Behaviour of hydrodynamic journal bearing under the combined influence of textured surface and Non-Newtonian Rabinowitsch fluid model

In the present study, static characteristics of hydrodynamic circular journal bearings finite length are highlighted, using combined influences textured surface and non-Newtonian lubricants behavior, obeying to Rabinowitsch fluid model. The associated nonlinear Rabinowitsch-Reynolds equation has been discretized differences scheme solved by mean Elrod’s algorithm taking into account presence cylindrical textures on full/optimum bearing surface. Following absence or obtained results in good agreement with reference ones. lubrication performances computed for various parameters such as location; eccentricity ratio rheological coeffcient. suggest that texturing bearing’s convergent zone enhances significantly load carrying capacity reduces friction coeffcient, whereas full may leads bad performances. It is also noticed pseudoplastic lubricant coeffcient decreases (load pressure) compared Newtonian cases. Considering optimal arrangement contact surface, a significant improvement terms can be achieved, especially at low pseudoplasticity effect.