Friction Force Measurement of Elastohydrodynamic Lubrication with Viscosity Index Improvers

탄성유체윤활 영역에서 점도지수 향상제의 첨가량에 따른 마찰력 측정연구

  • Kong, Hyun-Sang (School of Mechanical and Automotive Engineering Kookmin University) ;
  • Jang, Si-Youl (School of Mechanical and Automotive Engineering Kookmin University) ;
  • Park, Kyoung-Kuhn (School of Mechanical and Automotive Engineering Kookmin University)
  • Published : 2002.05.16

Abstract

Most studies of elsatohydrodynamic lubrication are oriented only to the measurement of film thickness itself with optical interferometer. In order to exactly investigate the characteristics of a certain lubricant, it is also important to get the information of traction force as well. In this work, we developed the device for measuring friction force of ehl contact condition together with the film thickness. To verify the validity of the measuring system, the friction force and film thickness under ehl condition are measured with the variation of additive ratios of viscosity index Improvers.

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