汽车传动轴橡胶支撑圈刚度与阻尼的匹配方法研究  

Study on Matching Method of Stiffness and Damping for Deigning Rubber Bearing Collar of Drive Shaft

作　　者：左力[1] 卢曦[1] 

机构地区：[1]上海理工大学机械工程学院,上海200093

出　　处：《重庆理工大学学报（自然科学）》2015年第6期7-13,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51175346);上海市科委基础研究重点基金资助项目(12JC1407000);上海市科技攻关基金资助项目(14521100500);上海汽车工业科技发展基金会资助项目(1210)

摘　　要：在橡胶支撑圈质量和安装位置已定的条件下,根据传动轴的实际工况要求,一改设计人员以往只注重橡胶支撑圈刚度而忽略阻尼的做法,提出一种通过综合匹配橡胶支撑圈刚度和阻尼来获得理想振动传递率的方法。根据振动传递率计算公式,选择预设减振频率范围和合适的减振橡胶,通过更改橡胶支撑圈结构、形状或尺寸等参数将支撑刚度约束在理论刚度范围内,获得理想的振动传递率,尽可能地降低传动轴振动。运用有限元分析软件对橡胶支撑圈进行了仿真分析,验证了橡胶支撑圈的变刚度特性,并通过实车振动试验进一步验证了匹配方法的减振效果,对避免传动轴在工作频率范围内产生共振有着一定的工程指导意义。According to certain working condition of drive-shaft and the formulas of vibration transmissibility,an effective method for achieving ideal vibration transmissibility by matching stiffness and damping was provided. After choosing due excitation frequency and rubber material,stiffness was engaged in the theoretic range by changing structure,shape,size and so on,in order to achieve ideal vibration transmissibility for decreasing vibration. In addition,finite element analysis and vehicle test were functioned,which shows that the matching-method is practically useful in avoiding the resonancephenomenon in operating-frequency range.

关 键 词：传动轴 橡胶支撑圈 刚度 阻尼 匹配 

分 类 号：U463[机械工程—车辆工程]