Blades Forced Response Analysis With Friction Dampers

[+] Author and Article Information
M. Berthillier, C. Dupont, R. Mondal

Snecma, 77550 Moissy Cramayel, France

J. J. Barrau

UniversiteĢ Paul Sabatier 31400 Toulouse, France

J. Vib. Acoust 120(2), 468-474 (Apr 01, 1998) (7 pages) doi:10.1115/1.2893853 History: Received June 01, 1996; Online February 26, 2008


A multiharmonic frequency domain analysis combined with a Craig-Bampton component mode synthesis is presented to compute the dry friction damped forced response of blades. The accuracy of the analysis is established, for a cantilever beam with a dry friction damper attached, by comparison with experimental results and time domain analysis. The method has then been applied to a model fan blade damped by a blade to ground damper.

Copyright Ā© 1998 by The American Society of Mechanical Engineers
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