Mathematical Study of Various Problems on Bearing Lubrication

Abstract

Normally the bearing lubrication involves the study of kinetics under various forces like inertial, viscous, body, pressure, load etc. But the fluid used in bearing is also subjected to magnetic force over period of time due to excessive use as well change in the property of fluid due to colloidal natures. The part of influence under the study is the present research work. newlineResearch work theoretically discusses about the inclined slider bearing problem with porous layer (plates or matrix) attached to both slider as well as stator including effects of slip and squeeze velocity. General Reynolds s equation which is useful for calculating load capacity is obtained. The load capacity is calculated for isotropic case for various porosities of the upper and lower porous matrix. Various sizes of the porous matrix at both the ends are also discussed for the possible optimization of bearing performance. From the results, it is conclude that better load capacity is obtained when the thicknesses of both the porous plates are small and porosity is less. It is concluded from results that for smaller thickness of the porous layer and lesser porosity the load capacity increased 1.5%. newlineIn general, ferrofluid lubrication equation for non-isotropic permeable porous squeeze film bearing with slip velocity from momentum and continuity equations, are presented for various special cases newline