Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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EHL Analysis of Ball Bearing for Rough Surface With the FlowFactor

FlowFactor를 이용한 볼베어링의 탄성유체윤활해석

  • Lee, Byung-Wook (Dept. of Mechanical Engineering, Pusan National University) ;
  • Moon, Seok-Man (Dept. of Mechanical Engineering, Pusan National University) ;
  • Kim, Tae-Wan (Dept. of Mechanical Engineering, PuKyong National University) ;
  • Cho, Yong-Joo (Dept. of Mechanical Engineering, Pusan National University)
  • Received : 2011.08.20
  • Accepted : 2011.11.05
  • Published : 2011.12.31
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Abstract

The purpose of this paper is to analyze and discuss the effects of surface roughness by comparing the elastohydrodynamic lubrication(EHL) analysis of smooth surface and rough surface as the ball bearing. In order to do this, The average flow model is adapted for the interaction of the flow rheology of lubricant and surface roughness. The average Reynolds equation and the related flow factor which describes the coupled effects of surface roughness and flow rheology, the viscosity-pressure and density-pressure relations equations, the elastic deformation equation, and the force balance equation are solved simultaneously. The results show that effects of surface roughness on the film thickness and pressre distribution should be considered especially in EHL contact problems.

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References

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Cited by

  1. EHL Analysis of Ball Bearing Considering Surface Roughness vol.29, pp.4, 2013, https://doi.org/10.9725/kstle-2013.29.4.228