Aeroelastic tailoring for static and dynamic loads with blending constraints
Marco Tito Bordogna (Office National d'Etudes et de Recherches Aerospatiales, TU Delft - Aerospace Structures & Computational Mechanics)
P.M.G.J. Lancelot (TU Delft - Aerospace Structures & Computational Mechanics)
Dimitri Bettebghor (Office National d'Etudes et de Recherches Aerospatiales)
R. De Breuker (TU Delft - Aerospace Structures & Computational Mechanics)
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Abstract
In the present paper the authors want to investigate the effect of different load configuration in order to identify the ones driving the optimization. A set of static loads, gust loads and static loads with maneuver load alleviation (MLA) are tested. Gust loads have been included in the optimization via an equivalent static load (ESL). Composite blending is tackled by means of continuous constraints and a two phases approach is proposed to find a blended stacking sequence table. Results show that region of influence can be identified for specific loads and that MLA can be beneficial for structural weight reduction. Finally, the blending constraints prove their effectiveness by significantly reducing the error in retrieving a blended stacking sequence.