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Modeling and Simulation of a Externally Pressurized Spherical Gas Bearing

Journal Applied Mechanics and Materials (Volumes 10 - 12)
Volume e-Engineering & Digital Enterprise Technology
Edited by Kai Cheng, Yingxue Yao and Liang Zhou
Pages 182-186
DOI 10.4028/www.scientific.net/AMM.10-12.182
Citation H.B. Zhang et al., 2007, Applied Mechanics and Materials, 10-12, 182
Online since December, 2007
Authors H.B. Zhang, L. Zhou, Ying Xue Yao, Dong Li Qin
Keywords Externally Pressurized Bearing, Gas Film Thickness, Mass Flux, Orifice, Uniform Pressure Groove
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.

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