Investigation on Hydrodynamic Characteristics of Textured Meso Scale Gas Bearing

Abstract

In this paper, surface texturing has been adopted for meso scale gas journal bearing. Square texture shape is considered for the study. The compressible Reynolds equation of textured gas bearing is solved by the finite element method. For this, COMSOL 5.3 simulation software is used. The influence of partial texture on bearing hydrodynamic characteristics at variable process parameters such as eccentricity ratio, clearance, and journal speed has been studied. The hydrodynamic characteristics such as load capacity and friction coefficient are considered. In comparison with plain bearing, the significant improvement in hydrodynamic characteristics of textured bearing is observed. The texture arrangement in 0°–180° zone influences more to the load capacity and friction coefficient.