Numerical Analysis on the Oil Film Behaviors of Connecting Rod Bearings Based on the Elastohydrodynamic Lubrication

탄성유체윤활에서 작동하는 커넥팅 로드 베어링의 윤활막 거동에 관한 수치적 연구

  • 김청균 (홍익대학교 트라이볼로지 연구센터) ;
  • 김한구 (홍익대학교 트라이볼로지 연구센터)
  • Published : 2004.07.01

Abstract

The purpose of this paper is analyzing the oil film pressure distribution and the minimum oil film thickness for a connecting rod bearing using an A VL′s EXCITE program. It is very important to understand optimized oil supplying holes and oil groove dimensions for supporting sufficiently inertia forces and gas pressures from the combustion chamber for a Diesel engine. The computed results indicate that the optimized oil groove width of a bearing and oil hole of a journal are recommended for high performance of a connecting rod bearing at the elastohydrodynamic lubrication zone. These results as design parameters are very useful data for a bearing designer as a firm reference of an automotive engine.

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References

  1. C. K. Kim, D. C. Han, 'Finite Element Analysis to Analyzing the Oil Film Pressure Distribution due to Viscosity Conditions in Engine Bearing,' J. of KSTLE, Vol.11, No.1, pp.12-19, 1995
  2. C. K. Kim, I. K. Lee, 'Studies of Oil Related Tribological Failures of Automotive Engines,' 28th Proceedings of KSTLE Conference, pp.244-251,1998
  3. B. K. Gupta, R. M. Phelan, 'The Load Capacity of Short Journal Bearing with Oscillating Effective Speed,' ASME J. of Basic Engineering, Vol.86, pp.348-354, 1964 https://doi.org/10.1115/1.3653077
  4. M. Takasaki, C. Ettles, M. McC., 'The Effect of Added Rotation on Crosshead Bearing Performance,' J. of Tribology Trans. ASME, Vol.107, No.1, pp.104-109, 1985 https://doi.org/10.1115/1.3260984
  5. M. B. Aitken, H. McCallion 'Elastohydrodynamic Lubrication of Big-end Bearings, Part 2: Ratification,' Proceedings of the Institution of Mechanical Engineers, Vol.205, No.C2, pp.107-119, 1991 https://doi.org/10.1243/PIME_PROC_1991_205_098_02
  6. EXCITEUser manual, Version 5.1,AVL, 2001
  7. Oliver Knaus, Bernhard Loibnegger, Hubert M. Herbst, Gudrun Kreuzwirth, 'Eintluss von Strukturdynamik und Elastohydrodynamischer Lagerung auf die Pleuelgestaltung,' MTZ, Jahrgang 63, pp.546-554, 8/2002