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논문 기본 정보

자료유형
학술대회자료
저자정보
정성기 (한국항공우주산업) 김지홍 (한국항공우주산업)
저널정보
한국전산유체공학회 한국전산유체공학회 학술대회논문집 한국전산유체공학회 2013년도 춘계학술대회 논문집
발행연도
2013.5
수록면
234 - 237 (4page)

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An engineering design needs many trade-off studies and an analysis for interrelationship among design parameters to simultaneously fulfil various requirements. Further, in modern aircraft designs, the multi-objective optimization problem is emerged to meet the maximum lift, lift-to-drag ratio and others. Moreover a parameter-based investigation for performance improvement is essential to satisfy further requirements. As this purpose, the Adaptive Range Multi-Objective Genetic Algorithm code was developed, and an interrelationship among design parameters Is analyzed using the Self-Organizing Map. In order to achieve the better maximum lift and lift-to-drag ratio than reference airfoil at landing and cruise conditions, maximum lift coefficient and lift-to-drag ratio were chosen as object functions. Furthermore, the PARSEC method reflecting geometrical properties of airfoil was adopted to generate airfoil shapes. Finally, two airfoils, which show better aerodynamic performance that a reference airfoil, were chosen. as a result, maximum lift coefficient and lift-to-drag ratio were increased of 3.32% and 2.26% for first candidate airfoil and 2.48% and 1.69% for second candidate airfoil. Also interrelationship among design parameters for all candidates is analyzed using the Self-Organizing Map.

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UCI(KEPA) : I410-ECN-0101-2014-420-002915565