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http://dx.doi.org/10.5139/JKSAS.2006.34.1.042

Repetitive Response Surface Enhancement Technique Using ResponseSurface Sub-Optimization and Design Space Transformation  

Jeon, Gwon-Su (한국원자력의학원)
Lee, Jae-U (건국대학교)
Byeon, Yeong-Hwan (건국대학교)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.34, no.1, 2006 , pp. 42-48 More about this Journal
Abstract
In this study, a repetitive response surface enhancement technique (RRSET) is proposed as a new system approximation method for the efficient multidisciplinary design and optimization (MDO). In order to represent the highly nonlinear behavior of the response with second order polynomials, RRSET introduces a design space transformation using stretching functions and repetitive response surface improvement. The tentative optimal point is repetitively included to the set of experimental points to better approximate the response surface of the system especially near the optimal point, hence a response surface with significantly improved accuracy can be generated with very small experimental points and system iterations. As a system optimizer, the simulated annealing, which generates a global design solution is utilized. The proposed technique is applied to several numerical examples, and demonstrates the validity and efficiency of the method. With its improved approximation accuracy, the RRSET can contribute to resolve large and complex system design problems under MDO environment.
Keywords
RRSET(Repetitive Response Surface Enhancement Technique); Approximation Technique; Multidisciplinary Design Optimization; Simulated Annealing;
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