The Christensen’s stochastic theory of hydrodynamic lubrication of rough surfaces is used to study the effects of surface roughness on the response of the squeeze film between rectangular plates when one plate has a porous facing. An exact solution, valid for arbitrary wall thickness, is obtained for the film pressure and pressure in the bearing material. A comparison is made with an earlier approximate analysis, applicable to thin porous walls to determine the range of influencing parameters for which the approximate solution is acceptable.

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