| 제목 |
디스크 브레이크에서 접촉 마찰 진동이 열섬에 미치는 영향 연구 |
| 분야 |
진동ㆍ소음 |
| 언어 |
Korean |
| 저자 |
조호준(인하대학교), 조종두(인하대학교), 김명구(인하대학교) |
| Key Words |
Hot spot phenomenon(열섬 현상), Judder vibration(저더 진동), Frequency analysis(주파수 분석), Thermal deformation(열적 변형), Mode shape(모드 형상), Finite element analysis(유한요소해석) |
| 초록 |
Hot spot phenomenon that occurs, during judder vibration, is locally concentrated heat due to friction between brake disk and pad. It is important to understand the reason behind hot spot phenomenon, for reduction of judder vibration. In this experimental study, experiments were performed in accordance with rotation speed of brake disk, pressure of master cylinder and pad length for achieving different aspects of hot spot phenomenon. Temperature distribution of hot spot was obtained by using the infrared camera. As the hot spot occurred, vibration was measured and frequency analysis was performed. Finite element analysis of thermal deformation of disk was performed by using temperature distribution that was achieved by experimental results. And mode shapes of disk was analyzed by finite element analysis and compared with experimental results. It was observed that the excitation frequency band of frictional contact and frictional force mainly affects the hot spot phenomenon. |
| 원문(PDF) |
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