• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2006년도 전기학술대회논문집
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• pp.133-134
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• 2006

Recently, despite of the effects of international Coordination and cooperation to prevent piracy, piracy is on an increasing trend every year. Such circumstances may have a bad effect on the sound development of world economy by means of trade in sea as well as treat to the safety of crews and safe operation of ships. Finally, Modern maritime piracy has become one of the major threats to safety at sea. We having Cargo-owners or Ship-owners attacked by piracy, it causes enormous economic losses. Therefore, Ship-owners and Cargo-owners insure Cargo Insurance, Hull Insurance and P&I Insurance to indemnity of losses which is caused by piracy. The Purpose of this paper was to explain the losses caused by piracy and studying the limits of the possibility of indemnity in the Cargo Insurance, Hull Insurance and P&I Insurance.

• 해양환경안전학회지
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• 제18권4호
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• pp.331-335
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• 2012

2012년 1월 13일 이탈리아 국적 초대형 여객선 코스타 콘코디아호가 부분 침몰되었다. 당시 해당 선박은 4,252명의 여객과 승무원이 승선하고 있었으며, 사고 며칠 후 30여명이 사망하였으며 사고 24시간 이후 두명의 한국인을 포함한 이탈리아 선원들이 극적으로 구조되었다. 2012년 6월 18일까지(본 논문 발표일 기준) 총 32명의 사망자와 64명의 부상자 등 총 100여명의 사상자가 발생한 해사안전 문제의 치유할 수 없는 사고가 발생되었고 현재까지 사고에 대한 조사가 여전히 진행 중이다. 본 연구에서는 이번 초대형 이탈리아 여객선 코스타 콘코디아호의 재난 경과 보고서로써 사고의 문제점, 원인, 향후 대책방안 등에 관하여 조사 분석을 실시하였다. 본 연구의 하나의 주된 결과로써 향후 이러한 초대형 여객 운반선의 경우 국제 해사 안전적 관점에서 혁신적이고 지능적인 선박 퇴선 시스템이 구축되어야 할 것으로 분석되었다.

• Journal of Advanced Marine Engineering and Technology
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• 제34권5호
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• pp.735-742
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• 2010

본 연구는 극한 환경에서의 잠수 기준에 대해 살펴보고, 2010년 3월 백령도 근해에서 발생한 천안함 침몰사고의 실종자 수색 작업에 적용된 우리 해군의 잠수 방식과 사용 장비, 절차 등에 대한 분석을 하였다. 이번 잠수작업은 국제 기준이나 안전을 고려하면 작업을 해서는 안 되는 조건인데도 불구하고 작업이 시행되었으며, 초기 수색 작업에 있어서 임무의 성격, 신속성, 효율성을 고려하고 세부적으로 수심과 잠수 가능시간, 작업의 종류, 환경 조건, 작업 기간을 검토한 결과, 공기를 사용하는 스쿠버 방식이 적절하였다고 분석되었다.

• International Journal of Ocean System Engineering
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• 제1권4호
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• pp.211-221
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• 2011

Tugboats are widely used near harbors to assist with various operations such as the berthing and deberthing of very large vessels and the towing of barges. Capsizing accidents involving tugboats occasionally take place when the tugboat makes rapid turns in harsh weather conditions. When there is little evidence suggesting how the accident occurred and when the crew members are missing, it is necessary to predict the time history of the towing vessel’s attitude and trajectory from its departure point to when and where it capsized, depending on various input parameters using a numerical simulation. In this paper, the dynamics of a tugboat and a towed barge in conjunction with the external force and moment were established, and the possible input parameters and operational scenarios which might influence the large roll motion of the tugboat were identified. As a result of analyzing the simulated time history of the excessive roll motion of the tugboat, it was found that roll motion can take place when the tugboat is situated on the crest of a wave and when it is pulled by a towed barge through a towing line. The main cause of the accident would be the parameters that primarily influence such situations. These are the wave parameters, course changing scenario, and the amount of tension.

• 한국항해학회지
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• 제11권2호
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• pp.1-31
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• 1987

Nowadays, the transportation of almost all cargoes depends on sea routes in international trade. In the transaction of trade, cargo transportation must be completed on the base of two contrary objectives, one of which is to protect the vessel, cargoes and crew aborad her safely through every step of the transportation and the other is to pursue profits from the transaction of the trade. In spite of the great development of the modern techniques in shipbuilding today, many sea disaters of big merchant vessels have been occurring successively in winter seasons every year on the sea routes of the North Pacific Ocean. Whenever the accident of losing a vessel in rough sea occurred , many experts of the country to which the vessel belonged had tried to take out the reason of the missing without manifesting the exact cause of the unhappy occurrence. In this paper, we calculated ocean wave status along the route of the North Pacific Ocean theoretically concluded by us as optimum on the basis of weather and sea conditions. In the calculation, we used ITTC wave spectrum formula and meteorological data of "Winds '||'&'||' Waves of the north Pacific Ocean" edited by Ship Research Institute of Japan on the basic data assembled by World Meterological Organization through past 10 years. We selected three sample vessels of most common size in the North Pacific Ocean Routes, a container, a log carrier and a bulk carrier and applied tree sample vessels to the calculated sea conditions for getting the rolling angles of the vessels and stress exerting on the hulls. Examining the calculated results, we concluded as follows; 1. Under the condition of these status7 by beaufort scale, "heave to" maneuvering is the best and safest way to steer every vessel. 2. The most dangerous part of sea area along the west bound optimum route of the North Pacific Ocean in winter season, is the southern sea area of the Kamchatka peninsula.a peninsula.

• 한국항공운항학회지
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• 제22권1호
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• pp.114-123
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• 2014

Due to the recent aircraft accidents both in Ethiopian airline and Malaysian airline, almost all the media are focusing the importance of the airline safety. Especially, media's eyes and ears are interested in the reasons why Malaysia airline's missing presumed as by either terrorist attack or pilot's mistake. Safety Behaviors of pilot are viewed as the most important human factor issues among researchers. This is because, if it were the case of a commercial airline, pilot's safety behavior would be directly related to the lives of couple of hundreds passengers. This paper considers the antecedents of this safety behaviors as pilot's leadership, pilot's leadership and self-efficacy. This paper has tried to find out which human factors of a pilot would have significant impact on their safety behaviors. According to the empirical research result from SEM (Structural Equation Model), it was found out both the leadership and self-efficacy of a pilot had direct impact on their safety behaviors through safety motivation. Thus it could be concluded that flight crew must follow the instruction of a pilot who had the authority of the flight operation. The managerial implication are discussed in the conclusion part of this paper. As an implication, this paper concluded that it would be necessary to do further research on pilot's leadership and self-efficacy.

• Journal of Advanced Marine Engineering and Technology
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• 제38권9호
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• pp.1156-1162
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• 2014

294명이 사망하고 10명이 실종된 세월호 사고와 같은 해상사고의 재발을 방지하기 위하여, 본 연구에서는 세월호 사고 전후 국내 여객선 승객의 안전의식 변화를 비교, 분석하였다. 설문조사는 제주연안여객터미널에서 2014년 2월과 5월에 두차례 수행되었고 설문에 대한 각 유효응답인원은 394명, 401명이었다. 세월호 사고 이후 승무원이 알려주는 경로를 따르겠다는 응답은 24.8% 낮아졌고, 승무원의 유도에 따라 피난을 가겠다는 응답도 18.5% 감소하는 등 전반적으로 승무원에 대한 신뢰가 낮아졌다. 또한 세월호 사고 이후 여객선 일반 승객의 77.6%는 세월호 사고와 같은 재난을 당할 수 있다는 불안감을 느끼지만, 약 60% 응답자는 승선 중 진행된 안전교육을 받지 않았고, 45%는 구명조끼 착용법을 모르며, 약 50%정도는 비상대피로를 확인하지 않으고, 60%는 구명벌, 구명보트의 위치를 파악하지 않는 모순을 보였다. 한편, 86.9%의 응답자가 현재 주로 동영상으로만 진행되는 안전교육 방법의 개선이 필요하다고 응답했다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2018년도 추계학술대회
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• pp.241-247
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• 2018

Deep-sea fishing vessel No. 501 Oryong was fully flooded through its openings and sunk to the bottom of the sea due to the very rough sea weather on the way of evasion after a fishing operation in the Bearing Sea. As a result, many crew members died and/or were missing. In this study, a full-scale ship flooding and sinking simulation was conducted, and the sinking process was analyzed for the precise and scientific investigation of the sinking accident using a highly advanced Modeling & Simulation (M&S) system of the Fluid-Structure Interaction (FSI) analysis technique. To objectively secure the weather and sea states during the sinking accident in the Bering Sea, time-based wind and wave simulation at the region of the sinking accident was conducted and analyzed, and the weather and sea states were realized by simulating the irregular strong wave and wind spectrums. Simulation scenarios were developed and full-scale ship and fluid (air & seawater) modeling was performed for the flooding sinking simulation, by investigating the hull form, structural arrangement & weight distribution, and exterior inflow openings and interior flooding paths through its drawings, and by estimating the main tank capacities and their loading status. It was confirmed that the flooding and sinking accident was slightly different from a general capsize and sinking accident according to the simple loss of stability.

• 수산해양기술연구
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• 제54권2호
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• pp.173-180
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• 2018

Marine casualties of small fishing vessels (SFV) of less than 20 tons are frequent in Korea. The analysis was conducted to identify the cause and then prepared reduction plan using the marine casualty statistics of fishing vessels for the last five years from 2012 to 2016 by the Korean Maritime Safety Tribunal to reduce the marine casualties of SFV. According to the analysis of the type of whole vessels occurring marine casualty, fishing vessels accounted for an average 68.0 %; moreover, except for 2014 when M/V SEWOL ferry capsizing occurred, the rate of death and missing due to marine casualties occurred from 68.3 % to 91.2 % in fishing vessels, and an average 79.5 % was found to be urgent need of a measure. Marine casualties occurrence depending on the gross tonnage of fishing vessel was found that the most occurred at less than 5 tons, followed by the order of 5 to 10 tons or less. However, crews who boarded on SFV do not have any training program for them, except for the fishing safety training of fisher who carry out fishing for shipowners and crew of the coastal and offshore fishing vessel in accordance with the safety regulations for fishing vessels in the Fisheries Cooperative Association. Therefore, it is necessary to revise the training program so as to improve the preventive action and then emergency response including the fishing safety compliance with each fishery, safe navigation, machinery inspection and emergency response. Also, an SFV of less than 5 tons of 56,000 vessels is boarded by unqualified fishers. It would also be possible to consider subdividing small boat operator's certificate to enhance their qualifications. It is expected that marine casualties of SFV will be reduced if active efforts are made to improve the safety consciousness of fisher and shipowners as well as the reorganization of fishing safety training and the small boat operator's certificate system.

• 한국항해항만학회지
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• 제41권6호
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• pp.451-466
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• 2017

원양어선 제501 오룡호는 황천 중인 베링해에서 조업 후 피항하던 중 개구부를 통한 침수로 인하여 침몰하였으며 많은 선원들이 사망하고 실종되었다. 본 연구에서는 유체-구조 연성(Fluid-Structure Interaction, FSI) 해석기법의 고도 정밀 M&S(highly advanced Modeling & Simulation) 시스템을 사용하여 실선 침수 침몰 시뮬레이션을 수행하여 침몰사고의 과정을 정확하고 과학적으로 분석하고자 하였다. 베링해 침몰사고 시의 기상 및 해상상태를 객관적으로 확보하기 위하여 침몰사고 지역의 시간대별 기상 및 해상 시뮬레이션을 수행하여 침몰사고 당시 파랑과 강풍 등을 분석하고, 불규칙 파랑과 강풍 스펙트럼을 사용하여 구현하였다. 사고선박의 선체 도면 등을 통하여 선박의 선형, 배치 및 중량 분포와 외부 해수 침수 개구부 및 선내 침수 경로를 분석하고 주요 탱크들의 용적과 그들의 중량 분포를 추정하여 침수 침몰 시뮬레이션을 위한 시나리오를 작성하고, 사고선박의 전선과 유체(공기 및 해수)를 상세 모델링을 하였다. 본 연구를 통하여 침수 침몰사고는 단순한 복원성의 부족으로 인한 일반적인 전복 침몰사고와는 다소 차이가 있다는 것도 확인할 수 있었다.