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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Application of CFD Analysis for Rotating Machinery—Part I: Hydrodynamic, Hydrostatic Bearings and Squeeze Film Damper

[+] Author and Article Information
Zenglin Guo, Toshio Hirano, R. Gordon Kirk

Rotor Dynamics Laboratory, Mechanical Engineering Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061

J. Eng. Gas Turbines Power 127(2), 445-451 (Apr 15, 2005) (7 pages) doi:10.1115/1.1807415 History: Received October 01, 2002; Revised March 01, 2003; Online April 15, 2005
Copyright © 2005 by ASME
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References

Figures

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Hydrodynamic bearing model
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Pressure profile of hydrodynamic bearing
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Temperature and viscosity distribution (case 2, 0.5 of eccentricity ratio, 9550 rpm of speed): (a) temperature, (b) dynamic viscosity
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Bearing performances (5000 rpm of speed): (a) load capacity, (b) maximum pressure (c) attitude angle, (d) mass flow
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Average and maximum temperatures (case 2, 5000 rpm of speed)
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Temperature distribution on one cross section of bearing housing
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Temperature distribution on one circular layer of bearing housing
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Pressure distribution of flow-constant hydrostatic bearing: (a) hydrostatic-operating, (b) hybrid-operating
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Pressure distribution under hydrostatic-operating condition: (a) pre- and post-orifice, (b) bearing surface
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Pressure distribution under hybrid-operating condition (9550 rpm of speed): (a) pre- and post-orifice, (b) bearing surface
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Pressure decrease within pocket area in hydrostatic-operating bearing
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Whirling simulation of SFD

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