南京航空航天大学学报（英文版）2007，Vol.24Issue(3)：181-187,7.
基于代理模型的气动设计稳健优化方法
ROBUST OPTIMIZATION OF AERODYNAMIC DESIGN USING SURROGATE MODEL
王宇 1余雄庆1
作者信息
- 1. 南京航空航天大学航空宇航学院,南京,210016,中国
- 折叠
摘要
Abstract
To reduce the high computational cost of the uncertainty analysis, a procedure is proposed for the aerodynamic optimization under uncertainties, in which the surrogate model is used to simplify the computation of the uncertainty analysis. The surrogate model is constructed by using the Latin Hypercube design and the Kriging model. The random parameters are used to account for the small manufacturing errors and the variations of operating conditions. Based on the surrogate model, an uncertainty analysis approach, called the Monte Carlo simulation, is used to compute the mean value and the variance of the predicated performance. The robust optimization for aerodynamic design is formulated, and solved by the genetic algorithm. And then, an airfoil optimization problem is used to test the proposed procedure. Results show that the optimal solutions obtained from the uncertainty-based optimization formulation are less sensitive to uncertainties. And the design constraints are still satisfied under the uncertainties.关键词
代理模型/不确定性/翼型/气动优化Key words
surrogate model/ uncertainty/ airfoil / aerodynamic optimization分类
航空航天引用本文复制引用
王宇,余雄庆..基于代理模型的气动设计稳健优化方法[J].南京航空航天大学学报（英文版）,2007,24(3):181-187,7.
