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Influence of Material-Dependent Damping on Brake Squeal in a Specific Disc Brake System
| Content Provider | MDPI |
|---|---|
| Author | Juraj, Úradníček Michal, Bachratý Gašparovič, L’Uboš Musil, Miloš |
| Copyright Year | 2021 |
| Description | The connection of two phenomena, nonconservative friction forces and dissipation-induced instability, can lead to many interesting engineering problems. We study the general material-dependent damping influence on the dynamic instability of disc brake systems leading to brake squeal. The effect of general damping is demonstrated on minimal and complex models of a disc brake. Experimental analyses through the frequency response function (FRF) show different damping of the brake system coalescent modes, indicating possible dissipation-induced instability. A complex system including material-dependent damping is defined in commercial finite element (FE) software. A FE model validated by experimental data on the brake-disc test bench is used to compute the influence of a pad and disc damping variations on the system stability using complexe igenvalue analysis (CEVA). Numerical analyses show a significant sensitivity of the experimentally verified unstable mode of the system to the ratio of the damping between the disc and the friction material components. |
| Starting Page | 2625 |
| e-ISSN | 20763417 |
| DOI | 10.3390/app11062625 |
| Journal | Applied Sciences |
| Issue Number | 6 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-03-16 |
| Access Restriction | Open |
| Subject Keyword | Applied Sciences Aerospace Engineering Mechanical Engineering Brake Squeal Dissipation-induced Instability Nonproportional Damping Nonconservative System Complex Eigenvalue Analysis |
| Content Type | Text |
| Resource Type | Article |
