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Abstract Ship construction involves the assembly of several blocks on a dock. When a block is lifted using a crane, it undergoes deformation. Until now, structural analysis has been applied in a few cases to evaluate the stress on such blocks. Therefore, this study proposes an evaluation method for time- domain stress using 2D flexible multibody dynamics. We adopt the discrete Euler-Lagrange equation to achieve robustness during the numerical integration of problems that involve high stiffness. We formulate the equations of motion of 2D shell elements based on the absolute nodal coordinate formulation, which is an efficient analysis technique for nonlinear and large defor-mation cases. We also derive the two types of kinematic constraints (ball and fixed joints) be-tween the rigid and shell element, which can be attached to an arbitrary point. Based on the theories, we develop the program to build models, including 2D flexible multibody dynamics and several joints, and to solve the equations of motion efficiently. As a result, it is successfully applied to the dynamic analysis of the block turnover by a gantry crane and the block lifting by a floating crane. The von-Mises stresses that change over time are compared to the maximum yield stress and analyzed according to the wave direction.
Publication Date 2021-01-01
Role Corresponding Author
Category SCIE
Impact Factor 3.960

Seung-Ho Ham, Myung-Il Roh, “Time-domain Structural Analysis During Block Turnover and Lifting Using 2D Flexible Multibody Dynamics”, Marine Structures, Vol. 75, pp. 102841.1-26, 2021.01.01


List of Articles
번호 분류 제목 Publication Date
114 International Journal Kyu-Yeul Lee, Myung-Il Roh, "A Hybrid Optimization Method for Multidisciplinary Ship Design", Journal of Ship Technology Research, Vol. 47, No. 4, pp. 181-185, 2000.10.01 file 2000-10-01
113 International Journal Kyu-Yeul Lee, Myung-Il Roh, "An Efficient Genetic Algorithm Using Gradient Information for Ship Structural Design Optimization", Journal of Ship Technology Research, Vol. 48, No. 4, pp. 161-170, 2001.11.01 file 2001-11-01
112 International Journal Kyu-Yeul Lee, Myung-Il Roh, Seonho Cho, "Multidisciplinary Design Optimization of Mechanical Systems Using Collaborative Optimization Approach", International Journal of Vehicle Design, Vol. 25, No. 4, pp. 353-368, 2001.11.01 file 2001-11-01
111 International Journal Kyu-Yeul Lee, Seonho Cho, Myung-Il Roh, "An Efficient Global-Local Hybrid Optimization Method Using Design Sensitivity Analysis", International Journal of Vehicle Design, Vol. 28, No. 4, pp. 300-317, 2002.07.01 file 2002-07-01
110 International Journal Kyu-Yeul Lee, Seong-Nam Han, Myung-Il Roh, "Optimal Compartment Layout Design for a Naval Ship Using an Improved Genetic Algorithm", Marine Technology and SNAME News, Vol. 39, No. 3, pp. 159-169, 2002.07.01 file 2002-07-01
109 International Journal Kyu-Yeul Lee, Seong-Nam Han, Myung-Il Roh, "An Improved Genetic Algorithm for Facility Layout Problems Having Inner Structure Walls and Passages", Computers & Operations Research, Vol. 30, No. 1, pp. 117-138, 2003.01.01 file 2003-01-01
108 International Journal Kyu-Yeul Lee, Won-Joon Lee, Myung-Il Roh, "Development of a Semantic Product Modeling System for Initial Hull Structure in Shipbuilding", Robotics and Computer-Integrated Manufacturing Journal, Vol. 20, No. 3, pp. 211-223, 2004.06.01 file 2004-06-01
107 International Journal Kyu-Yeul Lee, Myung-Il Roh, Hyuk-Su Jeong, "An Improved Genetic Algorithm for Multi-Floor Facility Layout Problems Having Inner Structure Walls and Passages", Computers & Operations Research, Vol. 32, No. 4, pp. 879-899, 2005.04.01 file 2005-04-01
106 International Journal Myung-Il Roh, Kyu-Yeul Lee, "Development of a 3D CAD System for Modeling Hull Structure at the Initial Ship Design Stage", Ships and Offshore Structures, Vol. 1, No. 2, pp. 135-151, 2006.04.01 file 2006-04-01
105 International Journal Myung-Il Roh, Kyu-Yeul Lee, "An Initial Hull Structural Modeling System for Computer-Aided Process Planning in Shipbuilding", Advances In Engineering Software, Vol. 37, No. 7, pp. 457-476, 2006.07.01 file 2006-07-01
104 International Journal Myung-Il Roh, Kyu-Yeul Lee, Seong-Jin Yoo, "An Algorithm for Generating the Hull Structural Analysis Model Using the Seam Information of the Hull Structure at the Initial Design Stage", Journal of Ship and Ocean Technology, Vol. 10, No. 4, pp. 24-33, 2006.12.01 file 2006-12-01
103 International Journal Myung-Il Roh, Kyu-Yeul Lee, Woo-Young Choi, "Rapid Generation of the Piping Model Having the Relationship with a Hull Structure in Shipbuilding", Advances In Engineering Software, Vol. 38, No. 4, pp. 215-228, 2007.04.01 file 2007-04-01
102 International Journal Myung-Il Roh, Kyu-Yeul Lee, "Generation of the 3D CAD Model of the Hull Structure at the Initial Ship Design Stage and Its Application", Computers in Industry, Vol. 58, No. 6, pp. 539-557, 2007.08.01 file 2007-08-01
101 International Journal Myung-Il Roh, Kyu-Yeul Lee, "Generation of the Production Material Information of a Building Block and Simulation of the Block Erection for Computer-Aided Process Planning and Scheduling in Shipbuilding", International Journal of Production Research, Vol. 45, No. 20, pp. 4653-4683, 2007.10.01 file 2007-10-01
100 International Journal Myung-Il Roh, Kyu-Yeul Lee, Woo-Young Choi, Seong-Jin Yoo, "Improvement of Ship Design Practice Using a 3D CAD Model of a Hull Structure", Robotics and Computer-Integrated Manufacturing Journal, Vol. 24, No. 1, pp. 105-124, 2008.02.01 file 2008-02-01
99 International Journal Sang-Uk Lee, Myung-Il Roh, Ju-Hwan Cha, Kyu-Yeul Lee, "Ship Compartment Modeling Based On a Non-manifold Polyhedron Modeling Kernel", Advances In Engineering Software, Vol. 40, No. 5, pp. 378-388, 2009.05.01 file 2009-05-01
98 International Journal Ju-Hwan Cha, Myung-Il Roh, Kyu-Yeul Lee, "Combined Discrete Event and Discrete Time Simulation Framework and Its Application to the Block Erection Process in Shipbuilding", Advances In Engineering Software, Vol. 41, No. 4, pp. 656-665, 2010.04.01 file 2010-04-01
97 International Journal John-Kyu Hwang, Myung-Il Roh, Kyu-Yeul Lee, "Detailed Design and Construction of the Hull of an FPSO(Floating, Production, Storage, and Off-loading unit)", Ships and Offshore Structures, Vol. 5, No. 2, pp. 93-104, 2010.06.01 file 2010-06-01
96 International Journal Myung-Il Roh, Kyu-Yeul Lee, "Optimal Scheduling of Block Lifting in Consideration of the Minimization of Traveling Distance While Unloaded and Wire and Shackle Replacement of a Gantry Crane", Journal of Marine Science and Technology, Vol. 15, No. 2, pp. 190-200, 2010.06.01 file 2010-06-01
95 International Journal Ju-Hwan Cha, Myung-Il Roh, Kyu-Yeul Lee, "Integrated Simulation Framework for the Process Planning of Ships and Offshore Structures", Robotics and Computer-Integrated Manufacturing Journal, Vol, 26, No. 5, pp. 430-453, 2010.10.01 file 2010-10-01
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