The finite element method is applied to the vibration analysis of axial flow turbine disks. Using the axi-symmetric properties of the configuration of such disks, several finite elements are developed to describe the bending of thin or moderately thick circular plates, and which are characterized by only four- or eight-degrees-of-freedom. These elements incorporate the desired number of diametral nodes in their dynamic deflection functions, and allow for any specified thickness variation in the radial direction. In addition, the effects of in-plane stresses which might arise from rotation or radial temperature gradient, and the effects of transverse shear and rotary inertia in moderately thick plates are readily accounted for. The accuracy and convergence of these elements is demonstrated by numerical comparison with both exact and experimental data for disks.
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August 1976
This article was originally published in
Journal of Engineering for Industry
Research Papers
Vibration Analysis of Axial Flow Turbine Disks Using Finite Elements
G. J. Wilson,
G. J. Wilson
Carleton University, Ottawa, Ontario, Canada
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J. Kirkhope
J. Kirkhope
Carleton University, Ottawa, Ontario, Canada
Search for other works by this author on:
G. J. Wilson
Carleton University, Ottawa, Ontario, Canada
J. Kirkhope
Carleton University, Ottawa, Ontario, Canada
J. Eng. Ind. Aug 1976, 98(3): 1008-1013
Published Online: August 1, 1976
Article history
Received:
June 4, 1975
Online:
July 15, 2010
Citation
Wilson, G. J., and Kirkhope, J. (August 1, 1976). "Vibration Analysis of Axial Flow Turbine Disks Using Finite Elements." ASME. J. Eng. Ind. August 1976; 98(3): 1008–1013. https://doi.org/10.1115/1.3438992
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