Influence of different relative position distributions on the stick-slip Vibration of a two friction blocks braking system

被引：0

作者：

Liu, Cuiping ^{[1
]}

Zhu, Youguang ^{[1
]}

Xiang, Zaiyu ^{[1
]}

Ouyang, Huajiang ^{[1
]}

Mo, Jiliang ^{[1
]}

机构：

[1] School of Mechanical Engineering, Southwest Jiaotong University, Chengdu

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 22期

关键词：

contaet stress; relative position; stick-slip Vibration; two friction blocks; wear;

D O I：

10.13465/j.cnki.jvs.2024.22.024

中图分类号：

学科分类号：

摘要：

The influence of relative positions of two cireular frietion bloeks on the tribological behaviour and dynamie characteristics of a simplified and customized experimental braking System with a pads-on-dise eonfiguration was studied. The contaet stress distribution characteristics of the friction blocks were analyzed by using the finite element method, and the relationship between different relative positions and the interface contaet behaviour, friction and wear, and stick-slip Vibration was discussed. The results of the comprehensive test and Simulation show that different relative positions of the two friction blocks significantly affect their interface contaet pressure distribution and the wear characteristics, resulting in different forms of stick-slip Vibration. It is found that the surface wear of the two friction blocks oriented along the disc radius is slight, the contaet pressure is relatively evenly distributed and the stick-slip Vibration intensity is low. It is also found that a sensible arrangement of friction blocks can effectively suppress the stick-slip Vibration at the friction interface, mitigate the wear of friction blocks, reduce the oscillation of System components, and improve the stability of the friction System. The work contributes to an improved design of brakes for automobiles and trains (in particular, high-speed trains). © 2024 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：217 / 224and269

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