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Analysis of Disc Brake Squeal, 1992
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1992 by SAE International in United States
Annotation ability available
Eliminating squeal noise generated during braking is an important task for the improvement of vehicle passengers' comfort. Considerable amount of research and development works have been done on the problem to date. In this study, we focused on the analyses of friction self-excited vibration and brake part resonance during high frequency brake squeal. Friction self-excited vibration is caused by the dry friction between pads and rotor, and occurs as a function of their relative sliding velocities. Its vibration frequency can be calculated in relation to the mass and stiffness of the pad sliding surface. Frequency responses of the brake assembly were measured and the vibration modes of the pad, disc and caliper during squeal were identified through modal analysis. Further study led to the development of a computer simulation method for analyzing the vibration modes of brake parts. Analytical results obtained using the method agreed well with the corresponding experimental data. Consequently, the theory on brake squeal mechanism is clarified.
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CitationMatsui, H., Murakami, H., Nakanishi, H., and Tsuda, Y., "Analysis of Disc Brake Squeal, 1992," SAE Technical Paper 920553, 1992, https://doi.org/10.4271/920553.
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