S1160202 Effect of Manufacturing Errors on Static Characteristics of Multi-Lobe Hydrodynamic Journal Bearings : Considering Manufacturing Error in the Position of Pads

Abstract

Purpose of this study is to elucidate effect of manufactuing error on characteristics of multi-lobe hydrodynamic jounal bearings. In this paper, as a first step to accomplish this purpose, effects of manufacturing error on static characteristics of four-lobe hydrodynamic jounal bearing was analyzed. Considering manufacturing error of position of lobe curvature, journal center locus, minimum oil film thickness and friction coefficient of four-lobe bearing were analyzed and discussed. As a result, manufacturing error of position of lobe curvature was found to affect the minimum oil film thickness. However, It was shown that friction coeffient of bearing was varied by manufacturing error of position of lobe curvature.