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Load performances analysis of orifice compensated high-speed externally pressurized spherical gas bearing

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicatione-Engineering and Digital Enterprise Technology
PublisherTrans Tech Publications Ltd
Pages732-736
Number of pages5
ISBN (Print)0878494707, 9780878494705
DOIs
StatePublished - 2008

Publication series

NameApplied Mechanics and Materials
Volume10-12
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Keywords

  • FEM
  • Hybrid
  • Load performance
  • Spherical gas bearing

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