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

Hennings, H. and Send, W. (1998) Experimental Investigation and Theoretical Prediction of Flutter Behavior of a Plane Cascade in Low Speed Flow. Transactions of the ASME, Journal of Engineering for Gas Turbines and Power, Volume 120, Number 4 (October 1998), pp. 766-744.

Full text not available from this repository.

Abstract

The Institute of Aeroelasticity operates a test facility which enables 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 wind tunnel with a 1 x 0.2 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 two-dimensional theoretical model of the 11 blades, including the wind tunnel 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 affected by the air stream, leading to a sensitive dependence on the aerodynamic forces.

Item URL in elib:https://elib.dlr.de/14107/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=1999,
Title:Experimental Investigation and Theoretical Prediction of Flutter Behavior of a Plane Cascade in Low Speed Flow
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hennings, H.UNSPECIFIEDUNSPECIFIED
Send, W.UNSPECIFIEDUNSPECIFIED
Date:1998
Journal or Publication Title:Transactions of the ASME, Journal of Engineering for Gas Turbines and Power
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:Volume 120, Number 4
Page Range:pp. 766-744
Status:Published
Keywords:aeroelasticity, flutter, wind tunnel tests, cascade flow, subsonic flow, compressor blades
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: DLR-Beauftragter, elib
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:25

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