G. Schneider, F. van Dalen, T. Barth, H.R.E.M. Hörnlein, M. Stettner

The conceptual design process of a regional transport aircraft was selected for exercising multidisciplinary optimization by a GARTEUR Action Group. Four different wing designs were investigated to allow a discrete variation of the primary wing design variable, the aspect ratio (AR). For this type of wing design lift efficiency, roll rate and divergence speed are important aeroelastic design requirements. The application of a new hybrid optimization strategy to a multidisciplinary optimization problem is also presented. The applied hybrid strategy consists of three locally convergent optimization algorithms being part of the MBBLAGRANGE. The most interesting result of the multidisciplinary optimization run including strength, aeroelastic and flutter design requirements for each aspect ratio is the wing weight. The impact of this optimized wing weight on direct operating costs as a function of aspect ratio is demonstrated for this selected type of regional transport aircraft.

CEAS Conference on Multidisciplinary Aircraft Design and Optimization; Köln; 2001

Book Chapter

englisch

14,8 x 21,0 cm, 11 Seiten

DGLR-Bericht, 2001, 2001-05, CEAS Conference on Multidisciplinary Aircraft Design and Optimization; S.63-73; 2001; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

aircraft design, aspect ratio, aeronautics, multidisciplinary design optimisation

Bestellbar

2001