用模态综合模型对制动器噪声进行模拟分析与抑制  

Simulation Analysis and Suppression of Brake Squeal Noise Using Synthesized Modal Model

作　　者：姚庆军 马扎根 吴昊 赵艳男 管迪华[2] 杜永昌[2] 王霄锋[2] YAO Qingjun;MA Zhagen;WU Hao;ZHAO Yannan;GUAN Dihua;DU Yongchang;WANG Xiaofeng(Technology Center of SAIC Volkswagen Automobile Co.Ltd,Shanghai 201805,China;School of Vehicle and Mobility Tsinghua University,Beijing 100084,China)

机构地区：[1]上汽大众汽车有限公司技术中心,上海201805 [2]清华大学车辆与运载学院,北京100084

出　　处：《汽车工程学报》2021年第3期221-227,共7页Chinese Journal of Automotive Engineering

基　　金：上海汽车工业发展基金会对该研究项目的大力支持

摘　　要：综述了对于制动器噪声问题能进行较为有效控制且得到应用的研究技术成果,利用在研究制动器噪声问题发生机理的基础上发展的系统模态综合模型分析方法,对一个存在低频噪声的制动器进行了分析。找出了影响噪声发生的关键构件是制动器支架,对其进行了改进设计,通过按照SAE J2521标准进行的台架试验,证明其有效性,并将原制动器按SAE J2521标准属于BBB-BB级之间的产品,提升到AAA级的顶级标准。Initially the paper summarized the technological advances in suppressing the brake NVH(noise,vibration and harshness).And the modal synthesis technique for system analysis was developed based on the mechanism of squeal noise generation.The synthesized modal model is used to analyze the brake with low frequency squealing.The key structure that primarily affects noise is the mounting bracket and the break with the modified mounting bracket was verified according to the standard SAE J2521 procedure.Finally the SAE level of the studied brake was raised from BBB-BB to AAA after modification.

关 键 词：制动器 振动噪声 模态 模态综合 

分 类 号：U463.55[机械工程—车辆工程]