牵引变压器振动经橡胶隔振器传递到车体侧墙及车内地板,振动未出现放大现象。该橡胶隔振器、侧墙内装材料和地板内装材料隔振性能较好。Vibration test on load and fans-opened has been done for study vibration and vibration transmission of EMU traction transformer.The results show that vibration at the bottom of traction transformer is smaller,while vibration at the side（normal）is bigger for the horizontal placement of transformer core.Vibration severity can be better reaction transformer vibration;the vibration baseband of traction transformer is 100Hz and most of dynamic energy are concentrated in 100Hz.Vibration decreases rapidly at vibration multiplier;traction transformer vibration transmission through the rubber isolator to the carbody sidewalls and floor,vibration amplification phenomenon does not appear.The isolation performance of rubber isolator,sidewall interior materials and floor interior material is better.

关 键 词：动车 牵引变压器 振动烈度 振动基频 

分 类 号：U266[机械工程—车辆工程]