Effect of Bearing Deformation on the Performance of a Magnetic Fluid-Based Infinitely Rough Short Porous Journal Bearing

摘要

An attempt has been made to investigate theoretically the performance of a transversely rough porous infinitely short journal bearing considering bearing deformation under the presence of a magnetic fluid lubricant. Christensen and Tonder's stochastic model has been used to develop the stochastic Reynolds' type equation. This associated equation is solved to obtain the pressure distribution paving the way for the calculation of the load carrying capacity. The results indicate that the roughness pattern and the height of the roughness have significant effects on the performance characteristics. It is noticed that the bearing deformation further influences the adverse effect rendered by transverse roughness. However, for a suitable choice of eccentricity, the magnetization relatively improves the performance of the bearing system for a long range of deformation, at least in the case of negatively skewed roughness. Lastly, it is revealed that higher bearing deformation hampers the positive effect of eccentricity ratio.