小孔节流方式对静压气体球轴承工作特性的影响  

The Effect on Operating Characteristics of Static Pressure Gas Bearing for Different Orifice

作　　者：解鹏[1,2] 金光[1] 张雷[1] 姜明洙[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院研究生院,北京100039

出　　处：《润滑与密封》2010年第3期77-80,共4页Lubrication Engineering

摘　　要：介绍了静压气体球轴承的结构形式和工作原理;给出了静压气体球轴承工作特性的工程计算方法;研究了在轴承几何参数相同的情况下,不同的小孔节流方式对静压气体球轴承工作特性的影响,并建立模型,通过Fluent软件对轴承的承载能力进行了仿真分析。结果表明:在设计参数相同的情况下,静压气体球轴承在环形孔式节流方式下的静刚度特性较好,但在简单孔式节流方式下有更好的承载和流量特性。The structure form and working principle of static pressure gas bearing were introduced,the process of engineering calculation for characteristics of the gas bearings was given,the effect on operating characteristics of static pressure gas bearing for different orifice was studied,the mathematical model was set up,and the operating characteristics of bearing was simulated by using Fluent software.The results show that,for the bearings of the same design parameters,the static pressure gas bearing of ring-hole throttle has a better stiffness characteristics,the bearing of simple-hole throttle has a better carrying capacity and flow characteristics.

关 键 词：小孔节流 静压气体球轴承 工作特性 

分 类 号：TH133.3[机械工程—机械制造及自动化]