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Some Drum Brake Squeal Mechanisms
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English
Abstract
The analysis of a two-dimensional drum brake shows that there are four mechanisms present in generating drum brake squeal. The analysis shows that the unstable modes from the mechanisms contain waves. These waves move in different directions. In a drum brake, all four mechanisms are present and four waves travelling in different directions are superposed. If waves with different wave directions are superposed, the solution is forced towards a standing wave, which is always stable. Every step towards a standing wave is a step towards stability. If the waves could form a standing wave, the noise would be eliminated at the source.
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Citation
Hultén, J., "Some Drum Brake Squeal Mechanisms," SAE Technical Paper 951280, 1995, https://doi.org/10.4271/951280.Also In
References
- Millner, N. “A Theory of Drum Brake Squeal” Braking of Road Vehicles Loughborough, England 177 185 365 366 I.Mech.E. paper Mar. 1976
- Millner, N. A Study of the Squeal of Drum Brakes. University of Leeds Leeds, England 1976
- Okamura, H. Nishiwaki, M. “A Study on Brake Noise - Drum Brake Squeal” JSME International Journal Series III 32 206 214 June 1989
- Chen, S. Guan, D. “Theoretical and Experimental Study on Drum Brake Squeal” Sixth International Pacific Conference and Exposition on Automotive Engineering Seoul, Korea 371 375 SAE paper 91 24 97 Nov. 1991
- Zhu, X. Guan, D. “The Experimental and Simulational Analysis on Drum Brake Squeal by Structurally Closed-Loop Coupling Model” Seventh International Pacific Conference and Exposition on Automotive Engineering Phoenix, Arizona SAE paper 93 18 79 Nov. 1993
- Hultén, J. “Drum Brake Squeal - A Self-Exciting Mechanism with Constant Friction” 1993 SAE Truck and Bus Meeting Detroit, Michigan SAE paper 93 29 65 Nov. 1993
- Lang, A.M. An Investigation into Heavy Vehicle Drum Brake Squeal Loughborough University of Technology Loughborough, England May 1994
- Hultén, J. Some Mechanisms Generating Drum Brake Squeal Chalmers University of Technology Göteborg, Sweden Dec. 1994
- Golub, G.H. Van Loan, C.F. Matrix Computations London North Oxford Academic Publishers 1986