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Experimental Study on Disc Brake Squeal
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English
Abstract
In order to determine the mechanism of brake squeal generation, six natural squeal odes were identified and the vibrations of the rotor, backplate and lining were measured for each mode by means of accelerometers.
The results show that an important factor is the phase difference between the change in friction surface displacement and the change in lining thickness. In the two high frequency modes, it was confirmed that the exciting energy is generated by fluctuations in friction force due to fluctuations in surface pressure. And it was concluded that squeal generation is dependent on the ratio of change in frictional force rather than in the μ-v characteristics.
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Citation
Ichiba, Y. and Nagasawa, Y., "Experimental Study on Disc Brake Squeal," SAE Technical Paper 930802, 1993, https://doi.org/10.4271/930802.Also In
References
- Millner N. “An Analysis of Disc Brake Squeal” SAE Paper, 780332 1978
- Murakami H. Tuda N. Kitamura T. “A Study Concerned with a Mechanism of Disc-Brake Squeal” SAE Paper, 841233 1984
- Nishiwaki M. Harada H. Okamura H. Ikeuchi T. “Study on Disc Brake Squeal” SAE Paper, 890864 1989
- Felske A. Hoppe G. Matthai H. “Oscillations in Squealing Disc Brakes-Analysis of Vibration Modes by Holographic Interferometry” SAE Paper, 780333 1978