潤滑油の限界せん断応力が弾性流体潤滑特性に及ぼす影響

概要

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The elastohydrodynamic equation of a line contact is solved by using a finite element method for a range of Dowson's dimensionless load W=2.042×10^<-5>-1.5×10^<-4>. A lubricant model of limiting shear stress is introbuced in this calculation. The existence of the limiting shear stress greatly influence either the film thickness or the distribution of pressure, with the exception of the pressure spike. In the case of a small slip, the minimum film thickness in this calculation is almost the same as the film thickness based on a Newtonian model. The adoption of the lubricant model also has a remarkable influence on the traction force. An approximate formula, which is adequate for the estimation of the maximum coefficient of traction, is proposed based on the examination of the calculated shear stresses.
一般社団法人日本機械学会の論文
1989-08-25