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Abstract This study is concerned with the shape optimization of structural members frequently found in critical area of ship and offshore structures, that is, highly stress zone. Isogeometry analysis has been introduced by Prof. Hughes in 2005, and is known to be the very efficient way to integrate the geometric modeling (CAD) and computational analysis (CAE). This can be accomplished by directly using the geometric modeling by NURBS (Non-Uniform Rational Basis Spline). In this study an efficient computer code adopting the isogeometry concept has been developed for the structural analysis, in which CAD information can be directly used in the finite element modeling. The present results are compared with those by using the commercial package, that is, MSC/NASTRAN. The present isogeometric analysis procedure has been integrated with the optimization procedure to deal with the optimization problem found in the context of structural mechanics. The present system has been successfully applied to the shape optimization of cantilever structure having bracket. From the present study, it can be seen the validity of the present approach and computer codes developed in this study. This paper ends with some discussions about the practical usefulness of the present approach which is based on isogeometry analysis, and extension of the present study. Results of the further studies will be presented at the judicial proceedings and journals.
Publication Date 2010-08-23

Yoon-Nam An, Joo-Sung Lee, Myung-Il Roh, Bum-Sang Yoon, Kyoung-Sik Chang, "Shape Optimization of Structural Member Based on Isogeometry Concept", Proceedings of the 24th Asian-Pacific TEAM(Technical Exchange and Advisory Meeting on Marine Structures) 2010, Vladivostok, Russia, pp. 343-348, 2010.08.23-26


List of Articles
번호 분류 제목 Publication Date
506 Domestic Conference 임중현, 이상욱, 노명일, 이규열, "다면체를 이용한 선박 구획 계산에 관한 연구", 1999년도 대한조선학회 춘계학술발표회, 거제, pp. 103-106, 1999.04.22-23 file 1999-04-22
505 Domestic Conference 노명일, 이규열, "협동 최적화 방법에 의한 다분야 최적화 기법에 관한 연구", 1999년도 대한조선학회 추계학술발표회, 대전, pp. 159-164, 1999.11.11-12 file 1999-11-11
504 Domestic Conference 노명일, 이규열, "협동 최적화 접근방법에 의한 다분야 최적 설계에 관한 연구", 2000년도 한국CAD/CAM학회 학술발표회, 서울, pp. 163-170, 2000.02.11 file 2000-02-11
503 International Conference Kyu-Yeul Lee, Seon-Ho Cho, Myung-Il Roh, "An Efficient Global-Local Hybrid Optimization Method Using Design Sensitivity Analysis", Proceedings of OptiCon 2000, Newport Beach, USA, pp. 1-13, 2000.10.26-27 file 2000-10-26
502 Domestic Conference 한성남, 이규열, 노명일, "개선된 유전자 알고리즘을 이용한 최적 공간 배치 설계에 관한 연구", 2001년도 한국CAD/CAM학회 학술발표회, 서울, pp. 253-260, 2001.02.09 file 2001-02-09
501 Domestic Conference 이규열, 노명일, "Hybrid Optimization 방법과 CORBA를 이용한 다분야 최적 설계에 관한 연구", 2001년도 한국항공우주학회 학술발표회, 진주, pp. 590-593, 2001.04.14 file 2001-04-14
500 Domestic Conference 한성남, 노명일, 이규열, "최적 공간 배치 설계를 위한 개선된 유전자 알고리즘에 관한 연구", 2001년도 한국경영과학회/대한산업공학회 춘계학술발표회, 양양, pp. 239, 2001.04.27-28 file 2001-04-27
499 International Conference Kyu-Yeul Lee, Myung-Il Roh, Hang-Soon Choi, Woo-Jae Seong, "Development of Hybrid Optimization Method and Its Application to Ship Design Optimization", Proceedings of Pacific 2002 International Maritime Conference, Sydney, Australia, 2002.01.29-31 file 2002-01-29
498 Domestic Conference 이원준, 이규열, 권오환, 노명일, "의미론적 제품 데이터 모델 기반 초기 선체 구조 CAD 시스템 개발", 2002년도 한국CAD/CAM학회 학술발표회, 서울, pp. 75-87, 2002.01.30 file 2002-01-30
497 Domestic Conference 정혁수, 이규열, 노명일, "다중 갑판을 고려한 함정의 최적 격실 배치 설계에 관한 연구", 2002년도 대한조선학회 춘계학술발표회, 부산, pp. 71-78, 2002.04.18-19 file 2002-04-18
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