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2015.08.25 13:13

Seung-Ho Ham, Myung-Il Roh, Hye-Won Lee, Sol Ha, "Multibody Dynamic Analysis of a Heavy Load Suspended by a Floating Crane with Constraint-based Wire Rope", Ocean Engineering, Vol. 109, pp. 145-160, 2015.11.15

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Abstract In this study, we derived a Discrete Euler–Lagrange (DEL) equation to represent the motion of a multibody system, in which many bodies are connected physically by joints or wire ropes. By discretizing and re-formulating the traditional Euler–Lagrange equation, we obtained a discrete time integrator, called the Stömer–Verlet method. Similarly, we discretized the equations of constraints of joints and wire ropes by the midpoint rule. Then, we adapted regularization and stabilization methods, to overcome numerical instability and the stiffness problem. The DEL equation can be formulated automatically, by defining the equations of joint constraints and their derivatives. In addition, the stretching of the wire rope is mathematically modeled as constraints for stability. To apply the DEL equation to a floating vessel, hydrostatic and hydrodynamic forces are considered as external forces. We applied the DEL equation to a mass–spring system with the large spring coefficient. And we tested a spring pendulum modeled by a constraint-based wire rope. Despite the large spring coefficient, the DEL equation with the constraint-based wire rope shows relatively stable motion. We tested the automatic formulation by three-dimensional multiple pendulums. Finally, we simulated a floating crane and a heavy load connected by constraint-based wire rope, based on set of regular waves with different wave heights, directions and periods.
Publication Date 2015-11-15
Role Corresponding Author
Category SCI
Impact Factor 1.351

Seung-Ho Ham, Myung-Il Roh, Hye-Won Lee, Sol Ha, "Multibody Dynamic Analysis of a Heavy Load Suspended by a Floating Crane with Constraint-based Wire Rope", Ocean Engineering, Vol. 109, pp. 145-160, 2015.11.15

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  1. Luman Zhao, Myung-Il Roh, Seung-Ho Ham, "Anti-Sway Control of the Crane on an Offshore Support Vessel Based on the Hardware-In-The-Loop Simulation", International Journal of Offshore and Polar Engineering, Vol. 28, No. 2, pp. 182-189, 2018.06.01

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  2. Seung-Ho Ham, Myung-Il Roh, Ju-Sung Kim, "Numerical Analysis of Wreck Removal Based on Multibody System Dynamics", Journal of Marine Science and Technology, Vol. 23, No. 3, pp. 521-535, 2018.09.01

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  3. Ki-Su Kim, Myung-Il Roh, Sung-Min Lee, Han-Sung Kim, Hyunsik Ahn, "Weight-estimation Method of FPSO Topsides Considering the Work Breakdown Structure", Journal of Offshore Mechanics and Arctic Engineering, Vol. 40, No. 1, pp. 1-10, 2018.02.01

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  4. Dong-Hoon Jeong, Myung-Il Roh, Seung-Ho Ham, “Case Study of Detection and Maneuvering Performance of Naval Ships Using Engagement Simulation of Engineering Level”, Ocean Systems Engineering, Vol. 7, No. 3, pp. 247-273, 2017.09.01

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  5. Seung-Ho Ham, Myung-Il Roh, Jung-Woo Hong, “Dynamic Effect of a Flexible Riser in a Fully Connected Semisubmersible Drilling Rig Using the Absolute Nodal Coordinate Formulation”, Journal of Offshore Mechanics and Arctic Engineering, 2017.10.01

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  6. Seung-Ho Ham, Myung-Il Roh, Hye-Won Lee, Jin-Wuk Hong, Hong-Rae Lee, "Development and Validation of a Simulation-based Safety Evaluation Program for a Mega Floating Crane", Advances In Engineering Software, Vol. 112, pp. 101-116, 2017.10.01

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  7. Seong-Hoon Kim, Myung-Il Roh, Ki-Su Kim, Min-Jae Oh, “Big Data Platform Based on Hadoop and Application to Weight Estimation of FPSO Topside”, Journal of Advanced Research in Ocean Engineering, Vol. 3, No. 1, pp. 32-40, 2017.03.01

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  8. Sung-Min Lee, Myung-Il Roh, Ki-Su Kim, Seung-Ho Ham, "Optimum Design of Lug Arrangement Based on Static and Dynamic Analyses for Block Lifting", Journal of Ship Production and Design, Vol. 34, No. 2, pp. 119-133, 2018.05.01

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  9. Dong-Hoon Jeong, Myung-Il Roh, Seung-Ho Ham, Chan-Young Lee, “Performance Analyses of Naval Ships Based on Engineering Level of Simulation at the Initial Design Stage”, IJNAOE, Vol. 9, No. 4, pp. 446-459, 2017.07.01

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  10. Sung-Kyoon Kim, Myung-Il Roh, Ki-Su Kim, “Evaluation of Feasibility Index in the Arrangement Design of an Offshore Topside based on the Automatic Transformation of Experts’ Knowledge and the Fuzzy Logic”, Ocean Engineering, Vol. 130, 2017.01.15

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  11. Sung-Kyoon Kim, Myung-Il Roh, Ki-Su Kim, “Arrangement Method of Offshore Topside Based on an Expert System and Optimization Technique”, Journal of Offshore Mechanics and Arctic Engineering, Vol. 139, No. 2, pp. 1-19, 2017.04.01

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  12. Ju-Sung Kim, Myung-Il Roh, Seung-Ho Ham, “A Method for Intermediate Flooding and Sinking Simulation of a Damaged Floater in Time Domain”, Journal of Computational Design and Engineering, Vol. 4, No. 1, pp. 1-13, 2017.01.01

    CategoryInternational Journal
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  13. John-Kyu Hwang, Myung-Il Roh, Ju-Hwan Cha, “Design Modification of a Damaged Free-Fall Lifeboat for FPSO Through Free-Fall Tests”, International Journal of Offshore and Polar Engineering, Vol. 26, No. 4, pp. 417-422, 2016.12.01

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  14. Dong-Hoon Jeong, Myung-Il Roh, Seung-Ho Ham, "Lifting Simulation of an Offshore Supply Vessel Considering Various Operating Conditions", Advances in Mechanical Engineering, Vol. 8, No. 6, pp. 1-13, 2016.06.16

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  15. Ki-Su Kim, Myung-Il Roh, "A Submarine Arrangement Design Program Based on the Expert System and the Multistage Optimization", Advances In Engineering Software, Vol. 98, No. 97-111, 2016.08.01

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  16. Hye-Won Lee, Myung-Il Roh, Seung-Ho Ham, "Block Turnover Simulation Considering the Interferences between the Block and Wire Ropes in Shipbuilding", Automation in Construction, Vol. 67, pp. 60-75, 2016.07.01

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  17. Jeong-Woo Hong, Myung-Il Roh, Seung-Ho Ham, Sol Ha, "Dynamic Simulation of Subsea Equipment Installation Using an Offshore Support Vessel Based on Flexible Multibody System Dynamics", Journal of Marine Science and Technology (Taiwan), Vol. 24, No. 4

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  18. Sol Ha, Nam-Kug Ku, Myung-Il Roh, "Event-based Scenario Manager for Multibody Dynamics Simulation of Heavy Load Lifting Operations in Shipyards", International Journal of Naval Architecture and Ocean Engineering, Vol. 8, No. 1, pp. 83-101, 2016.01.01

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  19. Seung-Ho Ham, Myung-Il Roh, Hye-Won Lee, "Simulation of Load Lifting with Equalizers Used in Shipyards", Automation in Construction, Vol. 61, pp. 98-111, 2016.02.01

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  20. Seung-Ho Ham, Myung-Il Roh, Hye-Won Lee, Sol Ha, "Multibody Dynamic Analysis of a Heavy Load Suspended by a Floating Crane with Constraint-based Wire Rope", Ocean Engineering, Vol. 109, pp. 145-160, 2015.11.15

    CategoryInternational Journal
    Read More
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