Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
권호 표지

A Study on the Elastohydrodynanic Lubrication Analysis and the Modification of the Roller Profile in the Cam-Roller of the Valve Mechanism for a Marine Diesel Engine

박용디젤기관 밸브기구용 캠-롤러 사이의 탄성유체윤활해석 및 롤러 형상 수정에 관한 연구

  • 구영필 (쌍용중공업주식회사 엔진기술연구소) ;
  • 강민호 (부산대학교 대학원 정밀기계공학과) ;
  • 이득우 (부산대학교 기계공학부) ;
  • 조용주 (부산대학교 기계공학부)
  • Published : 1999.11.01
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Abstract

In this study, a numerical procedure to analyze 3-dimensional unsteady elastohydrodynamic lubrication was developed. The procedure was applied to the actual cam and roller follower of the valve mechanism for a marine diesel engine. The pressure distribution between the cam and roller follower was calculated for the several cam rotating angles. The pressure spike is shown near the roller edge and it is getting higher as the external load is increased. The roller profile for reducing the pressure spike was suggested by the Hertzian contact analysis.

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