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RESEARCH PAPERS

Rotating Blade Vibration Analysis Using Shells

[+] Author and Article Information
A. W. Leissa, J. K. Lee, A. J. Wang

Department of Engineering Mechanics, Ohio State University, Columbus, Ohio

J. Eng. Power 104(2), 296-302 (Apr 01, 1982) (7 pages) doi:10.1115/1.3227279 History: Received December 11, 1980; Online September 28, 2009

Abstract

Shallow shell theory and Ritz method are employed to determine the frequencies and mode shapes of turbomachinery blades having both camber and twist, rotating with non-zero angles of attack. Frequencies obtained for different degrees of shallowness and thickness are compared with results available in the literature, obtained from finite element analyses of nonrotating blades. Frequencies are also determined for a rotating blade, showing the effects of changing the (1) angular velocity of rotation (2) disk radius and (3) angle of attack, as well as the significance of the most important body force terms.

Copyright © 1982 by ASME
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