Combined Effect of Piezo-Viscous Dependency and NonNewtonian Couple Stresses in Porous Squeeze-Film Circular Plate
Keywords:squeezing film, pressure dependent viscosity, non-newtonian couple stress fluid, circular plates
On the basis of Morgan and Cameron approach and the Barus experimental research, a mathematical model is considered for the combined effect of piezo-viscous dependency and non-Newtonian couple stresses on the squeeze-film characteristics of porous circular plates. An analytical solution for the mathematical model using the small perturbation technique is obtained. The results are presented graphically for selected parameter values. Results put forward to show that the effect of pressure dependent viscosity is to enhance the load carrying capacity significantly and lengthen the squeeze film time and the effect of permeability is to decrease the pressure, load carrying capacity and squeeze film time. It is seen that the present results are in good agreement with the earlier works in the limiting conditions of conventional circular bearing.