汽车用4种结构盘式制动器的模态分析  

Modal analysis of four kinds of disc brakes used for automotive

作　　者：王为彬 

机构地区：[1]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《矿山机械》2015年第9期33-36,共4页Mining & Processing Equipment

基　　金：山东省教育厅科技计划项目(J14LB13);山东科技大学研究生科技创新积极项目(YC140104);矿山灾害预防控制省部共建国家重点实验室培育基地开放课题基金(MDPC2013ZR01)

摘　　要：汽车用盘式制动器在制动过程中有时会出现振动和尖叫,为了准确把握其振动特性,应用有限元分析法对汽车用4种不同结构的盘式制动器进行了模态分析,得到了这4种制动盘和摩擦片的前10阶固有频率与振型。结果表明,槽式、孔式、槽孔式制动盘的固有频率比传统的实心制动盘均有一定程度的提高,孔式制动盘的固有频率增加的幅度最大。制动器各部件的耦合振动为低频尖叫的主要原因,与实心制动盘相比,槽式、孔式与槽孔式制动盘与摩擦片固有频率均有一定程度的增加,可降低摩擦片与制动盘的耦合振动。The disc brake in the automotive often produces vibration and squeal in the process of braking. In order to accurately grasp its vibration characteristics, the finite element method was applied to conduct the modal analysis of four kinds of various-structure disc brakes used for automotive, and natural frequency and vibration mode of preceding ten orders of the four kinds of disc and the friction plate were obtained. The results showed： the natural frequency of the grooved disc, the holed disc and the grooved-holed disc were all higher than that of the solid disc, and the natural frequency of the holed disc enhanced the most significantly. The coupled vibration among parts of the brake was the main reason of low-frequency squeal. Compared with the solid disc, the natural frequency of the grooved, the holed type, the grooved-holed disc was further away from that of the friction plate, thus the coupled vibration between the friction plate and the disc reduced.

关 键 词：盘式制动器 有限元方法 模态分析 耦合振动 制动尖叫 

分 类 号：U463.512[机械工程—车辆工程]