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RESEARCH PAPERS

Vibration Analysis of Rotating Compressor Blades

[+] Author and Article Information
R. Henry, M. Lalanne

Institut National des Sciences Appliquees, Laboratoire de Mecanique des Structures, Villeurbanne, France

J. Eng. Ind 96(3), 1028-1035 (Aug 01, 1974) (8 pages) doi:10.1115/1.3438403 History: Received June 11, 1973; Online July 15, 2010

Abstract

Calculation of the total potential energy of a system is performed in the case of thin rotating plates. The structure is divided into plane triangular elements with three nodes and eighteen degrees of freedom. The mass and stiffness matrices in which the rotation effects have been introduced are derived using area coordinates. First, the initial stresses due to the rotation are calculated; next, frequencies and modes are determined by a simultaneous iterative technique. The method is then applied to an existing compressor blade. The correlation with experimental results is good for the first ten frequencies and the first five modes. A calculation process for machine designers based on the methods introduced by Petricone-Sisto and Rawtani-Dokainish and the finite element method is then presented.

Copyright © 1974 by ASME
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