Squeeze film lubrication between circular stepped plates of couple stress fluids

Magneto-Hydrodynamic Couplestress Squeeze Film Lubrication of Circular Stepped Plates

“…It is observed that the effect of magnetic field is to increase the load carrying capacity as compared to non-magnetic case (M 0 → 0). The dotted curve in the graph (M 0 = 0) represents to the non-magnetic case studied by Naduvinamani and Siddanagouda [9]. Since the applied magnetic field reduces the lubricant velocity, a large amount of pressure is generated which causes an increase in the load carrying capacity.…”

Effect of couple stresses on static and dynamic characteristics of MHD wide tapered land slider bearing

“…The Stokes [1] couple stress theory is the simplest generalization of classical theory that allows for polar effects such as the presence of couple stresses and body couples. This theory has been used by several investigators to study the effect of couple stresses such as composite inclined step bearing by Sinha and Singh [2], slider bearing by Ramanaiah and Sarkar [3], circular stepped plates by Naduvinamani and Siddangouda [4], porous stepped composite bearing by Apparao et al [5], porous parallel stepped plates by Biradar [6] and rough parallel plates by Naduvinamani et al [7]. They concluded that, the use of a couple stress fluid for lubrication increases the load carrying capacity and reduces the coefficient of friction as compared with the corresponding Newtonian case.…”

Effect of Magnetohydrodynamic Couple Stresses on Dynamic Characteristics of Exponential Slider Bearing

“…The Stokes theory allows for polar effects such as the presence of couple stresses, body couples and non-symmetric stress tensors. On the basis of Stokes theory, many researchers studied effect of couple stress on bearing characteristics such as slider bearing by Ramanaiah and Sarkar [8], short journal bearing by Ayyappa et al [9], circular stepped plates by Naduvinamani and Siddangouda [10] and long partial journal bearing by Lin [11]. According to the results obtained, the use of non-Newtonian fluid enhances the bearing performance RESEARCH characteristics.…”