Abstract.
In this paper, a two-level optimization approach is developed for the preliminary and conceptual design of airframe structures. The preliminary design, involving a single objective multidisciplinary optimization, constitutes the lower level where ASTROS (Automated STRuctural Optimization System) is employed for multidisciplinary optimization. The conceptual design, which is carried out at the upper level, aims mainly at configuration design. The multiple objectives are incorporated as a single objective function by using the K-S function formulation. The objective function and constraints at the upper level are modelled through response surface approximation. During the upper level optimization process, the branch and bound method is applied for solving the problem with discrete design variables. The proposed strategy is demonstrated by the optimization of an Intermediate Complexity Wing (ICW) model.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received June 23, 1999
Rights and permissions
About this article
Cite this article
Li, G., Wang, H., Aryasomayajula, S. et al. Two-level optimization of airframe structures using response surface approximation. Struct Multidisc Optim 20, 116–124 (2000). https://doi.org/10.1007/s001580050143
Issue Date:
DOI: https://doi.org/10.1007/s001580050143