Abstract
In this research, a procedure to improve the feasi bility of the design space by approximation model i s proposed. The Chebyshev Inequality is used as the criterion of modification of the design space. This procedure is applied to the aero -elastic transonic wing design problem and the feasibility of the des ign space is greatly improved. Also the optimization results are improved after this procedure. That is, the probability to satisfy all imposed constraints is increased and the better design points are included in the design space after this procedure. And the use of both a second -order response surface model and the Kriging model is investigated and compared in accuracy, efficiency, and robustness as approximation model in this procedure for different sampling methods . As a result, a second -order response surface model is more appropriate for our application than the Kriging model , because it is linear enough to be fitted well by a response surface model.
Published Version
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