ROUGH POROUS CIRCULAR PLATES LUBRICATED WITH COUPLE STRESS FLUID AND PRESSURE DEPENDENT VISCOSITY

ROUGH POROUS CIRCULAR PLATES LUBRICATED WITH COUPLE STRESS FLUID AND PRESSURE DEPENDENT VISCOSITY

K. R. Vasanth, B. N. Hanumagowda

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Abstract

In this paper, the e ect of PDV on the couple stress squeeze  lm lubrica- tion between rough porous circular plates is presented. Keeping the base of Christensen's stochastic theory, modi ed Reynolds equation is derived. Fluid  lm pressure, squeeze  lm time and load carrying capacity are solved using standard perturbation technique. The results are presented graphically for selected physical parameters and found that the squeeze e ect is depleted in a porous bearing compared to its non-porous and increasing permeability has an adverse e ect on the pressure, load carrying capacity and time of approach.

Keywords

couple stress, porous, squeeze  lm, pressure dependent viscosity.