基于偏相干原理的橡胶隔振器的隔振性能分析  

Vibration Isolation Performance Analysis of Rubber Isolator Based on Partial Coherence Principle

作　　者：姚斌辉[1] 许增辉 何融[1] YAO Binhui;XU Zenghui;HE Rong

机构地区：[1]上海汽车集团股份有限公司技术中心,上海201804

出　　处：《上海汽车》2020年第5期12-14,18,共4页Shanghai Auto

摘　　要：针对橡胶隔振器多激励输入的特点,提出了基于偏相干原理的橡胶隔振器的隔振性能计算方法。在计算模型中,通过去除干扰激励的影响,得到所研究激励传递到被动端的响应,从而计算得到偏相干的隔振率。采用递归迭代算法给出了偏相干隔振率的计算流程。应用该方法分别计算了悬置、前控制臂衬套和扭力梁衬套的偏相干隔振率,结果表明,偏相干隔振率计算方法可以有效去除干扰,得到更为真实的橡胶隔振件的隔振率。Aiming at the characteristics of multi-excitation input of rubber vibration isolator,a calculation method of vibration isolation performance of rubber vibration isolator based on partial coherence principle is proposed.In the calculation model,by removing the influence of the interference excitation,the response of the studied excitation to the passive end is obtained,thereby calculating the partial coherent vibration isolation rate.A recursive iterative algorithm is used to calculate the partial coherent vibration isolation rate.Using this method,the partial coherent vibration isolation rates of the mount,the front control arm bushing and the torsion beam bushing are calculated.The results show that the calculation method of partial coherent vibration isolation rate can effectively remove interference and obtain a more realistic vibration isolation rate of rubber vibration isolator。

关 键 词：偏相干原理 橡胶隔振件 衬套 悬置 

分 类 号：U463[机械工程—车辆工程]