- 축방향 프로파일 형태에 따른 롤러의 탄성유체윤활 연구
- ㆍ 저자명
- 장시열,김완두,김민철,Jang. Si-Youl,Kim. Wan-Doo,Kim. Min-Chul
- ㆍ 간행물명
- 윤활학회지
- ㆍ 권/호정보
- 2007년|23권 5호|pp.187-194 (8 pages)
- ㆍ 발행정보
- 한국윤활학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The profile of the roller in the axial direction is the main design factor in order to increase endurance life against the contact fatigue due to the stress concentration along the edge of the roller. Even under the elas-tohydrodynamic lubrication (ehl) conditions, the stress concentration along the edge of the roller greatly worsens the fatigue life both for the roller and contacting body. In this study, roller contacts of finite axial length are studied for the film thickness and pressure of ehl. For the real contact behaviors under the ehl conditions, multigrid and multi-level method is applied so that much higher loading conditions can be investigated. Several axial profiles of roller are investigated to verify how both ehl film and pressure are generated and some of them are recommended for the ehl contact condition.