Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Numerical Analysis of Non-Newtonian Behavior in the Fluid Film Layer of Bearing Lubrication

베어링 윤활 필름층의 비뉴튼성 거동에 대한 수치적 해석

  • 김준현 (국민대학교 기계 자동차공학부) ;
  • 김주현 (국민대학교 기계 자동차공학부)
  • Published : 2000.10.01
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Abstract

The study reported in this paper deals with the development for parametric investigation of the influence of the rheological properties of the lubricant in the thermohydrodynamic (THD) film conditions which occur in slider and journal bearings. A parametric investigation based on a Bingham model with a shear yield stress which best fit the experimental pressure is performed for predicting the thickness of the shear Bone in lubricating films with fixed geometry between the stationary and moving surfaces. The results suggest that the shear yield stress for the lubricating film is proportional to the pressure developed in the film within the range of the investigated cases and the shear zone thickness which is of the same order of magnitude as that obtained by the empirical formula is significantly smaller than the fluid film thickness in the lubrication zone.

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References

  1. Phil. Trans. Roy. Soc. v.A177 On the Theory of Lubrication and Its Application to Mr. Beauchamp Tower's Experiments, Including an Experimental Determination of the Viscosity of Olive Oil Reynolds, O.
  2. J. Lubr. Tech. v.95 Thermohydrodynamic Phenomena in Fluid Film Lubrication Seireg, A.;Ezzat, H.
  3. J. Trib. v.115 The Rheology of Lubricants at High Shear Rates Feng, R.;Rames, K. T.
  4. J. Trib. v.109 The Reynolds Centenial: A Brief History of the Theory of Hydrodynamic Lubrication Pinkus, O.
  5. J. Trib. v.114 The High Pressure, High Shear Stress Rheology of Liquid Lubricants Bair, S.;Winer, W. O.
  6. J. Trib. v.116 Adiabatic Shear Localization in Liquid Lubrication Under Pressure Bair, S.
  7. J. Trob. v.117 Empirical Prediction of the Shear Layer Thickness in Lubricating Films Wang, N. Z.;Seireg, A. A.
  8. J. Rheol. v.35 Hydrodynamic Lubrication Theory for the Bingham Plastic Model Tichy, J. A.
  9. Engineering Rheology Tanner, R. I.
  10. J. Trib. v.118 The Behavior of an Elastohydrodynamic Lubricant at Moderate Pressures and High Shear Rates Zhang, Y.;Ramesh, K. T.