Multilevel decomposition approach to the preliminary sizing of a transport aircraft wing

Autor:	Gregory A. Wrenn, Augustine R. Dovi
Rok vydání:	1988
Předmět:	Engineering business.industry Multidisciplinary design optimization Aerospace Engineering Structural engineering computer.software_genre Sizing Finite element method Nonlinear programming Nonlinear system Control theory Convergence (routing) Fuel efficiency Computer Aided Design business computer
Zdroj:	Journal of Aircraft. 25:632-638
ISSN:	1533-3868 0021-8669
DOI:	10.2514/3.45634
Popis:	A multilevel/multidisciplinary optimization scheme for sizing an aircraft wing structure is described. A methodology using nonlinear programming in application to a very large engineering problem is presented. This capability is due to the decomposition approach. Over 1300 design variables are considered for this nonlinear optimization task. In addition, a mathematical link is established coupling the detail of structural sizing to the overall system performance objective, such as fuel consumption. The scheme is implemented as a three level system analyzing aircraft mission performance at the top level, the total aircraft structure as the middle level, and individual stiffened wing skin cover panels at the bottom level. Numerical show effectiveness of the method and its good convergence characteristics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e0fdc1f21588a5b39d8b21334a6cdbf9 https://doi.org/10.2514/3.45634 Zobrazit plný text záznamu