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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
35 International Conference Myung-Il Roh, Seong-Ho Seo, Hyun-Kyoung Shin, Nam-Kug Ku, Sol Ha, Ki-Su Kim, "Simplified Model for the Weight Estimation of Floating Offshore Plant Using the Statistical Method", Proceedings of OMAE 2014, San Francisco, USA, pp. 1-8, 2014.06.08-13 file 2014-06-10
34 International Conference Nam-Kug Ku, Se-Yong Jeong, Myung-Il Roh, Hyun-Kyoung Shin, Sol Ha, Jung-Woo Hong, "Layout Method of a FPSO Using the Optimization Technique", Proceedings of OMAE 2014, San Francisco, USA, pp. 1-11, 2014.06.08-13 file 2014-06-10
33 International Conference Sol Ha, Nam-Kug Ku, Myung-Il Roh, Xing Li, "Evacuation, Escape and Rescue EER Analysis of Offshore Plant Based on Human Behavior Model", Proceedings of OMAE 2014, San Francisco, USA, pp. 1-7, 2014.06.08-13 file 2014-06-10
32 International Conference Sol Ha, Nam-Kug Ku, Myung-Il Roh, Ki-Su Kim, Seung-Ho Ham, Xing Li, Jung-Woo Hong, Hye-Won Lee, "DEVS-based Scenario Manager of Multibody Dynamics Simulator for Shipbuilding Production Process (WIP)", Proceedings of Spring Simulation Multi-Conference 2014, Tampa, USA, pp. 358-363, 2014.04.13-16 file 2014-04-16
31 International Conference Nam-Kug Ku, Sol Ha, Myung-Il Roh, "Crane Modeling and Simulation in Offshore Structure Building Industry", Proceedings of ICCMS(International Conference on Computer Modeling and Simulation) 2014, Barcelona, Spain, pp. 1-7, 2014.02.20-21 file 2014-02-20
30 International Conference Sol Ha, Namkug Ku, Myung-Il Roh, Ju-Hwan Cha, "Reliability Analysis Method Using Dynamic Reliability Block Diagram Based on DEVS Formalism," Proceedings of the 13th International Conference on Systems Simulation(AsiaSim 2013), Singapore, pp. 219-230, 2013.11.06-08. file 2013-11-06
29 International Conference Sol Ha, Nam-Kug Ku, Myung-Il Roh, "Ontological Modeling and Process Simulation of LNG FPSO Liquefaction Cycle based on DEVS Formalism", Proceedings of ISOPE(International Society of Offshore and Polar Engineers) 2013, Alaska, USA, pp. 950-958, 2013.06.30-07.05 file 2013-06-30
28 International Conference Nam-Kug Ku, Sol Ha, Myung-Il Roh, Kyu-Yeul Lee, "Development of a Kernel for Dynamic Analysis of Various Types of Multi-Crane in Shipyard", Proceedings of ISOPE(International Society of Offshore and Polar Engineers) 2013, Alaska, USA, pp. 693-701, 2013.06.30-07.05 file 2013-06-30
27 International Conference Sang-Rai Cho, Jong-Min Kim, Young-Hun Kim, Joo-Sung Lee, Myung-Il Roh, "Towards More Rational Design of Ship Structures against Collisions", Proceedings of ICCGS(International Conference on Collision and Grounding of Ships) 2013, Trondheim, Norway, pp. 187-195, 2013.06.17-19 file 2013-06-17
26 International Conference Tae-Sub Um, Jeong-Hoon Park, Myung-Il Roh, "Determination of Optimal Principal Dimensions of the Hatch Cover for Lightening of a Bulk Carrier", Proceedings of ISGMA(International Symposium on Green Manufacturing and Applications) 2012, Jeju, Korea, pp. 1-7, 2012.08.27-29 file 2012-08-27
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