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Thermo-Mechanical Contact Analysis of Car Disc Brake Squeal

Journal Article
ISSN: 1946-3995, e-ISSN: 1946-4002
Published October 12, 2008 by SAE International in United States
Thermo-Mechanical Contact Analysis of Car Disc Brake Squeal
Citation: Hassan, M., Brooks, P., and Barton, D., "Thermo-Mechanical Contact Analysis of Car Disc Brake Squeal," SAE Int. J. Passeng. Cars - Mech. Syst. 1(1):1230-1239, 2009,
Language: English


Disc brake squeal can be classified as a form of friction-induced vibration. The elimination of brake squeal noise is very important as the problem causes discomfort of the vehicle occupant as well as pedestrians. This paper presents a new methodology for predicting disc brake squeal using finite element analysis considering both thermal effects and the structural compliance of brake components. An integrated dynamic study of non-linear contact pressure analysis and a fully coupled transient thermal analysis under variation of contact algorithm are performed before executing the instability study of a typical passenger car brake system using the complex eigenvalue analysis method. Based on the results of this exercise, a parametric study on the materials of brake components is carried out to define suitable design guidelines to reduce or to eliminate squeal problems.