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TECHNICAL NOTES

Performance of Damaged Hydrostatic Bearings: Predictions Versus Experiments

[+] Author and Article Information
Thomas Soulas

Rotordynamics Engineer, Dresser-Rand, Paul Clarke Drive, Olean, NY 14760-0560

Luis San Andrés

J. Tribol 125(2), 451-456 (Mar 19, 2003) (6 pages) doi:10.1115/1.1497361 History: Received February 18, 2002; Revised May 07, 2002; Online March 19, 2003
Copyright © 2003 by ASME
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References

Figures

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(a) Schematic view of hydrostatic bearing with plugged orifice; and (b) schematic view of hydrostatic bearing with worn land pattern
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Reference and plugged-orifice bearings. Flow rate Q versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and plugged-orifice bearings: direct stiffness coefficient KXX versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and plugged-orifice bearings: cross-coupled stiffness coefficient −KYX versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and plugged-orifice bearings: direct damping coefficient CYY versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and plugged-orifice bearings: direct inertia coefficient MYY versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and plugged-orifice bearings: whirl frequency ratio WFR versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and worn-land bearings: flow rate Q versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and worn-land bearings: direct stiffness coefficient KXX versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and worn-land bearings: cross-coupled stiffness coefficient KXY versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and worn-land bearings: direct damping coefficient CXX versus rotor speed/supply pressure configuration (centered rotor position)
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Reference and worn-land bearings: whirl frequency ratio WFR versus rotor speed/supply pressure configuration (centered rotor position)

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