基于激光测振仪和有限元分析解决制动噪音  

Solving Brake Noise Based on Laser Vibrometer and Finite Element Analysis

作　　者：张兴林 Zhang Xinglin(R&D,Continental Brake Systems(Shanghai)Co.,Ltd,Shanghai 201821)

机构地区：[1]上海大陆汽车制动系统销售有限公司研发中心

出　　处：《汽车实用技术》2019年第22期74-77,共4页Automobile Applied Technology

摘　　要：盘式制动器的制动噪音是汽车界备受关注的问题,也是产品售后市场上广受抱怨的舒适性问题。文章针对某轿车盘式制动器的倒车制动噪声问题进行了深入分析和研究,利用Polytec激光测振仪捕捉采集了制动器在特定工况下产生制动噪音的振型,并利用振动形态指出可以增加质量的位置,然后利用有限元分析得出了增加质量的大小,最后利用台架和实车对最终样件进行了验证,证明了解决方案的有效性。The brake noise of disc brakes is a concern of the automotive industry and a complaint of comfort in the aftermarket.In this paper,the reversing braking noise problem of a disc brake is deeply analyzed and studied.The Polytec laser vibrometer is used to capture the vibration mode of the brake that generated under certain working conditions,and add mass according to the vibration mode and then using finite element analysis to obtain the size of the mass,and finally validating the final sample with dyno and test vehicle,which proves the effectiveness of the solution.

关 键 词：激光测振仪 有限元分析 制动噪音 

分 类 号：U463.51[机械工程—车辆工程]