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Abstract In shipyards, ships and offshore structures are constructed by joining several blocks on the dock. For this, a gantry crane generally conduct block erection operation including the lifting, turn-over, and lowering procedure. During the erection operation, the operator controls the trolleys, crane girder, and wire ropes to control the motion of the block to the certain trajectory and the orientation. The gantry crane lifting a block is an underactuated mechanical system, which has more degrees of freedom than control inputs. Therefore, the traditional control theories are not applicable to the operations of block erection. In this study, a method for the controller design of the gantry crane is proposed for the trajectory tracking control of the block. Then, the simulation based on the multibody dynamics is performed to analyze the motions of the crane and the block. The result has shown that the motion of the block is successfully controlled during the operation.
Publication Date 2019-09-22
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 International Symposium on PRADS(Practical Design of Ships and Other Floating Structures) 2019, Yokohama, Japan, 2019.09.22-26


  1. 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

    CategoryInternational Conference
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  2. Hye-Won Lee, Myung-Il Roh, Ki-Su Kim, Kuk-Jin Kang, Seong-Yeob Jung, "Arctic Sea Route Planning Based on POLARIS Rule", Proceedings of ISOPE 2019, Honolulu, Hawaii, pp. 875-877, 2019.06.16-21

    CategoryInternational Conference
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  3. Hye-Won Lee, Myung-Il Roh, Seung-Ho Ham, "Control of the Underactuated Gantry Crane for the Block Erection Operation in the Shipyard", MIM 2019, Berlin, Germany, 2019.08.28-30

    CategoryInternational Conference
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  4. Jong-Hyeok Lee, Myung-Il Roh, Jin-Hyeok Kim, Sung-Jun Lee, Seung-Ho Ham, "Development of a Ship Navigation Simulator Based on Digital Twin Technology", Proceedings of ACDDE 2019, Penang, Malaysia, pp. 245, 2019.07.07-10

    CategoryInternational Conference
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  5. Sung-Jun Lee, Myung-Il Roh, Min-Jae Oh, Youngsoo Seok, Won-Jae Lee, June-Beom Lee, Hyun Soo Kim, "Image-based Object Detection and Tracking Method for Ship Navigation," Proceedings of ICCAS 2019, Rotterdam, Netherlands, pp. 89-92, 2019.09.24-26

    CategoryInternational Conference
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  6. Min-Jae Oh, Myung-Il Roh, Young-Soo Seok, and Sung-Jun Lee, "Optimization of a Ship Hull Form using Deep Learning", Proceedings of ACDDE 2019, Penang, Malaysia, 2019.07.07-10

    CategoryInternational Conference
    Read More
  7. Do-Hyun Chun, Myung-Il Roh, Seung-Ho Ham, Hoon-Kyu Oh, Sang-Ok Lee, "Optimum Layout Design of Wedges of Panel for an LNG Tank Considering Amount of Resin Ropes", Proeedings of ISOPE 2019, Honolulu, Hawaii, pp. 1289-1292, 2019.06.16-21

    CategoryInternational Conference
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  8. Do-Hyun Chun, Myung-Il Roh, Hye-Won Lee, Seung-Ho Ham, "A Crane Movement Control for Stability of Block Erection Based on Deep Reinforcement Learning", MIM 2019, Berlin, Germany, 2019.08.28-30

    CategoryInternational Conference
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  9. Luman Zhao, Myung-Il Roh, Hye-Won Lee, Do-Hyun Chun, Sung-Jun Lee, "A Collision Avoidance Method of Multi-ships Based on Deep Reinforcement Learning Considering COLREGs," Proceedings of ICCAS 2019, Rotterdam, Netherlands, pp. 85-88, 2019.09.24-26

    CategoryInternational Conference
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  10. Jisang Ha, Myung-Il Roh, Jong-Hyeok Lee, Jin-Hyeok Kim, Min-Chul Kong, Seung-Ho Ham, "Integrated Ship Remote Operating System Based on Digital Twin Technology", Proceedings of TEAM 2019, Tainan, Taiwan, pp. 106, 2019.10.14-17

    CategoryInternational Conference
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