Sensitivity Validation Technique for Sequential Kriging Metamodel

순차적 크리깅 메타모델의 민감도 검증법

  • Huh, Seung-Kyun (Dept. Automotive Engineering, College of Engineering, Hanyang Univ.) ;
  • Lee, Jin-Min (Dept. Automotive Engineering, College of Engineering, Hanyang Univ.) ;
  • Lee, Tae-Hee (Dept. Automotive Engineering, College of Engineering, Hanyang Univ.)
  • 허승균 (한양대학교 공과대학 자동차공학과) ;
  • 이진민 (한양대학교 공과대학 자동차공학과) ;
  • 이태희 (한양대학교 공과대학 자동차공학과)
  • Received : 2011.12.21
  • Accepted : 2012.05.24
  • Published : 2012.08.01


Metamodels have been developed with a variety of design optimization techniques in the field of structural engineering over the last decade because they are efficient, show excellent prediction performance, and provide easy interconnections into design frameworks. To construct a metamodel, a sequential procedure involving steps such as the design of experiments, metamodeling techniques, and validation techniques is performed. Because validation techniques can measure the accuracy of the metamodel, the number of presampled points for an accurate kriging metamodel is decided by the validation technique in the sequential kriging metamodel. Because the interpolation model such as the kriging metamodel based on computer experiments passes through responses at presampled points, additional analyses or reconstructions of the metamodels are required to measure the accuracy of the metamodel if existing validation techniques are applied. In this study, we suggest a sensitivity validation that does not require additional analyses or reconstructions of the metamodels. Fourteen two-dimensional mathematical problems and an engineering problem are illustrated to show the feasibility of the suggested method.


Sensitivity;Validation;Sequential Kriging Metamodel;Bogie Frame


Grant : 공간-시간 통계적 모형 기반 최적설계 기법 연구

Supported by : 한국연구재단


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