Method for Flutter Aero-servoelastic Open Loop Analysis

Publication: Canadian Aeronautics and Space Journal
December 2003

Abstract

Aero-servoelasticity (ASE) is a multi-disciplinary study of interactions among structural dynamics, unsteady aerodynamics,and control systems. In this paper, the Aircraft Test Model (ATM) developed by the NASA Dryden Flight Research Center is used, and the velocities at which flutter occurs are calculated by use of the Structural Analysis Routines (STARS) aero-servoelastic software.For the validation of our aero-servoelastic study, the STARS aero-servoelastic software, also developed by NASA, is used. We developed a new aero-servoelastic tool in Matlab to consider these interactions, and the results obtained through our method are compared with the ones obtained through STARS.Key words: aerodynamics, aeroelasticity, servo-controls, aero-servoelasticity.

Résumé

L'aéroservoélasticité (ASE) est l'objet d'une étude multidisciplinaire des interactions entre la dynamique structurale, l'aérodynamique instable et les systèmes de commande. Dans le présent document, le matériel utilizé est la maquette d'aéronef mise au point par le Dryden Flight Research Center de la NASA. Les vitesses auxquelles le flottement se produit sont calculées au moyen du logiciel d'aéroservoélasticité STARS.Nous avons également utilizé le logiciel d'aéroservoélasticité STARS mis au point par la NASA pour valider notre étude sur l'aéroservoélasticité, puis nous avons élaboré un nouvel outil d'aéroservoélasticité dans le « Matlab » pour analyser ces interactions. Les résultats obtenus par le biais de notre méthode sont comparés à ceux qui ont été obtenus à l'aide du logiciel STARS.Mots clés : Aérodynamique, aéroélasticité, servocommande, aéroservoélasticité.

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cover image Canadian Aeronautics and Space Journal
Canadian Aeronautics and Space Journal
Volume 49Number 4December 2003
Pages: 179 - 190

History

Version of record online: 18 March 2011

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Ruxandra Mihaela Botez

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