Dynamic Analysis Including Stability of Narrow Flexibly Supported Journal Bearings with Micropolar Lubricant

Abstract

The aim of the present thesis is to investigate and predict theoretically the static and dynamic characteristics including the stability of flexibly supported narrow hydrodynamic journal bearings lubricated under the micropolar lubricants. The theoretical study has been presented using the linear analysis based on the perturbation method. Parametric studies have been conducted and stability characteristics have been obtained and comparison of the results of Newtonian and Micropolar fluid using linear analysis for different parameters have been compared and presented. A modified Reynolds equation has been obtained using micropolar lubrication theory and the solution of pressure obtained from this equation is used in the governing differential equations of motion to arrive at a stability threshold.