High-fidelity aero-structural optimization of the wing twist using the NASA common research model / J.M. Feldwisch, T. Klimmek, Dep. Loads Analysis and Aeroelastic Design, DLR Institute of Aeroelasticity, Göttingen, S. Keye, Dept. Transport Aircraft, DLR Institute of Aerodynamics and Flow Technology, Braunschweig ; Deutscher Luft- und Raumfahrtkongress 2018