J4 ›› 2009, Vol. 20 ›› Issue (23): 2875-2879.

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Stability Analysis of Hydrodynamic Journal Bearing System Based on Sommerfeld Number

Xu Wubin;Wang Zhenjiang;Chen Qibing;Li Bing;Zhang Hongxian
  

  1. Guangxi University of Technology, Liuzhou,Guangxi,545006
  • Online:2009-12-10 Published:2010-01-29

基于Sommerfeld数的滑动轴承转子系统稳定性分析
 

徐武彬;王镇江;陈其兵;李冰;张宏献
  

  1. 广西工学院 ,柳州 ,545006

Abstract:

The stability analysis method of hydrodynamic journal bearing system based on non-linear oil film force was presented, in which the approach to determine the stability of the system and the mathematical calculating method were introduced. A dimensionless Sommerfeld number was utilized to express the system synthetical parameters. By the Sommerfeld number, the stability and the dynamic characteristics of hydrodynamic journal bearing system can be easily calculated, and a dimensionless stability map of a rigid and symmetrical journal bearing system was presented as an example.

Key words: hydrodynamic journal bearing system, Sommerfeld number, stability, non-linear

摘要:

系统介绍了基于非线性油膜力模型的滑动轴承转子系统稳定性分析方法,提出了基于转子轴心轨迹分析的系统稳定性判定方法及其数学计算方法。在系统分析过程中采用量纲一的Sommerfeld数来综合表示系统的主要参数,通过该参数可以很方便地分析计算系统的动力学特性及其稳定性,并给出了系统量纲一的稳定性临界曲线图。

关键词:

滑动轴承转子系统;Sommerfeld数;稳定性;非线性的
 

CLC Number: