减振器支柱总成衬套对整车NVH性能影响的研究  

Research on the Effect of Bushing of Damper Strut Assembly on NVH Performance of Vehicle

作　　者：徐劲力[1] 郭园园 褚金丽 XU Jin-li;GUO Yuan-yuan;CHU Jin-li(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Hubei Wuhan430070,China)

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070

出　　处：《机械设计与制造》2020年第8期11-14,20,共5页Machinery Design & Manufacture

基　　金：柳州市应用技术研究与开发计划(2017AA10102);内蒙自治区高校科学研究重点项目(NJZZ16369)。

摘　　要：悬架总成中的橡胶衬套作为悬架系统各构件的连接元件,对悬架及整车的NVH性能有很大影响。建立含减振器支柱总成橡胶衬套及不含相应衬套的整车振动系统数学模型,求解得到,橡胶衬套可有效地改善整车的NVH性能;基于ADAMS/CAR建立整车平顺性仿真模型,仿真结果验证了数学模型及分析结果的准确性;基于该数学模型采用灵敏度分析方式研究不同连接处衬套刚度对整车振动响应的影响并进行优化设计,结果表明,优化衬套刚度可进一步提升整车的NVH性能。研究结果对整车NVH性能的优化设计具有一定的参考意义。The rubber bushing in the suspension assembly is the connecting component of the suspension system,which has a great influence on the NVH performance of the suspension and the whole vehicle. The mathematical model of the whole vehicle vibration considering the rubber bushing of the shock absorber strut assembly and the mathematical models without considering its influence are established,it can be found that the rubber bushing can effectively improve the NVH performance of the vehicle;and the simulation model of the vehicle ride comfort is established basedon Adams/car,the accuracy of the mathematic model and the analysis result are verified by simulation results;the effect of the stiffness of the bushing on the vibration response of the whole vehicle is studied based by sensitivity analysis on the mathematical model and to optimize accordingly,and the results show that the NVH performance of the vehicle can be further improved by optimizing the bushing stiffness. The research results have a certain reference meaning to the optimization design of the NVH performance of the vehicle.

关 键 词：橡胶衬套 整车振动数学模型 整车动力学仿真 NVH 灵敏度分析与优化 

分 类 号：TH16[机械工程—机械制造及自动化]