Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Micro-EHL Analysis of a Ball Joint Contact with Surface Roughness

표면 거칠기를 고려한 볼 조인트 접촉의 미세 탄성유체윤활 해석

  • 김태종 (부산대학교 기계공학부, 기계기술연구소)
  • Published : 2003.06.01
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Abstract

The effect of surface texture on elastohydrodynamic lubrication (EHL) point contact of a ball Joint mechanism in small reciprocating compressors is studied numerically by using multigrid method. Pressure and film thickness profiles have been calculated for surface roughness with waviness of different orientations and transverse ridge and dent at minimum and maximum Hoes M parameter conditions. The influence of the amplitude and the wavelength of the surface roughness was also studied. Results show that the oblique waviness with orientation angle of 30$^{\circ}$generates the smallest minimum film thickness as compared with those of longitudinal, transverse, and other oblique roughness. The influence of transverse waviness on the minimum film thickness is smaller than for the longitudinal waviness case.

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References

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