- 타원접촉의 탄성유체윤활 : 제2보 - 스핀운동의 영향
- ㆍ 저자명
- 박태조,Park. Tae-Jo
- ㆍ 간행물명
- 윤활학회지
- ㆍ 권/호정보
- 2007년|23권 2호|pp.49-55 (7 pages)
- ㆍ 발행정보
- 한국윤활학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
A numerical analysis of elastohydrodynamic lubrication of elliptical contacts with both rolling and spinning has been carried out. A finite difference method with non-uniform grid systems and the Newton-Raphson method are applied to solve the problems. The velocity vectors resulting from combined spinning and rolling/sliding motion lead to asymmetric pressure distributions and film shapes. Pressure distributions, film contours and variations of the minimum and central film thicknesses are compared with various spin-roll ratios. Reduction of the minimum film thickness under spinning is remarkable whereas the central film thickness is relatively less. The spin motion have large effect on variations of the minimum film thickness with load parameter which are small in pure rolling/sliding cases. Therefore present numerical scheme can be used in the analysis of general elliptical contact EHL problems and further studies are required.