• Title/Summary/Keyword: Undesirable and unpredictable motion

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A study on maneuvering performance improvement of a towed vessel without a power propulsion system: system modeling (견인되는 선박의 조종성능 개선에 관한 연구 : 시스템 모델링)

  • TRAN, Duc-Quan;LEE, Dong-Hun;KIM, Tae-Wan;KIM, Young-Bok;PARK, Hwan-Cheol
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.54 no.4
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    • pp.343-352
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    • 2018
  • In this study, a motion control problem for the vessels towed by tugboats or towing ships on the sea is considered. The towed vessel looks like the barge ship, which is used for many purposes. In these vessels, basically, the power propulsion system is not installed but just towed by a towing vessel such as tugboats with ropes and wires. It means that the motions of towed vessel are basically dependent on the tracking route of towing boat. Therefore, in some cases, undesirable and unpredictable motions may be made by environmental factors such as wave, wind attack and so on. As a result, a collision accident with others may occur during maneuvering situation. Based on these facts, the authors try to encourage the steering performance of the towed vessel by using controllable rudders without any propulsion system. In this study, especially, a controllable vessel with three rudders is considered, and a mathematical model is induced for the future study. The model is described as surge, sway motion and inertia moment by following the general representation method for the surface ship.