한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2006년도 춘계학술대회논문집
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- Pages.213-218
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- 2006
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- 1598-2548(pISSN)
디스크 브레이크에서 열섬 현상이 발생되는 원인과 저더 진동에 미치는 영향
The Origin and Effect of Hot Spot Phenomena on Judder Vibration in Automotive Disk Brake
- 발행 : 2006.05.01
초록
Hot spot phenomenon is caused by non-uniform contact area between brake pad and disk frequent braking. Brake disk deformed by locally concentrated heat increases magnitude of frictional vibration. And this deformation can highly influence the judder vibration. In this experimental study, vibration and hot spot was measured in accordance with rotation of disk and pressure of master cylinder for finding the factors that causes hot spot phenomena. For comparing hot spot aspects with mode shapes of disk, mode shapes were measured by conducting modal test, and analyzed by using finite element analysis. Relation between hot spot phenomenon, and mode shape, pressure of master cylinder and rotation speed of disk respectively, was achieved by hot spot measurement and frequency analysis.