Analysis of externally pressurized multirecess conical hybrid journal bearing system using micropolar lubricant

Abstract

This article describes an analytical study to demonstrate the influence of micropolar lubricant on a four-pocket conical hybrid journal bearing system compensated with membrane restrictor. The modified Reynolds equation has been derived using Eringen’s theory of micropolar fluids with usual assumptions in cylindrical coordinates. The finite element modeling of the modified Reynolds equation has been made using Galerkin’s technique. The variation of bearing characteristics parameters for both Newtonian and micropolar lubricated bearings have been plotted with respect to radial load parameter for the chosen values of semi-cone angles, coupling number, characteristic length, and membrane compliance. The numerically simulated results indicate that micropolar lubricated bearing provides enhanced performance vis-à-vis Newtonian lubricated bearing.