某微型车驱动桥异响分析及优化  

Abnormal Noise Analysis and Optimization of a Mini-car Drive Axle

作　　者：赵应强 陈忠敏 郭凯[1] 韩超 张永强 夏立峰 ZHAO Yingqiang;CHEN Zhongmin;GUO Kai;HAN Chao;ZHANG Yongqiang;XIA Lifeng(Jian an Industrial Co.,Ltd.,Yaan Sichuan 625000,China;School of Mechanical Engineering,Sichuan University,Chengdu Sichuan 610065,China)

机构地区：[1]四川建安工业有限责任公司,四川雅安625000 [2]四川大学机械工程学院,四川成都610065

出　　处：《汽车零部件》2021年第4期11-13,共3页Automobile Parts

基　　金：四川省科技厅资助项目(2016GZ0347;2015GZ0033)。

摘　　要：驱动桥作为后驱车辆传动部件之一,其NVH性能是评价整车综合性能的重要环节之一。针对某微型车四挡滑行驱动桥异响,通过阶次分析及传递路径分析查找异响原因,再进行结构优化及测试验证。结果表明:优化后的驱动桥阶次噪声在异响点降低10 dB(A),异响消失,满足驱动桥噪声要求。As one of transmission parts for some vehicles,the drive axle is one of the important NVH performance evaluation parts in the corresponding whole vehicle development.The abnormal noise reason was analyzed by means of order analysis and transmission path analysis for a mini-car four-step sliding drive axle.According to the reason of abnormal noise,the structure optimization and test verification were carried out.The results show that order noise of drive axle is reduced by 10 dB(A)at the abnormal noise point,and the abnormal noise disappears,so as to meet requirement of drive axle noise.

关 键 词：阶次分析 传递路径分析 刚性 

分 类 号：U463.218[机械工程—车辆工程] TB533.2[交通运输工程—载运工具运用工程]