Modeling and Simulation of a Externally Pressurized Spherical Gas Bearing

H.B. Zhang; L. Zhou; Ying Xue Yao; Dong Li Qin

doi:10.4028/www.scientific.net/AMM.10-12.182

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 10-12Modeling and Simulation of a Externally...

Modeling and Simulation of a Externally Pressurized Spherical Gas Bearing

Abstract:

Because of many advantages that other kinds of bearings can not match, for example high precision and high speed, gas lubricated bearing has been used widely in areas such as ultra-precision machine tool and inertia apparatus. The paper introduced an orifice restrictor externally pressurized spherical gas bearing, which is easily shaped and has bigger stiffness in both axial and radial directions. The paper also introduced a bearing force calculation model based on finite partition of the bearing, in which the influence of the uniform pressure slot also considered.