This paper describes recent research in integrated aerodynamic-performance design optimization applied to a supersonic transport wing. The subsonic and supersonic aerodynamics are modeled with linear theory and the aircraft performance is evluated by using a complete mission analysis. The goal of the optimization problem is to either maximize the aircraft range or minimize the take-off gross weight while constraining the total fuel load and appraoch speed. A major difficult encountered during this study was the inabilty to obtain accurate derivatives of the aerodynamic models with respect to the planform shape. This work addresses this problem and provides one solution for the derivative difficulties. Additional optimization studies reval the impact of camber design on the global optimization problem. In these studies, the planform optimization is first conducted on a flat plate wing and camber optimization is performed on the resulting planform. The results are compared with those obtained through use of a parametric description for the mean camber surface and simultaneous design of the planform and camber surface.
Aerodynamic-performance planform and camber optimization of a supersonic transport wing
Die aerodynamische Leistungssteigerung einer Tragfläche für Überschall-Transportflugzeuge durch die Optimierung von Wölbung und Planförmigkeit
SAE Technical Papers ; 1-11
1993
11 Seiten, 24 Bilder, 8 Tabellen, 12 Quellen
Aufsatz (Konferenz)
Englisch
Luftfahrttechnik , Flugzeugbau , Transportflugzeug , Überschallgeschwindigkeit , Tragfläche (Aerodynamik) , Aerodynamik , Prozesswirkungsgrad , Prozessoptimierung , Leistungssteigerung , theoretische Untersuchung , Tragflügeltheorie , Auslegung (Dimension) , Entwurfsparameter , Versuchsergebnis , technische Beschreibung
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