基于瑞雷函数的整备质量对车体基频影响的研究  

Study on the influence of basic frequency of vehicle body affected by outfit mass based on R.L. function

作　　者：闫雪冬[1] 马思群[2] 丁彦闯[2] 兆文忠[2] 

机构地区：[1]长春轨道客车股份有限公司研发中心,吉林长春130062 [2]大连铁道学院机械工程系,辽宁大连116028

出　　处：《机械设计》2004年第6期40-41,共2页Journal of Machine Design

基　　金：国家 8 63计划资助项目 (2 0 0 2AA41 1 32 0 )

摘　　要：基于瑞雷函数 ,从理论上论述了整备质量及其位置对车体基频的影响。结果表明 ,车体结构上的质量块及其形心位置对基频的影响是非线性的。两个工程实例也表明 ,空车与重车状态下车辆振频不仅不同 ,且两种状态下的振频也不存在一一对应的线性关系。The influence on the basic frequency of vehicle body affected by outfit mass and its location was discussed in theory based on R.L. function. The result shows that the influence of basic frequency affected by the mass block of vehicle body structure and its location of centroid is nonlinear. Two engineering living examples also indicate that the vibration frequencies of vehicle under unloading and loading status are not only different but also doesn't exist linear relations corresponding to one another.

关 键 词：集中质量 基频 模态分析 非线性 

分 类 号：TH122[机械工程—机械设计及理论] U271[机械工程—车辆工程]