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Efficient optimization of integrated aerodynamic–structural design
Author(s) -
Haftka R. T.,
Grossman B.,
Eppard W. M.,
Kao P. J.,
Polen D. M.
Publication year - 1989
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620280308
Subject(s) - multidisciplinary design optimization , aerodynamics , multidisciplinary approach , design process , computer science , engineering design process , computational fluid dynamics , optimal design , process (computing) , sensitivity (control systems) , engineering , mathematical optimization , mechanical engineering , aerospace engineering , mathematics , process integration , process engineering , social science , machine learning , electronic engineering , sociology , operating system
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 concentrated 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.