Influence of the Friction Block Shape and Installation Angle of High-Speed Train Brakes on Brake Noise

被引：11
|
作者：
Quan, Xin [1 ]
Mo, Jiliang [1 ]
Huang, Bo [1 ]
Tang, Bin [1 ]
Ouyang, Huajiang [2 ]
Zhou, Zhongrong [1 ]
机构：
[1] Southwest Jiaotong Univ, Dept Mech Engn, Tribol Res Inst, Chengdu 610031, Peoples R China
[2] Univ Liverpool, Dept Engn, Liverpool L69 3GH, Merseyside, England
来源：
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME | 2020年 / 142卷 / 03期
基金：
中国国家自然科学基金;
关键词：
friction block shape characteristics; brake noise; surface morphology; contact pressure; SURFACE-TOPOGRAPHY; SQUEAL PREDICTION; INDUCED VIBRATION; WEAR;
D O I：
10.1115/1.4045262
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this study, experiments are conducted to evaluate the effects of friction block shapes and installation angles on the brake noise of high-speed trains on a customized small-scale brake dynamometer. Friction blocks in three different shapes (circle, triangle, and hexagon) and triangular/hexagonal friction blocks at different installation angles are used in the tests. The results indicate that the circular and triangular blocks exhibit low sound pressure with multiple harmonics, whereas the hexagonal friction block produces the highest sound pressure with a single dominant frequency. This difference is attributed to the high contact pressure and severe wear on the surface of the hexagonal friction block. Differences in the installation angle of the triangular/hexagonal friction blocks affect wear debris behavior, distribution of contact pressure, and contact state of the friction interface, consequently influencing noise performance.
引用
收藏
页数：10
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