22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-4.7.1 (IL)

PROGRESS IN THE PREDICTION AND ANALYSIS OF AEROSERVOELASTIC INSTABILITIES ON LARGE CIVIL TRANSPORT AIRCRAFT

M. Lacabanne, A. Laporte
AEROSPATIALE MATRA AIRBUS, Toulouse, France

Keywords: aeroservoelastic instabilities on large civil transport aircraft

The civil aircraft manufacturers are developing and studying very large transport aircraft capable of seating more than 500 passengers. Some typical characteristics of these aircraft (overall size, mass, number of engines, large diameter engine fan, …), associated with flight conditions in the transonic regime and implementation of Flight Control Systems (FCS) require to improve the models for the prediction of aeroelastic instabilities. The paper shows that progress made by Airbus partners in the field of aeroservoelasticity have been initiated by remarkable technical events coming with the development of Airbus aircraft family. It reviews the progress which have been made in the structural dynamic and in the unsteady aerodynamic models, as well as in the prediction of interaction with the Flight Control Systems .

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