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A Study on Low Frequency Drum Brake Squeal
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 10, 2004 by SAE International in United States
Annotation ability available
Low frequency drum brake squeal is often very intense and can cause high levels of customer complaints. During a noise event, vehicle framework and suspension components are excited by the brake system and result in a violent event that can be heard and felt during a brake application. This paper illustrates the experimental and analytical studies on a low frequency drum brake squeal problem that caused high warranty cost. First the environmental condition was identified and noise was reproduced. Vehicle tests were performed and operating deflection shapes were acquired. The sensitivity of the lining material to different environmental conditions was investigated. With the use of complex eigenvalue method, models were constructed to obtain further understanding of the phenomena. Finally, the squeal mechanism of a drum brake system is discussed and various solution techniques for low frequency drum brake noise are evaluated.
CitationKung, S., Stelzer, G., and Smith, K., "A Study on Low Frequency Drum Brake Squeal," SAE Technical Paper 2004-01-2787, 2004, https://doi.org/10.4271/2004-01-2787.
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