• Title/Summary/Keyword: Ice navigation

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Ice Navigation 선박의 성능 조건에 관한 연구

  • Lee, Dong-Seop
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2011.06a
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    • pp.379-381
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    • 2011
  • 2010년 3월 22일 "Ice Navigation"에 대한 경험과 자료 수집을 위하여 통영항(평택항)과 Sakhalin "Prigorodnoye항"을 운항하는 대한해운 소속의 "K. Jasmine"호를 승선하여 "Prigorodnoye항"에서 LNG $143,700M^3$를 선적하여 "통영항"에서 양하하는 과정을 경험하고 하선하였다. "K. Jasmine"호는 년 150만톤의 LNG 수입을 위한 "한국 ${\leftrightarrow}$ Sakhalin Project"에 투입된 LNG운반선으로서 "Russian Maritime Register of Shipping"의 "Ice Class LU2" 증서를 갖고 있는 선박이다. 이 증서는 선박이 60Cm 두께의 얼음 해역에서 Ice Breaker의 인도 아래 4Knots 이상의 선속을 유지할 수 있음을 보장받고 있다. 운항중 SEIC(Sakhalin Energy Investment Company)에서는 Ice map을 매일 제공하는 하고 있었으며, 이를 참조하여 본선에서는 계획된 항해를 수행하였다. 이 논문에서는 Ice Navigation선박의 성능 조건에 대하여 검토하여 향후 이 항로에 취항하는 선박에 지침이 되고자 한다.

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Collision Test between Ice Floe and Ship Transiting the Pack Ice

  • Kim, Hyo-Il;Sawamura, Junji;Jun, Seung-Hwan
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2015.10a
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    • pp.37-39
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    • 2015
  • The ships transiting the Northern Sea Route (NSR) have been gradually increased so that the number of ship-ice collision accidents would be increased. The collision between ship and ice floe can lead to serious damage of hulls and decline of ship's maneuverability. In this study, collision tests that a model ship is forced to collide with disk-shaped synthetic ice floes are conducted in a towing tank. The synthetic ice floes made of polypropylene which has similar density with real ice are used. The ice load is measured by a load cell installed on the carriage rod. The ice floe's motion is measured by a motion sensor installed on the synthetic ice floe. The influences of contact conditions such as hull form and ship speed on the ship-ice collision response are investigated and discussed by measured peak force and ice floe's motion.

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A Study on Displaying Color and Symbol of Ice Objects in ECDIS

  • Luong, Tu-Nam;Im, Nam-Kyun
    • Journal of Navigation and Port Research
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    • v.43 no.5
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    • pp.296-301
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    • 2019
  • The Electronic Chart Display and Information System (ECDIS) is an integral component of ship navigation equipment, that enables mariners to view Electronic Navigational Charts (ENC). Recently, it has become possible to transport freight and energy resources via the Northern Sea Routes (NSR) as global warming has been accelerating. However, ice can impact all types of ships and the potential danger that ice poses is significant. Until now, ice, consistently proven to be one of the most dangerous threats impacting navigation in ice-covered regions, has its detailed standard in the specification of the International Hydrographic Organization (IHO) for ECDIS. The investigations described in this paper were conducted to assess the advantages and problems of the display of ice objects on ECDIS. The experiments were conducted by using the Geographic Information System (GIS) to perform ice objects with their corresponding colors and symbols. Implementation of the standardized appearance of ice objects can enable mariners to access the ice condition of seas in a short time before navigating a safe passage through potentially treacherous waters. However, remain issues that must be overcome for data on ice to be fully compatible with an ECDIS system.

A Study on the Simulation of the Ship in Level Ice (평탄방에서 선박의 모의실험에 관한 연구)

  • 박명규;고상용
    • Journal of the Korean Institute of Navigation
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    • v.18 no.4
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    • pp.23-31
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    • 1994
  • A theoretical scaling was made in order to acquire the ice resistance of ships in level ice. Ice resistance of ice-breaker Ermak was calculated by Kashteljan eequation and it's model test results were compared with full-scale measurements. Atkins's ice number and Norman Jones's dimensionless numbers were investigated and discussed.

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Towing Tank Test assuming the Collision between Ice-going Ship and Ice Floe and Measurement of Ice Floe's Motion using Machine Vision Inspection (내빙선과 유빙의 충돌을 가정한 예인수조실험 및 머신비전검사를 이용한 유빙의 운동 계측)

  • Kim, Hyo-Il;Jun, Seung-Hwan
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2015.10a
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    • pp.33-34
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    • 2015
  • The voyage and cargo volume passing through the Arctic route (NSR) have been gradually increased. The ship-ice collision is one of the most biggest factors threatening the safety navigation of ice-going ships. A lot of researchers are trying to reveal the ship-ice collision mechanism. In this study, some tests that a model ship is forced to collide with disk-shaped synthetic ice are carried out in a towing tank. Then, ice floe's motion (velocity and trajectory) is measured by machine vision inspection.

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북극해 항로현황과 Ice Navigator 교육개발에 대하여

  • Lee, Dong-Seop
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2013.10a
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    • pp.110-111
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    • 2013
  • 우리나라 현대 글로비스사는 스웨덴의 Stena 해운사 소속인 M/T Stena Polaris호를 용선하여 화물(납사, 43,838톤)을 싣고 2013년 9월 15일 러시아 Ust Luga항을 출항하여 약 8,100마일 북극해 항로(North Sea Route)를 통하여 10월 17일경 여수 사포 1부두에 입항할 예정이다. 이는 금년 5월 15일 "북극해 이사회"의 영구옵서버 자격을 취득과 더블어 새로운 물류 시대의 개막이라고 할 수 있겠다. 이런 시점에서 한국해양수산연수원은 국내 Ice Navigator 교육시장 선점과 세계적 교육기관으로 도약을 하기 위하여 교육과정을 개설준비 하고 있으며, 금번 시범운항 행사를 위하여 방문한 9월 13일 Ice Navigation Training 교육과정이 이미 개설되어 있는 Russia Admiral Makarov State Maritime Academy측 총장 및 관계자와 Russia교수진의 협력 및 NSR 통과 선박의 승선실습을 요청하였으며, 교육인증을 위한 협력도 추진하기로 하였다. 따라서 현재 북극해 항로현황과 Ice Navigator교육과정 개발에 대하여 검토해 보고자 한다.

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Ice Navigation Training 교육과정 개발

  • Lee, Dong-Seop
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2013.06a
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    • pp.225-226
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    • 2013
  • 우리나라는 2013년 5월 15일 "북극이사회"의 영구옵서버 자격을 취득하였으며, 2013년 후반기 국적선박을 북극해 항로에 투입 할 예정인 시점에서 한국해양수산연수원은 국내 Ice Navigator 교육시장 선점과 세계적 교육기관으로 도약을 하기 위하여 Ice Navigation Training교육과정을 개설준비 하고 있다. 이를 위하여 북극해 항해기술, 극지 안전훈련, 북극해 최신 동향, 러시아의 북극해 정책, 통과절차 및 외국선박의 운항사례분석 등을 통하고, Ice Navigation Training 교육과정(Familiarization(친숙화), Professional(상급), Practical(직무), Crew Management등)이 이미 개설되어 있는 Russia Admiral Makarov State Maritime Academy측 교수진의 연수원 파견 및 한국적 선박의 북극해항로(North Sea Route, NSR) 통과시 승선실습이 가능할 수 있도록 협조를 요청 할 예정이며, 교육인증을 위한 협력(Makarov Academy측으로부터 교육과정에 대한 인증)도 추진 중이다. 이에 준비한 교육개발을 소개하고자 한다.

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극지 운항선박의 Ice Engineer 직무교육 과정 개발에 대한 연구

  • Lee, U-Geun;No, Beom-Seok
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2015.10a
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    • pp.127-129
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    • 2015
  • 극지해역 운항선박은 주 추진시스템 및 선박 장비들이 일반 상선과 다른 경우가 많다. 따라서 극지운항 선박의 기관사들은 각종 장비 및 시스템에 친숙해져야 할 필요가 있다. 이 연구에서는 교육 및 훈련을 통해 극지 운항 선박에 승선하는 기관사관의 자질 향상을 통해 극지운항 선박의 안전운항을 도모하는데 있다. 또한, 그러한 자질 향상을 위해 필요한 Ice Engineer 교육 프로그램 방안을 모색하였다.

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북극항로 운항 선박의 빙해역 운항 속도 추정에 관한 연구

  • Kim, Hyeon-Su;Han, Dong-Hwa;Ozden, Ali Erinc
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2018.11a
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    • pp.177-180
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    • 2018
  • As ships operating on the Arctic route are exposed to various ice environments such as level ice, pre-swan, pack ice, ice ridge and brash ice, it is essential to estimate the ice resistance according to the ice environment. Methods for estimating the ice resistance include a method using mathematical model, numerical simulation, and a method using empirical formula. In this study, empirical formulas are used to estimate the ice resistance. The purpose of this study is to develop the ice resistance and attainable speed estimation program(I-RES) for various ice environments.

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Dynamic-Thermodynamic Sea Ice Model: Application to Climate Study and Navigation

  • Makshtas, Alexander;Shoutilin, Serger V.;Marchenko, Alexey V.;Bekryaev, Roman V.
    • Journal of Ship and Ocean Technology
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    • v.8 no.2
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    • pp.20-28
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    • 2004
  • A dynamic-thermodynamic sea ice model with 50-km spatial and 24-hour temporal resolution is used to investigate the spatial and long-term temporal variability of the sea ice cover the Arctic Basin. The model satisfactorily reproduces the averaged main characteristics of the sea ice and the sea ice extent in the Arctic Basin and its decrease in early 1990th. At times model allows to suppose partial recovery of sea ice cover in the last years of twenty century. The employment of explicit form for description of ridging gives opportunity to assume that the observed thinning is the result of reduction the intensity of ridging processes and to estimate long-term variability of probability the ridge free navigation in the different parts of the Arctic Ocean including the North Sea Route area.