26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS2008-1.1 ST:

AERO-STRUCTURAL MDO OF A SPAR-TANK-TYPE WING FOR AIRCRAFT CONCEPTUAL DESIGN

P. R. Caixeta Jr., A. M. Abdalla, F. D. Marques, F. M. Catalano
Univ. of São Paulo, Brazil

Keywords: aerodynamics; structures; fuel volume; genetic algorithm; multidisciplinary optimization

An aero-structural MDO is used to design a tubular spar of a conceptual aircraft. This spar works as the structure and the fuel tank (spar-tank). The aim is to optimize the aerodynamic of the wing, minimize its structural weight and maximize the fuel volume, considering four basic flight conditions.

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