车用发电机降噪优化设计  

Optimization Design of Noise Reduction for Vehicle Generator

作　　者：田素琴 谢佳茵[1] 董芳余 林琳 TIAN Suqin;XIE Jiayin;DONG Fangyu;LIN Lin(Automobile and Transportation Engineering College,Liaoning University of Technology,Jinzhou 121001,China)

机构地区：[1]辽宁工业大学汽车与交通工程学院,辽宁锦州121001

出　　处：《汽车实用技术》2023年第21期111-114,共4页Automobile Applied Technology

摘　　要：文章使用静音室对某型车用交流发电机进行噪声试验,并通过LMS软件进行后期分析,找到影响噪声的关键阶次点为36阶次。针对该阶次点制定试验方案并对试验数据进行分析,确定发电机定子振动是产生噪声的主要原因,通过分析找到影响该阶次噪声的成因部件。参考以往的工程经验,对发电机进行优化设计,并将优化后发电机进行试验验证,最终得以改善。In this paper,the noise test of a certain type of vehicle alternator is carried out by using the silence chamber,and the LMS software is used to analyze the noise later,and the key level point is found to be 36 orders.According to this order point,the test scheme is established and the test data is analyzed.The main cause of generator stator vibration is determined,and the cause components affecting this order noise are found.Referring to the previous engineering experience,the generator is optimized,and the optimized generator is tested and verified,and finally improved.

关 键 词：发电机 噪声测试 阶次分析 优化设计 

分 类 号：U467[机械工程—车辆工程]