Volume 36, Number 1, February 2018
|Page(s)||49 - 56|
|Published online||18 May 2018|
Aerodynamic Design Based on Global Sensitivity Analysis Method
To deal with the problem of the difficult optimization search and expensive computational cost caused by large-scale design variables, the hierarchical optimization design system based on the global sensitivity analysis method is established in this paper. The M-OAT method is used to analyze the global sensitivity of the design variables, according to the sensitivity information to layer design variables, then optimize the design variables in each hierarchy. Through the study of the hierarchical optimization design of airfoils and wings, compared with the normal parameter optimization design system, the hierarchical optimization design system based on the global sensitivity analysis method can reduce effectively the number of design variables in a single optimization, reduce the difficulty of the optimization search, improve the convergence speed of the optimization, gain better optimization results at the same time. For optimization design with large-scale design variables, the hierarchical optimization design system based on the global sensitivity analysis method is a sort of effective ways of design.
Key words: aerodynamic design / sensitivity analysis / hierarchical optimization design / parameter optimization design
关键字 : 气动设计 / 灵敏度分析 / 分层优化设计 / 全参数优化设计
© 2018 Journal of Northwestern Polytechnical University. All rights reserved.
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