Abstract：This paper is focused on investigating the brake squeal problem of a disc brake at 2000 Hz. To this end, a FEA model is established and modified according to the experimental modal. The technique of complex eigenvalue analysis is adopted to retrieve the complex eigenvalues and mode shapes. The unstable mode shapes corresponding to the squeal frequency can be confirmed according to the ODS test. Afterwards,the components contribution of this unstable mode is quantified by means of correlation analysis. The component which has the largest contribution to the unstable mode will be optimized in terms of geometry to improve the brake squeal problem. Finally, this feasibility of this approach can be confirmed through the comparison with bench test of SAE J2521.
詹斌，孙涛，沈炎武，余家皓，陶政，胡浩炬. 基于复特征值分析的某盘式制动器制动尖叫问题改进[J]. 振动与冲击, 2021, 40(5): 108-112.
ZHAN Bin, SUN Tao, SHEN Yanwu, YU Jiahao， TAO Zheng, HU Haoju. Improvement of brake squeal of a disc brake based on complex eigenvalue analysis. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(5): 108-112.
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