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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Calculating the Eigenfrequency of Rotating Acoustic Annulus Inside Labyrinth Seals of Turbomachines

[+] Author and Article Information
Stefan Hurlebaus, Lothar Gaul

Institute A of Mechanics, University of Stuttgart, Allmandring 5b, 70550 Stuttgart, Germany

J. Eng. Gas Turbines Power 127(1), 178-181 (Feb 09, 2005) (4 pages) doi:10.1115/1.1787501 History: Received October 09, 2002; Revised November 20, 2003; Online February 09, 2005
Copyright © 2004 by ASME
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References

Kwanka,  K., 1997, “Improving the Stability of Labyrinth Gas Seals,” ASME J. Eng. Gas Turbines Power, 123(2), pp. 383–387.
Childs, D. W., 1993, Turbomachinery Rotordynamics, Wiley, New York.
Gasch, R., Nordmann, R., and Pfützner, H., 2002, Rotordynamik, Springer, Berlin.
Stetter, H., 1994, Thermische Strömungsmaschinen, Manuskript zur Vorlesung, Institut für Thermische Strömungsmaschinen, Universität Stuttgart.
Schuck, G., and Nordmann, R., 2002, “Investigation of Self-Excited Vibration in Flexible Labyrinth Seals due to Instationary Pressure Fields,” in Proceedings IFToMM International Conference on Rotor Dynamics, pp. 995–1002, Sydney, Australia.
Childs,  D. W., and Scharrer,  J., 1986, “An Iwatsubo-Based Solution for Labyrinth Seals—Comparison to Experimental Results,” ASME J. Eng. Gas Turbines Power, 108, pp. 325–331.
Benckert, H., 1980, “Strömungsbedingte Federkennwerte in Labyrinthdichtungen,” Dissertation, Institut für Strömungsmaschinen und Maschinenlaboratorium, Universität Stuttgart, Stuttgart, Germany.
Thieleke, H., 1991, “Experimentelle und Theoretische Untersuchungen der Strömungskräfte in Labyrinthdichtungen von Turbomaschinen,” Dissertation, Institut für Strömungsmaschinen und Maschinenlaboratorium, Universität Stuttgart, Stuttgart, Germany.
Nackenhorst, U., Wiesemann, S., and Lammering, R., 2000, “Zur Schallabstrahlung Rotierender Strukturen,” in Anwendungen der Akustik in der Wehrtechnik, Deutsche Gesellschaft für Wehrtechnik.
Gaul, L., Nackenhorst, U., and Nolte, B., 2000, “Numerical Simulation of Noise Radiation From Rolling Tires,” in W. Wendland, editor, Multified Problems in Solid and Fluid Mechanics, Springer, Berlin, pp. 262–269.
Gaul, L., Fischer, M., and Nackenhorst, U., 2002, “Vibrations and Sound Radiation Generated by Contact Between a Rotating Wheel and a Plane,” in Proceedings of ISROMAC-9, pp. DD-ABS-006:1–6.

Figures

Grahic Jump Location
Kinematical deformation of the extensible elastic annulus
Grahic Jump Location
Fundamental eigenmode of the circular air column

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