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Abstract Ship-mounted cranes are widely used in transportation and installation of heavy payloads on the seabed. It needs to meet rigorous requirements for efficiency and safety in severe sea conditions, and the unexpected motion of the crane due to sea waves makes it even harder to achieve the requirements. To prevent this, anti-sway control is used to minimize the motion of suspended payloads regardless of the ship’s motion. It is proposed here to use the adaptive control technique to control the sway motion of a knuckle boom crane. Using the augmented formulation for multibody systems dynamics, a nonlinear model of a knuckle boom crane system with a flexible cable mounted on the OSV is obtained. And it can be considered as a spherical pendulum attached to a three-link manipulator, whose actuators can be controlled and joint angles can be obtained. The control objective is to maintain the payload position while reducing the sway motion of payload in harsh weather and sea conditions.
In this study, a three-dimensional model of a knuckle boom crane on an OSV is implemented for the dynamic analysis. The case study is to transfer a subsea manifold by the knuckle boom crane in regular waves. Furthermore, a comparative study between uncontrolled and controlled results of the control was performed. Simulation results are included to demonstrate that the proposed control algorithm reduces the impact of the disturbance in harsh sea conditions.
Publication Date 2017-04-20

조로만, 노명일, 함승호, "해상 작업을 위한 다관절 크레인의 좌우 동요 저감 설계에 관한 연구", 2017년도 대한조선학회 춘계학술발표회, 부산, pp. 238-239, 2017.04.19-20

List of Articles
번호 분류 제목 Publication Date
405 International Conference 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 file 2019-07-08
404 International Conference Ju-Hwan Cha, Myung-Il Roh, Seung-Ho Ham, Kyu-Yeul Lee, Kwang Phil Park, Heung Won Suh, "Development of an Integrated Simulation Framework and Its Application to Shipbuilding Process Planning", Proceedings of ICCAS(International Conference on Computer Applications in Shipbuilding) 2007, Portsmouth, UK, pp. 283-290, 2007-09.18-20 file 2007-09-18
403 International Conference Ju-Hwan Cha, Seung-Ho Ham, Kyu-Yeul Lee, Myung-Il Roh, Kwang-Pil Park, Heung-Won Suh, "Discrete Event/Discrete Time Simulation of Block Erection by a Floating Crane based on Multibody System Dynamics", Proceedings of ISOPE 2009, Osaka, Japan file 2009-06-21
402 International Conference Ju-Sung Kim, Myung-Il Roh, Seung-Ho Ham, Ki-Su Kim, "Dynamic Method for Flooding Simulation of a Damaged Floater Considering Ocean Environmental Loads", Proceedings of the 30th Asian-Pacific TEAM 2016, Mokpo, Korea, 2016.10.10-13 file 2016-10-12
401 International Conference Ki-Su Kim, Jung-Woo Hong, Sol Ha, Seung-Ho Ham, Nam-Kug Ku, Myung-Il Roh, "A Method for Optimal Arrangement Design Based on Expert System and Its Application to Submarine Design", Proceedings of IMDC 2015, Tokyo, Japan, 2015.5.11-14 file 2015-05-13
400 International Conference Ki-Su Kim, Myung-Il Roh, "Optimal Arrangement Method of a Ship Considering the Performance against Flooding", Proceedings of PRADS 2019, Yokohama, Japan, 2019.09.22-26 file 2019-09-22
399 International Conference Ki-Su Kim, Myung-Il Roh, "Optimization of the Arrangement Design of a Ship Considering the Multiple Performance", Proceedings of ACSMO 2020, Seoul, Korea, pp. 167, 2020.11.23-25 file 2020-11-24
398 International Conference Ki-Su Kim, Myung-Il Roh, Ju-Sung Kim, "A Method of Dynamic Flooding Analysis in Time Domain for the Compartment Arrangement Design of a Ship", Proceedings of ISOPE 2017, San Francisco, USA, pp. 862-866, 2017.06.25-30 file 2017-06-28
397 International Conference Ki-Su Kim, Myung-Il Roh, Seung-Ho Ham, "Ship Route Planning Considering the Effects of Sea State and the Fuel Consumption", Proceedings of PRADS 2016, Copenhagen, Denmark, 2016.09.04-09.08 file 2016-09-07
396 International Conference Ki-Su Kim, Myung-Il Roh, Seung-Ho Ham, Sol Ha, "An Improved Method for the Evacuation Analysis of a Passenger Ship Considering Intermediate Flooding", Proceedings of PRADS 2022, Dubrovnik, Croatia, 2022.10.09-13 2022-10-09
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