摩擦热对界面磨损及制动系统稳定性的影响

doi:10.16183/j.cnki.jsjtu.2018.05.019

摘要/Abstract

摘要： 基于盘式车辆制动系统的工作原理搭建了车辆制动系统缩比试验台，在所搭建的制动系统试验台上进行了制动摩擦试验，并利用有限元分析软件Abaqus求解器Explicit模拟试验过程，以探讨摩擦热效应、界面磨损及系统不稳定振动三者之间的关系.结果表明：制动盘与制动片在制动摩擦过程中产生了间歇性高频振动及尖叫噪声；制动片表面的进、出摩擦区域均出现了应力集中现象，并导致高温集中，从而加剧了界面的局部磨损；当模拟过程考虑摩擦热效应时，制动系统的不稳定振动程度有所降低.

关键词: 车辆, 盘式制动系统, 摩擦热, 振动, 磨损行为, 有限元分析

Abstract: Based on the working principle of vehicle disc brake system, a reduced disc brake dynamometer test bench was developed. An experimental study of brake vibration and noise was performed in this self-developed disc brake dynamometer. Moreover, a numerical analysis was performed by using Abaqus/Explicit to simulate the experimental process and investigate the relationship among the friction heat, interfacial wear and system stability. Both the experimental and numerical results showed that the friction system of brake pad on disc generated intermittent high frequency vibration and squeal noise during the friction process. The contact pressure of brake pad concentrated on the leading and trailing areas of the pad surface, which resulted in the high temperature and consequently local severe wear of these areas. Moreover, the vibration amplitude for the finite element model with thermal effect was lower compared to the model without thermal effect.

Key words: vehicle, disc brake system, friction heat, vibration, wear behavior, finite element analysis

中图分类号:

U 463.51

莫继良，王东伟，李建熹，李贞，朱旻昊，周仲荣. 摩擦热对界面磨损及制动系统稳定性的影响[J]. 上海交通大学学报（自然版）, 2018, 52(5): 624-630.

MO Jiliang,WANG Dongwei,LI Jianxi,LI Zhen,ZHU Minhao,ZHOU Zhongrong. Effect of Friction Heat on Interfacial Wear and Brake System Stability[J]. Journal of Shanghai Jiaotong University, 2018, 52(5): 624-630.

参考文献

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