Studies on the influence of surface texture on the performance of hydrodynamic journal bearing using power law model
by S. Kango, Rajesh Kumar Sharma
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 4, No. 4/5/6, 2010

Abstract: The present study investigates the combined influence of surface texture, using sinusoidal, positive full and half wave roughness (transverse and longitudinal roughness) and non-Newtonian lubricants, obeying power law model on finite journal bearing. The modified Reynolds equation is solved numerically through finite difference approach for analysis of texture and non-Newtonian effects on bearing performance characteristics. It is concluded that the load carrying capacity and friction force is increased with shear thickening fluids in both bearings (smooth and rough bearings). It is also concluded that out of three roughnesses, the transverse positive full wave roughness is best for increasing the load carrying capacity and friction force, whereas the longitudinal sinusoidal roughness is best for decreasing the friction force.

Online publication date: Thu, 09-Sep-2010

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