Load Performances Analysis of Orifice Compensated High-Speed Externally Pressurized Spherical Gas Bearing

Abstract:

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The influence of parameters to load performances of a high-speed externally pressurized spherical gas bearing compensated by two-rows of orifices has been studied numerically based on finite element method (FEM). Reynolds equation governing the flow field in the clearance space in spherical coordinates system is transformed into a analogous style in Descartesian coordinates by parameter substitution, and Galerkin weighted residual method is applied to reduce the order of derivatives of the transformed equation. Pressure distribution on the gas-film is obtained by solving of the equation. On the basis of theories, influences of rotating speed, nominal gas-film thickness and supplying pressure to load carrying capacity and stiffness are analyzed. Comparison of performances between hydrostatic and hybrid state of the bearing has also presented.

Info:

Periodical:

Edited by:

Kai Cheng, Yingxue Yao and Liang Zhou

Pages:

732-736

DOI:

10.4028/www.scientific.net/AMM.10-12.732

Citation:

Y. X. Yao et al., "Load Performances Analysis of Orifice Compensated High-Speed Externally Pressurized Spherical Gas Bearing", Applied Mechanics and Materials, Vols. 10-12, pp. 732-736, 2008

Online since:

December 2007

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$35.00

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