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Abstract Ships and offshore plants are divided into several blocks and then erected by using one or more cranes on the dock through the operation called block erection. Because the blocks contain several outfitting installed before the erection, collision during the operation can occur and this is one of main reasons to delay the production of the ships and offshore plants. Moreover, in case of ships including internal tanks such as LPG carrier or LNG carrier, the tanks should be erected inside the hull structure which can cause collision between them during the erection. Therefore, the collision should be carefully checked before the actual operation. Even though the collision is checked statically, the unexpected collision can occur due to various external or environmental loads. Thus, collision analysis based on multibody system dynamics is performed in this study. Generally, there are two methods for the collision analysis; the impulse response method and the force-based method. Traditionally, the impulse response method has been commonly used in the collision analysis. However, it cannot be used with a multibody system because the method calculates the velocity of a single body directly. Furthermore, collision forces between collided objects cannot be calculated in the impulse response method. Therefore, in this study, the force-based method is applied to consider various collisions in the multibody system and to calculate collision forces. To evaluate the effectiveness of the method, it is applied to the erection of a LPG tank of a LPG carrier by using a floating crane. As a result, it can be seen that collisions between the tank and the hull structure during the erection are detected and collision forces are accurately calculated.
Publication Date 2016-10-12

Hye-Won Lee, Myung-Il Roh, Seung-Ho Ham, “Dynamics-based Collision Analysis for Block Erection in Shipyard”, Proceedings of the 30th Asian-Pacific TEAM(Technical Exchange and Advisory Meeting on Marine Structures) 2016, Mokpo, Korea, pp. 270-273, 2016.10.10-13


List of Articles
번호 분류 제목 Publication Date
30 International Conference Ji-Hyun Hwang, Ju-Hwan Cha, Seung-Ho Ham, Bo-Ram Kim, Myung-Il Roh, Kyu-Yeul Lee, "Establishment of Offshore Process FEED Method for Oil-Based FPSO Topsides Systems", Proceedings of ISOPE 2009, Osaka, Japan, pp. 144-150, 2009.06.21-26 file 2009-06-21
29 International Conference Ji-Hyun Hwang, Joon-Ho Min, Young-Joo Ahn, Hee-Chang Kim, Myung-Il Roh, Kyu-Yeul Lee, "Optimized Methodology to Build an Integrated Solution to Offshore Topside Process Engineering", Proceedings of ISOPE 2008, Vancouver, Canada, 2008.07.06-11 file 2008-07-06
28 International Conference Jeong-Woo Hong, Seung-Ho Ham, Luman Zhao, Xing Li, Sol Ha, Myung-Il Roh, "Offshore Installation of Subsea Equipment Considering Elasticity of the Crane Boom in Harsh Environment", Proceedings of ISOPE 2015, Hawaii, USA, 2014.06.21-26 file 2015-06-23
27 International Conference Jeong-Ho Park, Myung-Il Roh, Hye-Won Lee, Jisang Ha, Yeong-Min Jo, Nam-Sun Son, "Obstacle Detection and Tracking of Unmanned Surface Vehicles Using Multi-view Images in Marine Environment", Proceedings of ICCAS 2022, Yokohama, Japan, 2022.09.13-15 2022-09-13
26 International Conference Jeong-Ho Park, Myung-Il Roh, Hye-Won Lee, Jisang Ha, Yeong-Min Jo, Nam-Sun Son, "Detection and Tracking Methods of Maritime Obstacles Using Multiple Cameras", Proceedings of ICDM 2022, Siheung, Korea, 2022.04.28-29 2022-04-28
25 International Conference In-Chang Yeo, Myung-Il Roh, Hye-Won Lee, Donghun Yu, "A Method for Automatic Berthing of a Ship Using LIDAR", Proceedings of 10th PAAMES and AMEC 2023, Kyoto, Japan, 2023.10.18-20 file 2023-10-19
24 International Conference In-Chang Yeo, Myung-Il Roh, Hye-Won Lee, "An Optimization Method of the Surround-View Camera System for Automatic Berthing of Ships", Proceedings of G-NAOE 2022, Changwon, Korea, 2022.11.06-10 2022-11-06
23 International Conference 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 2014 file 2014-10-15
22 International Conference Hye-Won Lee, Myung-Il Roh, Seung-Ho Ham, Do-Hyun Chun, "Controller Design of a Gantry Crane for the Safe Erection of Blocks in Shipyards", Proceedings of PRADS 2019, Yokohama, Japan, 2019.09.22-26 file 2019-09-22
21 International Conference Hye-Won Lee, Myung-Il Roh, Seung-Ho Ham, Bo-Woo Nam, "Coupled Analysis of the LNG Offloading Operation Based on Multibody Dynamics", Proceedings of PRADS 2022, Dubrovnik, Croatia, 2022.10.09-13 file 2022-10-09
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