锥面螺旋槽气体轴承静特性分析  

Static Characteristics Analysis of Conical Spiral Groove Aerodynamic Bearings

作　　者：贾晨辉[1] 杨伟[1] 邱明[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003

出　　处：《润滑与密封》2013年第2期14-17,22,共5页Lubrication Engineering

基　　金：国家自然科学基金资助项目(51275155)

摘　　要：以螺旋槽气体动压轴承为研究对象,建立螺旋槽气体动压轴承润滑分析的数学模型;通过几何变换简化模型,采用有限差分法对Reynolds方程进行求解,计算轴承间隙内的三维压力分布,揭示轴承结构参数和运行参数变化对轴承稳态气膜压力分布、轴承承载能力的影响规律,结果表明,为使动压轴承得到良好的静态特性,必须合理选择轴承结构设计参数。In order to research the static performances of conical spiral groove aerodynamic bearings, the mathematical model for the lubrication analysis of conical spiral groove aerodynamic bearings was established. Through the geometry transform ,the model was simplified for numerical solution. Reynolds equations of aerodynamic bearings were established and solved computed. by finite difference method. The three dimensional stress distributions within bearing clearance were numerically It revealed the influence of the bearing structure parameters and operation parameters variations to bearing steady state gas film pressure distribution and bearing capacity. The results show that bearing structure design parameters must be chosen reasonably in order to get good static characteristics for hydrodynamic bearings.

关 键 词：气体动压轴承 锥面螺旋槽 REYNOLDS方程 静特性 

分 类 号：TH133.37[机械工程—机械制造及自动化]