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2報,く形接触面の場合

概要

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The squeezing of a lubricant between two rough surfaces having rectangular contact area is examined. Firstly, the approximate equation of squeeze flow is introduced for smooth rectangular surfaces. This approximate equation is a function only of the aspect ratio of the rectangular surface, and it agrees well with the exact calculation by the theory of Reynolds. Then, the approximate equation is extended to the case of a rough rectangular surface. The calculation of lubricant squeezing by the extended equation agrees well with the experimental results. The squeeze coefficient is the criterion for the load-carrying capacity of the contact surface due to the lubricant squeezing. This coefficient is obtained as a function of surface topography and lubricating film thickness. The representative equation of the squeeze coefficient for the rectangular surface is the same as that for the circular surface. The fundamental information is important for improving the dynamic characteristics of sliding elements.
社団法人日本機械学会の論文
1988-01-25