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Experimental Investigation and Theoretical Prediction of Flutter Behaviour of a Plane Cascade in Low Speed Flow.

Hennings, H. and Send, W. (1996) Experimental Investigation and Theoretical Prediction of Flutter Behaviour of a Plane Cascade in Low Speed Flow. In: American Society of Mechanical Engineers, Proceedings of the ASME Conference, Paper no. 96-GT-417, 1996. ASME Turbo-Expo, June 1996,Birmingham, U.K..

Full text not available from this repository.

Abstract

The Institute of Aeroelasticity operates a test facility which enables the aeroelastic investigations of plane cascades in low- speed flow. The test stand serves as a pilot facility to develop tools for analogous investigations in transonic flow. Eleven blades are elastically suspended in a windtunnel with a 1x0.2 square meter cross section. This paper describes the experimental method of determining the flutter boundary by extrapolation of the results measured in subcritical flow. A 2D theoretical model of the 11 blades including the windtunnel walls permits the computation of unsteady pressures, forces and moments in close relation to the experiment. The prediction of flutter is compared with experimental results. In the present investigation, the motion of the blades is constrained to pitch around mid-chord. The vibrating blades are mechanically uncoupled. Any interaction between the blades is effected by the air stream, leading to a sensitive dependence on the aerodynamic forces.

Item URL in elib:https://elib.dlr.de/39781/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996, pages=8,
Title:Experimental Investigation and Theoretical Prediction of Flutter Behaviour of a Plane Cascade in Low Speed Flow.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hennings, H.UNSPECIFIEDUNSPECIFIED
Send, W.UNSPECIFIEDUNSPECIFIED
Date:1996
Journal or Publication Title:American Society of Mechanical Engineers, Proceedings of the ASME Conference, Paper no. 96-GT-417, 1996
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:flutter measurements, flutter prediction, unsteady aerodynamics, cascade theory, eigenfunction analysis, response analysis
Event Title:ASME Turbo-Expo, June 1996,Birmingham, U.K.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L TT - Triebwerkstechnologien
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 10:54

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