空气静压轴承静刚度有限元非线性分析  

Finite Element Analysis of Stiffness of the Static Air Bearing

作　　者：杨文勇[1] 马平[1] 

机构地区：[1]广东工业大学机电工程学院,广东广州510006

出　　处：《润滑与密封》2008年第2期53-55,74,共4页Lubrication Engineering

基　　金：广东省自然学科基金项目(05001811);国家自然科学基金项目(50775043)

摘　　要：在空气静压轴承的设计和应用中,由于非线性问题,常常难于定性确定轴承气膜刚度。采用有限元方法对空气静压轴承的静刚度进行分析,以通用有限元软件Ansys为分析平台,对轴承进行全参数三维实体建模,分析了轴承在不同偏心率下气膜上的压力分布,得到不同偏心率下轴承的承载力和静刚度变化规律。结果表明,当受载发生偏心时,空气静压轴承的静刚度表现出高度的非线性。For the design and application of static air bearing,it is often difficult to decide the value of the stiffness of bearing gas film because of nonlinear problem.Finite element analysis method was applied for the analysis of the stiffness of static air bearing.Through the FEA software Ansys,three-dimensional model of the bearing was set up,the pressure distribution of the bearing at different eccentricity and the variation of the load capacity and the film stiffness with eccentricity were analyzed.It is foun...

关 键 词：非线性分析 空气轴承 刚度 

分 类 号：TH133.3[机械工程—机械制造及自动化]