哈尔滨工业大学学报（英文版）2008，Vol.15Issue(2)：255-260,6.
Numerical analysis of bump foil bearings without nominal radial clearance
Numerical analysis of bump foil bearings without nominal radial clearance
LIU Zhan-sheng 1XU Huai-jin 1ZHANG Guang-hui1
作者信息
- 1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
- 折叠
摘要
Abstract
Bump foil bearings without nominal radial clearance were analyzed. An air film thickness model and a bearing theoretical analytical model were developed accounting for air compressibility and foil deformation. To analyze hydrodynamic characteristics of bump foil beatings with different operating eccentricities, the air film thickness equation and Reynolds equation were coupled through pressure and solved by Newton-Raphson Method(NRM) and Finite Difference Method (FDM). The characteristics of an bump foil bearing model were dis-cussed including load carrying capacity, film thickness and pressure distributions. The results of simulation show that bump foil beating without nominal radial clearance can provide better stability and greater load capaci-ty. This numerical analytical method also reveals a good convergence in numerical calculation.关键词
bump foil bearing/ film thickness model/ numerical analysisKey words
bump foil bearing/ film thickness model/ numerical analysis分类
机械制造引用本文复制引用
LIU Zhan-sheng ,XU Huai-jin ,ZHANG Guang-hui..Numerical analysis of bump foil bearings without nominal radial clearance[J].哈尔滨工业大学学报（英文版）,2008,15(2):255-260,6.
