环形节流孔径向静压气体轴承的数值仿真
王迎，王秋晓，陈安科，刘娜
（重庆大学 机械工程学院，重庆 400030）
摘要：以环形节流孔径向静压气体轴承为研究对象，介绍了静压气体轴承的结构形式和工作原理，对气体润滑理论基础Reynolds方程进行了分析，利用计算流体动力学软件FLUENT对气体轴承的流场进行仿真分析，求解出了轴承气膜的压力分布。在轴承几何参数不变的情况下，分析了承载力与空气质量流量随不同供气压力和偏心率变化关系，并研究了静压气体轴承在高速工作下，动压效应对承载力的影响。
关键词：静压气体轴承；FLUENT软件；动压效应
中图分类号：TH133.36 文献标识码：A 文章编号：1006－0316 (2012) 01－0031－04
Numerical simulation of radial aerostatic bearings with ring orifice
WANG Ying，WANG Qiu-xiao，CHEN An-ke，LIU Na
（College of Mechanical Engineering，Chongqing University，Chongqing 400030，China）
Abstract：Radial aerostatic bearings with ring orifice were studied, the structure and working principle of aerostatic bearings were introduce, Reynolds equation which is the basic theory of the gas lubrication was analyzed, The bearing gas film pressure distribution was obtained by using the computational fluid dynamics software FLUENT to simulate aerostatic bearings flow field. In the same geometrical parameters of aerostatic bearing, Load capacity and gas mass flow were analyzed under different gas supply pressure and eccentricity. When the aerostatic bearing is at high speed, the influence of dynamic effect on load capacity was studied.
Key words：aerostatic bearings；FLUENT software；dynamic effect
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收稿日期：2011－06－10
作者简介：王迎（1984－），男，甘肃白银人，硕士研究生，主要研究方向为机电一体化。
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