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A parametric study of the aeroelastic stability of a binary wing-with-engine nacelle flutter system in incompressible flow

Published online by Cambridge University Press:  04 July 2016

H. Försching  and
A. Senft
H. Försching
Affiliation:
Institut für Aeroelastik, DLR Göttingen, Germany
A. Senft
Affiliation:
Institut für Aeroelastik, DLR Göttingen, Germany
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Summary

A systematic parametric investigation of the flutter behaviour of a binary wing-with-engine nacelle system in inviscid incompressible flow is performed. The equations of motion in coupled bending and torsion are initially set up and the aerodynamic model for the calculation of the motion-induced unsteady airloads is described. The aeroelastic stability equations are then derived in non-dimensional form and the procedure used for the numerical solution of these equations is outlined. For a typical large commercial aircraft configuration, numerical results are presented for a variety of systematic parameter variations with special emphasis on the effects of the location of the elastic axis and the motion-induced unsteady airloads on the engine nacelle.

Type
Research Article
Information
The Aeronautical Journal , Volume 95 , Issue 950 , December 1991 , pp. 359 - 369
Copyright
Copyright © Royal Aeronautical Society 1991 

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Footnotes

Prof. Dr.-Ing H. Försching and Dipl.-Ing. A. Senft, Institut für Aeroelastik der Deutschen Forschungsanstalt für Luft- und Raumfahrt, Forschungszentrum Gottingen, Bunsenstraβe 10, D-3400 Göttingen, FRG.

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