新型阻尼车轮振动特性试验与仿真方法  

Test and simulation method on vibration characteristics of new type of damped wheel

作　　者：王谛[1] 薛弼一[1] 肖新标[1] 韩健[1] 王瑞乾[1] 金学松[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《计算机辅助工程》2014年第5期7-14,共8页Computer Aided Engineering

基　　金：国家科技支撑计划(2009BAG12A01-B06);国家高技术研究发展计划("八六三"计划)重点项目(2011AA11A103-2-2);教育部创新团队发展计划(IRT1178;SWJTU12ZT01);中央高校基本科研业务费专项资金(SWJTU12ZT01)

摘　　要：采用仿真与试验相结合的方法分别对3种辐板形式车轮安装新型辐板屏蔽阻尼器前后的振动特性进行分析,结果表明：在安装辐板屏蔽阻尼器后,3种车轮在整个频域范围（0～6 400 Hz）内均具有良好的减振效果;斜型辐板和双S型辐板车轮较直型辐板车轮的径向振动与1节圆轴向振动更容易发生耦合;辐板屏蔽阻尼器在有效降低3种辐板形式车轮的径向振动和0节圆轴向振动的同时,还能够减小车轮径向振动与轴向振动的耦合.由阻尼车轮的减振特性可以预测,辐板屏蔽阻尼器能够有效降低车轮的滚动噪声和曲线啸叫噪声.The vibration characteristics of three types of webbed wheels with or without a new webmounted noise shield are analyzed by the method of combining test with simulation. The results show that,the vibration reduction effect of the three types of wheels which are installed with the web-mounted noise shield is significant in the whole frequency range of 0 ～ 6 400 Hz; the couplings between the radial vibration and the one-nodal-circle axial vibration of the curved webbed wheels and the double-S webbed wheels are easier to appear than that of the straight wheels; as to the three types of webbed wheels,the web-mounted noise shield can not only reduce the radial vibration and the zero-nodal circle axial vibration,but also alleviate the coupling between the radial vibration and the axial vibration. According to the vibration characteristics of the damped wheels,it can be predicted that the web-mounted noise shield can effectively reduce the rolling and the curve squeal noise.

关 键 词：阻尼车轮 振动特性 辐板车轮 模态试验 有限元 

分 类 号：U270.33[机械工程—车辆工程]