• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.05a
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• pp.206-207
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• 2023

Intelligent maritime traffic information services provide services for maritime traffic safety, but due to the difference in ship specifications and loading condition, the method of determining abnormalities in ship stability has not been generalized. In this study, we established a method for collecting and preprocessing Accelerometer and GPS data for calculating ship stability. In addition, we have researched a model that can determine the real-time ship stability through data science algorithms that can reflect each vessel specifications and external forces, breaking away from approximate calculations that cannot reflect weather factors in the real ocean.

• Journal of Korea Ship Safrty Technology Authority
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• s.24
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• pp.90-105
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• 2008

본 연구는 기존에 사용하고 있는 설계도서 작성 및 도면승인을 위한 검증시스템에 대하여 불편한 점들을 수정하는 등 보완 및 개선을 수행하여 선박설계 정보에 대하여 자체적으로 검증할 수 있는 시스템을 개발하고, 이를 활용하여 설계도서 작성이나 도면승인 업무를 수행함에 있어 신속하고 정확할 수 있도록 하기 위함이다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.28 no.2
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• pp.290-296
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• 2022

According to an investigation performed on shipping accidents, the number of domestic shipping accidents has been increasing despite the decrease in global shipping accidents. Therefore, to reduce domestic shipping accidents, the present study investigated the criteria for the stability of fishing vessels. The IMO, foreign, and domestic regulations regarding fishing vessel stability were investigated, and a comparative study was conducted. The results showed that domestic regulations were the most relaxed regarding vessel stability. Finally, we proposed five items for the KOREA FISHING VESSELS STABILITY CRITERIA AMENDMENTS on the basis of the comparative study.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.06a
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• pp.64-65
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• 2022

내항성능 해석 기반의 선박 해양활동지수에 관한 연구는 연근해에서 활동하는 30톤이하 선박에 대해 해양기상신호표지 정보 및 내항성능 해석 정보를 이용해서 선박의 안전한 해양활동 대책을 연구하는 것이다. 해양사고는 매년 증가 추세에 있으며 특히, 연근해 활동 소형선박의 사고가 해양사고의 많은 부분을 차지하고 있고 이러한 선박은 복원성 승인 및 유지 제외 선박(길이 24m 미만)으로 대부분으로 건조 시부터 폐선 시까지 해양활동에 대한 안전대책이 부족하여 사고로 인한 사망, 실종 등 인명손실이 많이 발생하고 있다. 선박의 해양활동에 가장 큰 영향을 미치는 해양기상정보는 여러 기관별 목적에 맞게 수집되고 있으나 활용도가 떨어지고 실제 기상과 다를 수 있으며 지역 및 지형에 따라서도 기상여건이 상이하므로 현지 실시간 기상정보를 활용한 선박에 대한 적극적인 안전한 해양활동 정보 지원이 필요하다. 이 연구에서는 파고와 풍속 및 선박의 내항성능 해석 정보를 이용하여 30톤이하 선박에 대한 안전한 해양활동 대책을 강화하고자 함이다.

• Journal of Korea Fishing Vessel Association
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• v.31
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• pp.10-16
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• 1987

• Journal of Korea Fishing Vessel Association
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• v.46
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• pp.46-48
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• 1991

• Journal of Korea Fishing Vessel Association
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• v.36
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• pp.56-60
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• 1988

• Journal of Korea Fishing Vessel Association
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• v.50
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• pp.5-10
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• 1992

• Journal of Navigation and Port Research
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• v.43 no.6
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• pp.444-449
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• 2019

The "Standard on Cargo Stowage and Securing" implemented to safely stow and secure the cargo of international shipping vessels and domestic car ferries, has also been applied to general cargo ships transported between domestic ports since J anuary 2018. As a result, a new type of cargo, such as a non-standardized steel box transported by general cargo ships to major ports in Korea from Jeju Island in Korea, must be factored as the method of safe stowage and securing according to the legal classification of cargo. This study analyzed the legal status of a steel box by analyzing the actual size, shape of steel box through field verification, collection of data from relevant agencies and finally proposed the methods of safe stowage and securing for a steel box in the cargo holds of general cargo ships. According to the relevant domestic laws and international regulations, steel boxes could be classified as pallette boxes with protective outer packing, a type of non-standardized cargo. Additionally, when a steel box is loaded into the cargo hold of general cargo ships, a method of loading and transporting them must be factored so that there is no gap in the cargo hold of ships. Verification of the safety of the tightly loading and transportation measures in the reviewed cargo hold was verified through safety of the hull structure and securing of the ship's stability. As a result of verification of the safety of the hull structure, the value of the structural strength on both sides and the floor of the cargo hold for the total weight of cargo that can be loaded in the cargo hold was satisfied, and the value of the ship's stability was satisfied with the value of GoM and the restoration of the three cross-sectional stability curve areas.

• The KSFM Journal of Fluid Machinery
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• v.16 no.2
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• pp.42-47
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• 2013

Ship stability prediction is very complex in reality. In this paper, risk based approach is applied to predict the probability of a certified ship, which is effected by the forces of sea especially the wave loading. Safety assessment and risk analysis process are also applied for the probabilistic prediction of ship stability. The survival probability of ships encountering with different waves at sea is calculated by the existed statistics data and risk based models. Finally, ship capsizing probability is calculated according to single degree of freedom(SDF) rolling differential equation and basin erosion theory of nonlinear dynamics. Calculation results show that the survival probabilities of ship excited by the forces of the seas, especially in the beam seas status, can be predicted by the risk based method.