Analysis of the effect of oil inlet size on the static performance characteristics of non-Newtonian lubricated hole-entry hybrid journal bearings. (10th August 2021)

• Record Type: Journal Article
• Authors: Cao, Haiyin; Huang, Yu; Rong, Youmin; Wu, Hao; Guo, Minghui
• Is Part Of: Journal of mechanics. Volume 37:Number 1(2021)
• Page Start: 522
• Page End: 531
• Publication Date: 2021-08-10
• Subjects: hole-entry hybrid bearing -- non-Newtonian lubricant -- inlet pocket -- static performance characteristics; Mechanics, Analytic -- Periodicals; Mechanics -- Periodicals; 620.1005
• DOI: 10.1093/jom/ufab020
• Languages: English
• ISSNs: 1727-7191

Abstract

Abstract: In this study, the influence of inlet pocket size on the static performance of non-Newtonian lubricated hole-entry hybrid journal bearings is theoretically analyzed. The oil film of the bearing is discretized into a nonuniform mesh containing the geometric characteristics of the oil inlet pocket, and the inlet pocket is treated as a micro-oil recess. The Reynolds equation is solved by the finite element method based on Galerkin's techniques, and a new solution strategy to solve the recess/pocket pressure is proposed. The power-law model is used to introduce the non-Newtonian effect. The results show that the static performance characteristics of this type of bearing are greatly affected by the pocket size at both zero speed and high speed.