Abstract
The present study was conducted on the disc brake systems of urban railway vehicles to investigate the effects of braking temperature on squeal noise. A finite element method-based analytical model was constructed to predict the generation of squeal noise through the analysis of complex eigenvalues. The reliability of the analytical model was confirmed by verification with experimental results obtained from a test vehicle on an urban railway track in Korea. The braking temperature of the brake system was applied to the analytical model to analyze the effects of braking temperature on squeal noise. This article proposes a brake pad shape to reduce the impact of squeal noise caused by nonuniform contact between the brake disc and the brake pad due to braking temperature. The results from the present study can be used to reduce squeal noise further.
| Original language | English |
|---|---|
| Pages (from-to) | 2253-2262 |
| Number of pages | 10 |
| Journal | Journal of Mechanical Science and Technology |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2023 |
Keywords
- Brake disc
- Brake pad
- Complex eigenvalue analysis
- Squeal noise
- Urban railway vehicle