Tribology and Lubricants

  • 제12권3호
  • /
  • Pages.63-71
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  • 1996
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  • 2713-8011(pISSN)
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  • 2713-802X(eISSN)
한국트라이볼로지학회 (Korean Tribology Society)
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커넥팅 로드 베어링의 EHL에 관한 수치해석

A Numerical Analysis of the Elastohydrodynamic Lubrication of Connecting Rod Bearings

  • 김병직 (한국과학기술연구원 기계공학과) ;
  • 김경웅 (한국과학기술연구원 기계공학과)
  • 발행 : 1996.09.01
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초록

The connecting rod bearing, which is subjected to periodical dynamic loading, is an impoRant component of the reciprocating engine. In the operation of this bearing, significant parameters are the oil film thickness and the film pressure. Peak film pressures of 20-30 MPa are not uncommon. So the elastic deformation of the bearing housing can have a significant effect on the bearing performance. In this study, a numerical analysis of connecting rod bearing is investigated. Elastic deformation of the bearing housing is considered in the analysis. Separate hydrodynamic and structural analysis are coupled through a direct iterative process. It is shown that as the result of the elastic deformation of the bearing housing, the eccentricity ratio is increased, and the minimum value of the minimum film thickness and the maximum value of the maximum film pressure are decreased. The variations of rotational speed and cylinder pressure affect the minimum film thickness and the maximum film pressure variations of the connecting rod bearing.

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참고문헌

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  11. Finite Element Methods in Mechanics Kikuchi, N.