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Abstract So far, in the motion analysis, wire ropes have been modeled by incompressible springs which only exert a force when it is extended. Thus, we cannot consider their properties like real wire ropes, such as twisting and bending. Moreover, we have often seen that they generated an unstable motion, and sometimes stiffness problems, especially when the spring coefficient is very large and the mass is not large enough. Therefore, to reflect not only stretching, but also twisting and bending, we adapt the constraint-based wire rope model which discretizes the wire rope as small elements having length and angular constraints. In addition, we use discrete vairational method which is proven to be numerically stable for the case of linear holonomic constraints. As a result, the equation of motion of a floating crane and a heavy load connected by constraint-based wire rope is formulated. Linearized hydrodynamic and hydrostatic forces are considered as the external forces which induce the floating crane motion. It is confirmed that the motions of a floating crane and a heavy load using constraint-based wire rope are stable compared with the motions using incompressible spring.
Publication Date 2014-10-15
Hye-Won Lee, Seung-Ho Ham, Jeong-Woo Hong, Sol Ha, Myung-Il Roh, "Motion Analysis of a Heavy Load Suspended by a Floating Crane Using Constraint-based Wire Rope based on Discrete Variational Method", Proceedings of the 28th Asian-Pacific TEAM(Technical Exchange and Advisory Meeting on Marine Structures) 2014, Istanbul, Turkey, pp. 450-456, 2014.10.13-16

List of Articles
번호 분류 제목 Publication Date
196 International Conference Luman Zhao, Myung-Il Roh, Seung-Ho Ham, "Hardware-In-the-Loop Simulation for a Heave Compensator of an Offshore Support Vessel", Proceedings of OMAE 2016, Busan, Korea, pp. 1-5, 2016.06.19-24 file 2016-06-20
195 International Conference Ki-Su Kim, Myung-Il Roh, Sung-Kyoon Kim, "An Arrangement Design Framework for Ships and Offshore Plants Based on Expert System and Optimization Technique", Proceedings of OMAE 2016, Busan, Korea, pp. 1-5, 2016.06.19-24 file 2016-06-20
194 International Conference Seung-Ho Ham, Myung-Il Roh, Hye-Won Lee, Dong-Hoon Jeong, "Physics-based Simulation Considering Collision During Production and Installation of Ships and Offshore Plants", Proceedings of ICCGS 2016, Ulsan, Korea, 2016.06.15-18 file 2016-06-16
193 Conference Chairman 설계 및 법규 (A2, A3), 2016년도 대한조선학회 춘계학술발표회, 부산, 2016.05.19-20 2016-05-20
192 Domestic Conference 이성민, 노명일, 김기수, 함승호, "최적화 기법을 이용한 블록의 러그 배치 설계 방법", 2016년도 대한조선학회 춘계학술발표회, 부산, pp. 417, 2016.05.19-20 file 2016-05-20
191 Domestic Conference 김성훈, 노명일, 김기수, "하둡과 R 언어를 이용한 조선 해양 분야에서의 빅데이터 활용 연구", 2016년도 대한조선학회 춘계학술발표회, 부산, pp. 323, 2016.05.19-20 file 2016-05-20
190 Domestic Conference 정동훈, 노명일, 함승호, 이찬영, "함정 설계 단계에서의 성능 분석을 위한 시뮬레이션 프레임워크", 2016년도 대한조선학회 춘계학술발표회, 부산, pp. 326, 2016.05.19-20 file 2016-05-20
189 Domestic Conference 함승호, 노명일, 조로만, "통합 시뮬레이션 기법을 활용한 해양 작업 지원선 크레인의 AHC (Active Heave Compensator) HIL (Hardware-In-the-Loop) 시뮬레이션", 2016년도 대한조선학회 춘계학술발표회, 부산, pp. 335, 2016.05.19-20 file 2016-05-20
188 Domestic Conference 노명일, 김기수, 이성민, 함승호, "해양 프로젝트에서의 중량 추정의 불확실성에 대한 연구", 2016년도 대한조선학회 춘계학술발표회, 부산, pp. 6-8, 2016.05.19-20 file 2016-05-19
187 International Conference Myung-Il Roh, Seung-Ho Ham, Ki-Su Kim, Luman Zhao, "Integrated Simulation Based on Multiphysics Analysis, Virtual Reality, and Hardware for Offshore Installation, Operation, and Maintenance", OTC Asia 2016, 2016.03.22-26 file 2016-03-23
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