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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.12
- 수록면
- 32 - 40 (9page)
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초록· 키워드
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Efficient Global Optimization (EGO) method is a global optimization technique which can select the next sample point automatically by infill sampling criteria (ISC) and search for the global minimum with less samples than what the conventional global optimization method needs. ISC function consists of the predictor and mean square error (MSE) provided from the kriging model which is a stochastic metamodel. Also the constrained EGO method can minimize the objective function dealing with the constraints under EGO concept. In this study the constrained EGO method applied to the RAE2822 airfoil shape design formulated with the constraint. But the noisy CFD data caused the kriging model to fail to depict the true function. The distorted kriging model would make the EGO deviate from the correct search. This distortion of kriging model can be handled with the interpolation(p=free) kriging model. With the interpolation(p=free) kriging model, however, the search of EGO solution was stalled in the narrow feasible region without the chance to update the objective and constraint functions. Then the accuracy of EGO solution was not good enough. So the three-step search method was proposed to obtain the accurate global minimum as well as prevent from the distortion of kriging model for the noisy constrained CFD problem.
목차
1. 서론
2. EGO 방법
3. 구속조건을 고려한 EGO 방법
4. 구속조건이 있는 RAE2822 최적설계
5. 결론
참고문헌
참고문헌 (18)
참고문헌 신청
1. [학술대회논문] - Ball, D / 2009 / Recent Applications of CFD to the Design of Boeing Commercial Transports / HPC User Forum
2. [학술대회논문] - Bae, H.G. / 2011 / Airfoil Shape Design Using EGO Methods / 2011 KSAS spring conference : 754 ~ 761
3. [학술지(정기간행물)] - Jones, D.R / 1998 / Efficient Global Optimization of Expensive Black-Box Functions / Journal of Global Optimization 13 (4) : 445 ~ 492
4. [학위논문] - Schonlau, M / 1997 / Computer Experiments and Global Optimization / 박사
5. [학술대회논문] - Sasena, M.J. / 2000 / Metamodeling Sampling Criteria in a Global OptimizationFramework / 8th AIAA/USAF/NASA/ISSMO Symposium onMultidisciplinary Analysis and Optimization
2. [학술대회논문] - Bae, H.G. / 2011 / Airfoil Shape Design Using EGO Methods / 2011 KSAS spring conference : 754 ~ 761
3. [학술지(정기간행물)] - Jones, D.R / 1998 / Efficient Global Optimization of Expensive Black-Box Functions / Journal of Global Optimization 13 (4) : 445 ~ 492
4. [학위논문] - Schonlau, M / 1997 / Computer Experiments and Global Optimization / 박사
5. [학술대회논문] - Sasena, M.J. / 2000 / Metamodeling Sampling Criteria in a Global OptimizationFramework / 8th AIAA/USAF/NASA/ISSMO Symposium onMultidisciplinary Analysis and Optimization
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