后桥总成啸叫噪声问题分析及结构优化  

Gear Whine Analysis and Structural Optimization of Rear Axle Assembly

作　　者：徐海军 李海建 刘锋 林松 Xu Haijun;Li Haijian;Liu Feng;Lin Song(Liuzhou Wuling Automobile Industry Co.,Ltd,Guangxi Liuzhou 545007)

机构地区：[1]柳州五菱汽车工业有限公司,广西柳州545007

出　　处：《汽车实用技术》2020年第9期134-137,共4页Automobile Applied Technology

摘　　要：后桥总成的啸叫噪声是影响汽车质量的主要问题之一。为降低啸叫噪声,文章结合某车型后桥总成啸叫噪声问题,提出一种基于传动轴-后桥系统动态响应分析的齿轮优化设计解决方法。首先对后桥总成啸叫问题产生的原因进行分析,利用MASTA软件建立传动轴-后桥动态响应分析模型并进行仿真分析得到关键点的振动加速度值及齿轮错位量。然后根据仿真分析结果通过格里森软件对齿轮设计参数优化达到降低齿轮传递误差,降低啸叫噪声的目的。最后通过实车测试,验证该优化设计方法是可行的,为汽车NVH性能提升的优化设计提供了一种可行的设计思路。The noise of the rear axle assembly is one of the main problems affecting automobile quality.A gear optimization method based on dynamic response analysis of the transmission axle-rear axle system is proposed to solve gear whine problem.Firstly,the cause of the noise of the rear axle assembly is analyzed.A dynamic response analysis model of the transmission axle-rear axle system is established using MASTA software.Then vibration accelerations in key positions and gear displacement quantities are obtained by the simulation analysis.According to the results,gear parameters are resized by Gleason software to reduce the transmission error of gear.Finally,the design method is verified to be feasible through the real vehicle test,providing a feasible design idea for the NVH performance improvement of automobile.

关 键 词：后桥总成 啸叫噪声 齿轮结构优化 

分 类 号：U463.3[机械工程—车辆工程]