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Tribology Transactions Volume 49, 2006 - Issue 1
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Original Articles

Incompressible and Analytical Study on an Out-Pump Type Complex Thrust Gas Bearing

S. M. YAO Ultra-Precision Optical-Electrical Instrument and Engineering Institute of Harbin Institute of Technology (HIT)
&
J. B. TAN Ultra-Precision Optical-Electrical Instrument and Engineering Institute of Harbin Institute of Technology (HIT)
Pages 96-101 | Received 22 Apr 2005, Accepted 05 Dec 2005, Published online: 22 Mar 2007
 
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ABSTRACT

The structure of an out-pump type thrust gas bearing was described, and an analytical model was developed under completely incompressible condition. The objectives were to investigate the coupling between aerodynamics and aerostatics in a complex thrust gas bearing and to improve the performance of the bearing. The model showed that the load-carrying capacity had five parts to it and that apparently there were pressure coupling and structure coupling between aerodynamics and aerostatics. The surface feature function was identically positive: it increased the load-carrying capacity greatly. There was also no limit regarding the pressure ratio—when the pressure ratio was 0, the load-carrying capacity increased to about 25%.

Review led by Bill Marscher

Notes

Review led by Bill Marscher

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