小孔节流静压止推气体轴承静特性的数值分析  

Numerical Analysis of Externally Pressurized Gas Thrust Bearing with Supply Holes

作　　者：侯予[1] 赵祥雄[2] 陈双涛[1] 陈纯正[1] 

机构地区：[1]西安交通大学制冷与低温工程研究所,陕西西安710049 [2]河南农业大学机电工程学院,河南郑州450002

出　　处：《润滑与密封》2008年第9期1-3,12,共4页Lubrication Engineering

基　　金：新世纪优秀人才支持计划资助项目(NCET-05-0834);长江学者和创新团队发展计划资助项目(IRT0746)

摘　　要：介绍了计算流体力学软件FLUENT及其在气体轴承研究中的应用。针对环形小孔节流静压止推气体轴承,基于FLUENT软件进行了简化假设并建立了计算模型,利用FLUENT软件对止推气体轴承模型进行了数值分析,求解了环形小孔节流静压止推气体轴承的压力场分布、耗气量和承载能力等轴承静特性,并成功捕捉到了大气膜间隙下供气孔周围的压力突降区。对计算结果进行了分析,并与文献计算值以及试验值进行了对比,验证了数值分析的可靠性。A software of Computational Fluid Dynamics(CFD),FLUENT,was introduced and used in the research of gas bearings.Physical and mathematical models were proposed and simplified according to the usual assumption.By using FLUENT,the numerical simulation was made on the externally pressurized gas thrust bearing with supply holes.The static parameters such as load capacity,pressurized gas consumption and the pressure filed of this thrust bearing were obtained.The characteristic of pressure dive close to feeding hol...

关 键 词：气体轴承 静压轴承 止推轴承 FLUENT 

分 类 号：TH133.3[机械工程—机械制造及自动化]