EFERA: AN EFFICIENT REALIZATION TECHNIQUE FOR THE IDENTIFICATION OF LARGE AEROELASTIC MODELS.

Due to the high flexibility of modern transportation aircraft, a precise knowledge of their aeroelastic behaviour is required to design the flight control system. For this purpose, an identification toolbox named Harrisa® was developed at ONERA. It was extensively used by Airbus for the development of the A340-600.The requirements for the recent Airbus A380 increased tremendously concerning the size of the models to be identified. Efficient identification techniques had then to be worked out. This paper introduces EFERA an extremely rapid realization algorithm that is compatible with an interactive use on such large-scale systems.