Dynamic Response of Packets of Blades by The Finite Element Method

[+] Author and Article Information
A. L. Salama

Arab Maritime Transport Academy, Alexandria, ARE

M. Petyt

Institute of Sound and Vibration Research, University of Southampton, Southampton, England

J. Mech. Des 100(4), 660-666 (Oct 01, 1978) (7 pages) doi:10.1115/1.3453989 History: Received June 24, 1977; Online October 21, 2010


The finite element method is used to study the free vibration of packets of blades. A packet of six shrouded blades is analyzed, only the tangential vibrations being considered. Results are obtained to establish the effect of certain parameters such as stiffness ratio, mass ratio, the number of blades in the packet, the effect of rotation and the position of the lacing wires. The dynamic response of a packet to periodic loading is also studied. The cases of engine order harmonic excitation and partial admission of gas are considered with reference to a packet of six shrouded blades.

Copyright © 1978 by ASME
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