PERFORMANCE ANALYSIS OF GREASE-LUBRICATED JOURNAL BEARINGS INCLUDING THERMAL EFFECTS

A detailed analysis of the flow characteristics and lubrication effect iveness of grease in journal bearings is presented. Based on the ideal Bingham plastic model, the appropriate governing equations are develo ped which effectively handle the formation of a floating core as well as a core which may attach itself To either the shaft or the stationar y bushing. The formulation and numerical solutions presented pertain t o three-dimensional flows in finite journal bearings. Moreover, an ext ensive amount of computational results are presented, which take therm al effects into account according to the thermohydrodynamic theory.