• Title/Summary/Keyword: 접안유체력

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A Study on the Berthing Energy considering the shallow effect of Added mass Acting on a Large Ship (천수역 선체 부가질량을 고려한 대형 선박의 접안에너지 산출에 관한 연구)

  • Lee Yun-Sok;Kim Chol-Seong;Kong Gil-Young;Lee Sang-Min
    • Proceedings of KOSOMES biannual meeting
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    • 2004.05b
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    • pp.107-112
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    • 2004
  • In order to improve the safety r! ship berthing and the efficiency r! berth operation in the harbour, the berthing energy acting on a ship in berthing maneuver need to be estimated properly. The berthing energy is used as one q the criteria to determine the maximum permissible load of fender as well as important factors to establish the berthing speed and the required power r! tug-beat for pilot and ship operator. In this study, some problems r! present the method of berthing energy are discussed on the basis of the hydrodynamic aspects. Then, series calculations of berthing energy are carried out considering the effect of water depth on added mass and the ship shape for container series from 1,600TEU to 12,000TEU.

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A Study on the Evaluation of Berthing Energy of Large-Sized Container Ships with the effect of Shallow Waters (대형 컨테이너선의 천수역 영향을 고려한 접안에너지 산출에 관한 연구)

  • Kim Chol-Seong;Lee Yun-Sok;Lee Chung-Ro;Cho Ik-Soon
    • Journal of Navigation and Port Research
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    • v.29 no.8 s.104
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    • pp.673-678
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    • 2005
  • In order to improve the safety of ship berthing and the efficiency of berth operation in the harbour, the berthing energy acting on a ship in berthing maneuver need to be estimated properly. The berthing energy is used as one of the criteria to determine the maximum permissible load q{ fender as well as important factors to establish the berthing speed and the required power of tug-boat for pilot and ship operator. Some problems of berthing energy are discussed on the basis of the hydrodynamic aspects. Then, series calculations of berthing energy are carried out considering the effect of water depth on added mass and the ship shape for container series from 1,600TEU to 12,000TEU.

Characteristics of Hydrodynamic Interaction on Tug-Barge Using Ship Handling Simulator (선박조종시뮬레이터를 활용한 예부선의 유체력 간섭 특성에 관한 연구)

  • Lee, Sang-Min;Jo, Sang-Hui
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.15 no.1
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    • pp.57-62
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    • 2009
  • In order to investigate the hydrodynamic interaction between the tug-barge and bank or ship which is crossing to the opposite direction, the towing simulations of tug-barge transportation were performed. Heading of barge, yaw moment and lateral force of tug boat were obtained by this simulation. The characteristics of results were analyzed and the safety towing method for tug-barge operation was proposed. In order to reduce the slewing motion of barge for safe towing operation, the speed of tug boat should be kept slow ahead state with shortened towing line as length of barge within the limits of the possible.

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A Study on the Development of Maneuvering Mathematical Model and Maneuvering Simulation for a Mobile Harbor (모바일하버의 조종운동 수학모델 구축 및 조종 시뮬레이션 개발에 관한 연구)

  • Jeong, Jae-Hun;Lee, Seung-Keon;Lee, Chang-Hoon
    • Journal of Navigation and Port Research
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    • v.34 no.8
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    • pp.629-634
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    • 2010
  • Mathematical model of maneuvering motion for a Mobile Harbor is established and versatile applications to the special situations of maneuvering are attempted. The Mobile Harbor in this research has twin Azipod thruster and twin bow thruster. In order to predict the maneuverability of Mobile Harbor, a mathematical model was developed on the basis of MMG model, and some model test results were adopted for the simulation of Mobile Harbor. As a result, the turning motions of the Mobile Harbor were successfully calculated. and the optimal berthing system was completed.