轴的横向振动动态特性设计  

The Dynamic Design of Horizontal Axis Vibration Characteristics

作　　者：雷改丽[1] 

机构地区：[1]宝鸡文理学院,陕西宝鸡721007

出　　处：《机械传动》2011年第4期63-66,共4页Journal of Mechanical Transmission

基　　金：陕西省教育厅专项科研计划项目(09JK327)

摘　　要：针对分级变速的传动轴,提出一种动态设计方法。采用有限元模型建立了轴的横向振动方程。以模态频率对结构尺寸的灵敏度为依据,对影响动态性能敏感的参数进行修改,使轴的前几阶或某几阶模态频率恰好处于预先指定的一组期望值上,得到多种修改方案。为了兼顾结构工艺性的要求,采用了优化方法,获得满足动态性能的最小修改量。该方法也可以用于其他振动系统的动态设计,具有通用性。A dynamic design method is proposed for graduation variable speed shaft.The finite element model is used for a horizontal-axis vibration.According to the sensitivity of the modal frequency to the structure size,dynamic performance parameters are changed in order to bring axis previous bands or certain frequency bands modal happening in a group of pre-specified expectations,much solution is got.Consideration the structure craft,by the optimization methods,the minimum amount of dynamic performance are obtained.The methods can also be used for other dynamic vibration system design.

关 键 词：轴的横向振动 有限元模型 模态频率 灵敏度 

分 类 号：TB533.1[理学—物理]