In this paper, the aileron reversal speed of a wing torsion box is maximized by reinforcing its upper skin. The authors propose a topology optimization approach using the spectral level set methodology. This is based on the level set methods, which represent the interface describing the reinforcements as the zero level set of a function. According to the proposed methodology, this function is discretized using its Fourier coefficients. These coefficients become the design variables of the optimization problem assigned to define the reinforcing layout. Results show that approximately the same optimal reinforcement layout is obtained from topologically different initial configurations. The two underlying ideas of the present work are to propose the spectral level set methodology as a framework for topology optimization, given its potential for reducing the design space dimension, and, considering the possibilities of new custom-made materials, to readdress the reinforcement perspective in aircraft structures without the weight penalty.
Topology optimization of a reinforced wing box for enhanced roll maneuvers
Optimierung der Topologie einer verstärkten Tragflügel-Box für erhöhte Rollmanöver
AIAA Journal ; 46 , 3 ; 548-556
2008
9 Seiten, 10 Bilder, 7 Tabellen, 27 Quellen
Article (Journal)
English
Computation of delta-wing roll maneuvers
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