A Comparison of Porous Structures on the Performance of a Magnetic Fluid Based Rough Short Bearing
Journal Title: Tribology in Industry - Year 2013, Vol 35, Issue 3
Abstract
Efforts have been made to study and analyze the comparison of various porous structures on the performance of a magnetic fluid based transversely rough short bearing. The globular sphere model of Kozeny-Carman and Irmay’s capillary fissures model have been subjected to investigations. The transverse surface roughness of the bearing surfaces has been characterized by a stochastic random variable with non zero mean, variance and skewness. The stochastically averaged Reynolds type equation has been solved under suitable boundary conditions to obtain the pressure distribution in turn which gives the expression for the load carrying capacity. It is found that the magnetization affects the bearing system positively while the bearing suffers owing to transverse roughness. This adverse effect is relatively less in the case of Kozeny-Carman model. The negatively skewed roughness induces an increase in load carrying capacity which can be channelized to compensate the adverse effect of porosity, at least in the case of Kozeny-Carman model. This compensation in the case of Irmay’s model is relatively less. The effect of magnetization responds more in the case of Kozeny-Carman model as compared to Irmay’s model.
Authors and Affiliations
J. R. Patel , G. M. Deheri
Keywords
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