Earticle

초록

영어

This paper provides the results on the study of thickness optimization of plates. The objective of this study is to find the optimum thickness distribution of the plates. In particular, both fundamental frequency to be maximized and strain energy to be minimized are respectively considered as the objective function with the volume constraint and the numerical results obtained from both optimization problems are then consistently compared. The computer-aided geometric design (CAGD) such as Coon patch representation is used to represent the thickness distribution of plates. In order to calculate strain energy and natural frequency of the plate, a reliable degenerated shell finite element is adopted. Robust optimization algorithms available in the optimizer DoT are used in the optimization. Finally, square plate is analyzed to provide the
comparative results on optimum thickness distribution of plates according to different essential boundary condition.

목차

Abstract
 1. 서론
 2. 기하학적 모델
 3. 유한요소망의 두께 분포 표현
 4. 구조물의 반응해석
 5. 민감도 해석
 6. 최적화문제정의
 7. 최적화 알고리듬
 8. 판의 변형에너지 최소화를 위한 두께최적화
 9. 판의 진동수 최대화를 위한 두께 최적화
 9. 결론
 참고문헌

저자

• 이상진 [ Lee, Sang Jin | 정회원, 경상대학교 공과대학 건축공학과 조교수, 공학박사 ]
• 김하룡 [ Kim, Ha Ryong | 정회원, 경상대학교 공과대학 건축공학과 석박사통합과정 ]

참고문헌