The Effects of Converging and Diverging Axial Taper on the Rotordynamic Coefficients of Liquid Annular Pressure Seals: Theory Versus Experiment

[+] Author and Article Information
W. Todd Lindsey

Williams International, Walled Lake, Michigan

Dara W. Childs

Turbomachinery Laboratory, Texas A&M University, College Station, Texas

J. Vib. Acoust 122(2), 126-131 (Nov 01, 1995) (6 pages) doi:10.1115/1.568457 History: Received November 01, 1995
Copyright © 2000 by ASME
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Fleming, D., 1977, “High Stiffness Seals for Rotor Critical Speed Controls,” ASME Paper 77-DET-10.
Childs,  D., and Dressman,  J., 1985, “Convergent-Tapered Annular Seals: Analysis and Testing for Rotordynamic Coefficients,” J. Tribol., 107, pp. 307–317.
Childs, D., 1993, Turbomachinery Rotordynamics; Phenomena, Modeling, and Analysis, Wiley, New York.
Childs,  D., and Hale,  K., 1994, “A Test Apparatus and Facility to Identify the Rotordynamic Coefficients of High-Speed Hydrostatic Bearings,” ASME J. Tribol., 116, pp. 337–344.
Rouvas,  C., and Childs,  D., 1993, “A Parameter Identification Method for the Rotordynamic Coefficients of a High-Reynolds-Number Hydrostatic Bearing,” ASME J. Vibr. Acoust., 115, pp. 264–270.
Meyer, C. A., McClintock, R. B., Silvestri, G. J., and Spencer, R. C., 1979, ASME Steam Tables; Thermodynamic and Transport Properties of Steam, 4th ed., The American Society of Mechanical Engineers, New York.
Den Hartog, J. P., 1952, Advanced Strength of Materials, McGraw-Hill, New York.


Grahic Jump Location
Leakage versus taper parameter
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Stiffness coefficients versus taper parameter
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Damping coefficients versus taper parameter
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Whirl-frequency ratio versus taper parameter
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Test-seal assembly drawing
Grahic Jump Location
Texas A&M University, Turbomachinery Laboratory high-speed hydrostatic bearing test rig



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