𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Efficient optimization of integrated aerodynamic–structural design

✍ Scribed by R. T. Haftka; B. Grossman; W. M. Eppard; P. J. Kao; D. M. Polen

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
874 KB
Volume
28
Category
Article
ISSN
0029-5981

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✦ Synopsis

The introduction of composite materials is having a profound effect on the design process. Because these materials permit the designer to tailor material properties to improve structural, aerodynamic and acoustic performance, they require a more integrated multidisciplinary design process. Because of the complexity of the design process numerical optimization methods are required.

The present paper is focused on a major difficulty associated with the multidisciplinary design optimization process its enormous computational cost. We consider two approaches for reducing this computational burden: (i) development of efficient methods for cross-sensitivity calculation using perturbation methods; and (ii) the use of approximate numerical optimization procedures. Our efforts are concentratcd upon combined aerodynamic-structural optimization. Results are presented for the integrated design of a sailplane wing. The impact of our computational procedures on the computational costs of integrated designs is discussed.

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