Steady State Characteristics of Finite Hydrodynamic Porous Oil Journal Bearing Under Turbulent Regime

Abstract

Abstract:In this paper theoretical investigation of steady state characteristics of finite hydrodynamic porous oil journal bearing under turbulent regime has been conducted. Governing equation is solved numerically by using finite difference technique. Constantinescu's turbulent lubrication theory is used for this analysis. The steady state characteristics such as load carrying capacity, friction variable, end flow rate and attitude angle have been investigated over a broad span of variables like Reynolds's number, eccentricity ratio, slenderness ratio and bearing speed parameter. These characteristics are numerically evaluated using Borland C++ software for windows 7 operating system. The results are denoted by graphs which can be convenient for the analysis of such bearings.

Influence of Aspect Ratio on the Performance Characteristics of Plain Journal Bearing Lubricating With Non-Newtonian Lubricant

“…They observed that aspect ratio affect the stability of journal bearing at some extent. Sufficient amount of work have been done on performance characteristics taking into account of the effect of aspect ratio [5][6][7][8][9][10][11]. Das et al [5] presented the performance of hydrodynamic journal bearing operated with micro-polar fluids at various aspect ratio and eccentricity ratio.…”

“…They concluded that the stability of bearing is increases with decreasing aspect ratio. Saikia and Kalita [9] investigated the performance parameters of porous journal bearing under turbulent regime using finite difference scheme. They noted that the load carrying capacity and attitude angle rises with increasing aspect ratio while friction coefficient decreases.…”