基于复特征值法的闸瓦参数对制动尖叫噪声影响的分析  

Study of Brake Shoes Parameters on Brake Squeal Propensity Based on Complex Eigenvalue Method

作　　者：胡艳[1] 黄盼盼 陈光雄[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031 [2]济南轨道交通装备有限责任公司,山东济南250022

出　　处：《机车电传动》2015年第4期23-25,37,共4页Electric Drive for Locomotives

基　　金：教育部创新团队发展计划项目(IRT1178)

摘　　要：利用ABAQUS建立了踏面基础制动装置的有限元模型,运用有限元法预测制动尖叫噪声的发生趋势。通过改变摩擦系数、闸瓦摩擦体和瓦背的杨氏模量来分析其对制动尖叫噪声发生趋势的影响。研究表明:摩擦系数对制动尖叫噪声有重要影响,可通过降低摩擦体与踏面间的摩擦系数来减少制动尖叫噪声;为抑制制动尖叫噪声产生,在不影响制动性能的前提下,闸瓦摩擦体可选用杨氏模量较大的材料,闸瓦瓦背可选用杨氏模量较小的材料。A finite element model of a pad-wheel brake device was established using ABAQUS to predict the brake squeal noise. The influence of friction coefficient between the friction body and the tread, Young＇s modulus of the friction body and the back plate on the brake squeal noise are studied. Results show that the friction coefficient had a significant influence on squeal noise, reducing the friction coefficient could suppress the occurrence of the brake squeal noise; and under the premise of without influencing on the braking performance, increasing the Young＇s modulus of the friction body or decreasing the Young＇s modulus of the back plate appropriately could suppress the occurrence of the brake noise.

关 键 词：复特征值 尖叫噪声 模态耦合 制动 摩擦 

分 类 号：U260.351[机械工程—车辆工程] U270.16[交通运输工程—载运工具运用工程]