Improvement of brake squeal of a disc brake based on complex eigenvalue analysis

被引：0
|
作者：
Zhan B. [1 ]
Sun T. [1 ]
Shen Y. [1 ]
Yu J. [1 ]
Tao Z. [1 ]
Hu H. [1 ]
机构：
[1] Automotive Engineering Institute, Guangzhou Automobile Group Co., Ltd., Guangzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2021年 / 40卷 / 05期
关键词：
Brake squeal; Complex eigenvalues analysis; Disc brake; Operational deflection shape (ODS); Subcomponent contribution;
D O I：
10.13465/j.cnki.jvs.2021.05.014
中图分类号：
学科分类号：
摘要：
Here, the problem of disc brake of a certain type car with 2 000 Hz brake squeal was taken as the research object. The finite element model of the brake system was established. This model was modified with the experimental modal analysis. Firstly, complex eigenvalues and vibration modal shapes of the system were obtained by using the complex eigenvalue analysis technique. The unstable mode corresponding to brake squeal frequency was determined with ODS testing. Then, aiming at this unstable mode, contributions of brake parts to it were quantified with correlation analysis, and the brake squeal was improved by optimizing the geometric structure of the part with the maximum contribution. Finally, the feasibility of the proposed method was verified through SAE J2521 bench tests. © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：108 / 112and135
相关论文
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