多孔質ゴムと剛体面間に形成されるスクイズフィルムに関する研究　第２報　　多孔質体の透過率およびすきま内の流体慣性力の影響

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  • A Study on Squeeze Films between Porous Rubber Surface and Rigid Surface. 2nd Report. Effects of Permeability of Porous Matrix and Fluid Inertia Force in Squeeze Film.
  • タコウシツ ゴム ト ゴウタイメン カン ニ ケイセイ サレル スクイズ フィルム ニ カンスル ケンキュウ ダイ2ホウ タコウシツタイ ノ トウカリツ オヨビ スキマナイ ノ リュウタイ カンセイリョク ノ エイキョウ

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A theoretical study is carried out to investigate the squeeze film phenomena between a cylindrical porous rubber block and a rigid plate. The porous rubber block is stationary, while the rigid plate is oscillated sinusoidally in the direction perpendicular to its surface or dropped on the porous rubber surface, subjected to its own weight and the squeeze film force. The deformation of the porous rubber block is evaluated with an axisymmetric continuum model based on a three element visco elastic model. The approximate solutions for the film pressure including the fluid inertia effect are obtained using the perturbation method. for each type of rigid plate motion, the numerical results show various effects of the permeability of porous rubber block and the fluid inertia force on squeeze film characteristics such as the film pressure, force, thickness and the leakage flow from the squeeze film.

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