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Shaft flexibility effects on aeroelastic stability of a rotating bladed diskA comprehensive study of Coriolis forces and shaft flexibility effects on the structural dynamics and aeroelastic stability of a rotating bladed-disk assembly attached to a cantilever, massless, flexible shaft is presented. Analyses were performed for an actual bladed-disk assembly, used as the first stage in the fan of the 'E3' engine. In the structural model, both in-plane and out-of-plane elastic deformation of the bladed-disk assembly were considered relative to their hub, in addition to rigid disk translations and rotations introduced by shaft flexibility. Besides structural coupling between blades (through the flexible disk), additional coupling is introduced through quasisteady aerodynamic loads. Rotational effects are accounted for throughout the work, and some mode shapes for the whole structure are presented at a selected rpm.
Document ID
19900029316
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Khader, Naim
(Jordan University of Science and Technology, Irbid, United States)
Loewy, Robert
(Rensselaer Polytechnic Institute, Troy, NY, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Journal of Propulsion and Power
Volume: 5
ISSN: 0748-4658
Subject Category
Structural Mechanics
Accession Number
90A16371
Funding Number(s)
CONTRACT_GRANT: NAG3-37
Distribution Limits
Public
Copyright
Other

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