The Design of Open Engineering Systems Lab

University at Buffalo - The State University of New York

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Investigation of Different Approximation Techniques in the Design of the High Speed Civil Transport Aircraft

Research Area: Research Publication Year: 1999
Type of Publication: Technical Report Keywords: Response surface models, kriging, multidisciplinary design
Authors: Srivastava, Amit; Hacker, Kurt; Lewis, Kemper
In this paper, different approximation techniques used in the modeling of the deterministic, non-random computer analyses are investigated. Two methods in particular, response surfaces and kriging (DACE) are compared in this paper. Kriging has been proposed as an alternative method to the widely used response surfaces. Previous use of kriging has not investigated its application to large-scale problems. Kriging and Responce Surface methods are applied to a large-scale problem, the High Speed Civil Transport Aircraft (HSCT) Approximation challenge, to study the different characteristics of these approximation methods. Approximations for the mathematical model of HSCT have been developed using both the techniques. No technique is shown to be superior in any case, but each method has merits depending upon the information available
The Third World Congress of Structural and Multidisciplinary Optimization