Abstract
A reduced-order model is developed to study the parameter-dependent aeroelastic behaviour of two wing configurations with high-lift devices. One is the wing of a conventional turboprop aircraft, the other a wing with over-the-wing mounted ultra high bypass ratio engine. Characteristic aerodynamic loads are investigated with steady and unsteady flow simulations of a 2D profile section. 3D effects are taken into account using an adapted lifting line theory according to Prandtl. Structure and aerodynamic loads are coupled in modal space to predict aeroelastic instabilities. Bending and bending-torsion instabilities due to the high-lift systems become visible.
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