| 제목 |
2자유도 모델을 이용한 디스크 브레이크의 면외 운동에 미치는 접촉강성의 영향 분석 |
| 분야 |
차량동역학 및 제어 |
| 언어 |
Korean |
| 저자 |
신기홍(안동대학교), 오재응(한양대학교), 조용구(한양대학교), 차병규(한양대학교) |
| Key Words |
Squeal noise(스퀼 소음), Stability(안정성), Limit cycle(한계 순환), Out-of-plane motion(면외 운동), Contact stiffness(접촉강성) |
| 초록 |
A two degree-of-freedom mathematical model is pres ted to investigate the friction mechanism of a disc brake system. A contact parameter is introduced to describe the coupling between the in-plane and the out-of-plane motions. The model with the contact parameter is considered der the assumption that the out-of-plane motion depends on the friction force along the in-plane motion. In order to describe the relationship between the friction force and the out-of plane motion, the dynamic friction coefficient is considered as a function of both relative velocity and normal force. Using this friction law, a contact stiffness matrix along the normal direction can be obtained. The out-of-plane motion is then investigated by both the stability analysis and the numerical analysis for various parametric conditions. The results show that the stiffness parameters of the pad and the disc must be controlled at the same time. Also, the numerical analysis shows the existence of limit cycle can ed by the effect of intermittent contact stiffness.{{br}} |
| 원문(PDF) |
다운로드
|
