Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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An Elastohydrodynamic Lubrication of Elliptical Contacts Part I: Direction of Lubricant Entrainment Coincident with the Major Axis of the Hertzian Contact Ellipse

타원접촉의 탄성유체윤활 제1보-윤활유의 유입방향이 Hertz 접촉타원의 장축방향인 경우

  • 박태조 (경상대학교 기계공학과, 항공기부품 기술연구센터) ;
  • 현준수 (FAG한화베어링)
  • Published : 1998.12.01
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Abstract

This paper presents a study of the elastohydrodynamic lubrication of elliptical contacts where lubricant entrainment coincides with the major axis of the Hertzian contact ellipse. A finite difference method and the Newton-Raphson method are applied to analyze the problem. Film contours and pressure distributions are compared with the results for lubricant entrainment coincides with the minor axis. Variations of the minimum and central film thicknesses with the radius ratio are also examined. The results showed that the present numerical scheme can be used generally in the analysis of the EHL of elliptical contacts where the lubricant entraining vector did not coincide with either of the principal axis of the conjunction.

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References

  1. Elastohydrodynamic Lubrication Dowson, D.;Higginson, G. R.;SI(ed)
  2. J. of Lub. Tech. v.98 Isothermal Elastohydrodynamic Lubrication of Point Contacts, Part 1: Theroretical Formulation Hamrock, B.J.;Dowson, D.
  3. J. of Lub. Tech. v.98 Part 2: Ellipticity Parameter Results Hamrock, B.J.;Dowson, D.
  4. J. of Lub. Tech. v.99 Part 3: Fully Flooded Results Hamrock, B.J.;Dowson, D.
  5. Wear v.136 A Numerical Analysis of the Elastohydrodynamic Lubrication of Elliptical Contacts Park, T. J.;Kim, K. K.
  6. 한국윤활학회지 v.12 no.3 Hamrock & Dowson의 EHL 유막두께식에 대한 평가 박태조
  7. Proc. R. Soc. Lond. A v.387 A Theoretical Analysis of the Isothermal Elastohydrodynamic Lubrication of Concentrated Contacts Chittenden, R. J.;Dowson, D.;Dunn, J. F.;Taylor, C. M.
  8. Proc. Instn. Mech. Engrs. v.200 Elastohydrodynamic Film Thickness in Concentrated Contacts Chittenden, R. J.;Dowson, D.;Taylor, C. M.
  9. Proc. of the Int. Tribology Conf. v.2 The Elastohydrodynamic Lubrication of Profiled Cylindrical Roller Park, T. J.;Kim, K. K.
  10. Wear v.223 no.1-2 Elastohydrodynamic Lubrication of a Finite Line Contact Park, T. J.;Kim, K. K.

Cited by

  1. 타원접촉의 탄성유체윤활 : 제2보 - 스핀운동의 영향 vol.23, pp.2, 1998, https://doi.org/10.9725/kstle.2007.23.2.049
  2. 구름/스핀 운동을 하는 경우의 타원접촉 EHL 유막두께 vol.24, pp.6, 1998, https://doi.org/10.9725/kstle.2008.24.6.355