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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kim, C. Zhou, K. |
| Copyright Year | 2016 |
| Abstract | The squeal noise occurring from the disc brakes of passenger cars has been analyzed by using the complex eigenvalue method numerically. The contact between a disc and two pads was analytically modeled as many linear springs and dampers in an effort to develop the improved equation of motion derived on the basis of Lagrange’s equation and the assumed mode method. The finite element modal analysis results for disc brake components constitute an eigenvalue matrix in the analytical equation of motion. The complex eigenvalue analyses based on the equations of motion are able to examine the dynamic instability of a brake system, which is an onset of squeal, by considering the disc rotational effect. Numerical analyses showed that the modes unstable in an undamped analysis became stable in a damped case, which illustrates the important effect of damping on the squeal instability in a brake squeal simulation. Then several modified brake models were suggested and investigated how effectively they suppressed the occurrence of squeal noise. The brake parts such as a pad chamfer and a disc vane were modified and the influence of pad chamfer and vane shapes on squeal occurrence was proved to be significant. The numerical results showed that proper structural modification of a disc brake system can suppress the brake squeal to some extent. |
| Starting Page | 213 |
| Ending Page | 223 |
| Page Count | 11 |
| File Format | |
| ISSN | 12299138 |
| Journal | International Journal of Automotive Technology |
| Volume Number | 17 |
| Issue Number | 2 |
| e-ISSN | 19763832 |
| Language | English |
| Publisher | The Korean Society of Automotive Engineers |
| Publisher Date | 2016-04-09 |
| Publisher Place | Seoul |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Squeal Complex eigenvalue analysis Disc brake Pad and vane Damping Finite elements Automotive Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Automotive Engineering |
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