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Automotive Brake Squeal Analysis Using a Complex Modes Approach
A methodology to study friction-induced squeal in a com-plete automotive disc brake assembly is presented. The analysis process uses a nonlinear static simulation se-quence followed by a complex eigenvalue extraction to determine the dynamic instabilities that are manifested as unwanted noise. The effects of assembly loads; nonuni-form contact pressure between the brake linings and disc; velocity-, temperature-, and pressure-dependent friction coefficients; friction-induced damping; and lining wear can be included. The methodology is demonstrated with a representative disc brake assembly. Good correlation be-tween the analysis results and available experimental data is achieved.
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Automotive-SIMULIA-Tech-Brief-05-Automotive-Brake-Squeal-Analysis-Full.pdf | 857.3 KB |
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