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Aeroelastic Stability of Cascades in Turbomachinery.

Försching, H. (1994) Aeroelastic Stability of Cascades in Turbomachinery. Progress in Aerospace Sciences. Pergamon Press Ltd..

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State-of-the-art prediction of the aeroelastic stability of cascades in axial-flow turbomachines is reviewed. The first main chapter of the article presents a comprehensive formulation of the two- and three-dimensional classical (unstalled) flutter problem of tuned and mistuned rotor blade rows and bladed disc assemblies. Within the framework of linearized analysis, a complete and generalized theory in modal form is outlined, comprising the various formulations of the cascade flutter problem distributed in fragments throughout the literature. Brief outlines are also made of recent advances in unsteady aerodynamic methods for turbomachinery aeroelastic applications. The second main chapter contains a parametric study of the classical flutter stability characteristics of compressor and turbine cascades in subsonic and supersonic flow. Stability boundaries and dominant trends in flutter behaviour are outlined, and the significant effects of blade mistuning on the aeroelastic stability of turbomachine bladings are highlighted.

Item URL in elib:https://elib.dlr.de/39652/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=1994, pages=Vol. 30,
Title:Aeroelastic Stability of Cascades in Turbomachinery.
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Journal or Publication Title:Progress in Aerospace Sciences
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Pergamon Press Ltd.
Series Name:Vol. 30
Keywords:Structural vibrations, aeroelastic stability, unsteady aerodynamics of cascades.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: DLR-Beauftragter, elib
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 10:50

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