組さのある二面にはさまれた潤滑油のスクイーズ現象について : 第1報,円形接触面の場合

概要

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The clarification of the squeezing mechanism of a lubricant which flows between rough surfaces is quite important for the improvement of the dynamic characteristics of sliding elements, and for the elimination of stick-slip vibration. In the present study, the surface roughness effect on the squeezing mechanism is examined experimentally using rough surfaces of circular contact area. The distance between two surfaces, that is, the lubricant film thickness treated in this study, is widely distributed. When the distance becomes small and the surface roughness effect cannot be neglected, micro-squeezing of the lubricant may occur. It is seen in the experiment that the effect of surface roughness on lubricant squeezing is remarkable. The squeezing of the lubricant is simulated by assuming a surface asperity model and by extending the theory of Reynolds. The simulated result is quantitatively agreeable with the experimental results. The load-carrying capacity of the circular contact surface is obtained as the function of surface topography and the initial film thickness.
社団法人日本機械学会の論文
1988-01-25