Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Pin-Boss Stress Analysis Coupled with Oil Film Pressure of a Diesel Engine Piston Receiving 200 bar Combustion Pressure

200 bar 연소압을 받는 디젤엔진 피스톤 핀-보스의 유막 압력을 고려한 응력해석

  • Chun, Sang-Myung (Dept. of Automotive Engineering, Hoseo University) ;
  • Lee, J.S. (R&D Center, Dong Yang Piston Co., LTD.) ;
  • Joo, D.H. (R&D Center, Dong Yang Piston Co., LTD.) ;
  • Park, S.J. (R&D Center, Dong Yang Piston Co., LTD.)
  • Published : 2008.08.31
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Abstract

In this study, the pressure distributions on the oil film of piston pin bearings are found by two-dimensional lubrication analysis in order to help the optimum design of the bearings of piston pin. The lubrication analysis is carried out together with an equation related with the oil pressure-viscosity index. The oil film pressure distribution is used as an input data for pressure boundary conditions at the piston pin-boss surface. Finally, the piston pin-boss stress distribution coupled with the thermal stress is calculated, and then compared with the results of the stress analysis which is not counted with the oil film pressure boundary condition.

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References

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