https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/115 Tue, 05 May 2026 19:38:44 GMT 2026-05-05T19:38:44Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9515 Title: A Concept Study on Design Alternatives for Minimizing Accident Consequences in Maritime Autonomous Surface Ships Authors: Lee, Gyeong Joong; Lee, Dongkon; Choi, Jin; Kang, Hee Jin Abstract: Autonomous ships, also known as maritime autonomous surface ships (MASS), are vessels that use artificial intelligence and robotics technologies to navigate independently. Due to their advanced technological capabilities, MASS is expected to play a significant role in the future of the shipping industry. The International Maritime Organization (IMO) is currently developing international standards for MASS classification, including accident avoidance technologies. However, the issue of how to mitigate the consequences of accidents involving autonomous ships has not been sufficiently addressed. Therefore, this study focuses on alternative design solutions and emergency response systems for MASS to properly control emergency situations and minimize the impact of accidents, such as flooding and fire on board. The goal is to efficiently address such accidents, especially in situations where the number of people on board is significantly reduced or the ship is being operated automatically or remotely, and to promptly detect and respond to such situations from a remote location. This paper investigates the possibility of modifying the design of the air conditioning system to delay flooding by considering a reduction in the number of crew members in order to prevent flooding. To prevent the spread of fire, the study examines early blockage measures for areas where air can enter. Flood and fire response systems were configured to be executed manually or automatically based on the results of presimulated scenarios defined in thousands of accident scenarios. Each accident propagation and response situation proposes an alternative using a coded shortcut key utilizing graphic symbols of international standard ISO 23120. Sat, 01 Apr 2023 00:00:00 GMT https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9515 2023-04-01T00:00:00Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9621 Title: Air Pressure Scale Effects During Damage Model Tests Authors: Lee, G.J.; Reed, A.M.; van, Walree F.; Peters, A.; Gualeni, P.; Katayama, T.; Duan, W.Y. Abstract: The Stability in Waves committee of the 27th ITTC has investigated the significance of scale effects in air pressure on flooding model tests under atmospheric conditions. For this purpose, the committee classified the flooding cases into the trapped air case and vented air case and investigated the flooding process for a simple geometry, using the state equation of air and orifice equation. As a result, the committee concluded that the scale effect is large for the case of trapped air and small vent area. For the other cases, the effect is small and can therefore be neglected in the model test of a damaged ship. In addition, the committee proposed some directions that can be used to reduce the scale effect of air pressure. ？ 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG. Sun, 01 Jan 2023 00:00:00 GMT https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9621 2023-01-01T00:00:00Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9622 Title: The Inertia Contributions Due to Floodwater Mass Authors: Lee, G.J.; Reed, A.M.; van, Walree F.; Peters, A.; Gualeni, P.; Katayama, T.; Duan, W.Y. Abstract: The Stability in Waves committee of the 27th ITTC investigated how to deal with the inertia due to floodwater mass from three points of view: (1) floodwater domain, (2) floodwater inertia itself, (3) floodwater entering ship. The committee suggested three criteria indicating the concept of how to deal with floodwater and providing clues on what to consider as floodwater when examining damage ships: (1) whether the water is moving with the ship or not, and amount of that water, (2) whether there is a significant pressure jump across the compartment boundary or not, (3) whether the dynamics of water can be solved separately or not. For floodwater inertia, the committee divided this into the partially flooded case and fully flooded case, and investigated the properties and showed how to deal with floodwater inertia for each case. For the case of the floodwater entering ship, the treatment of inertia change due to floodwater was made clear using the momentum change principle. The related procedure was updated reflecting this work. ？ 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG. Sun, 01 Jan 2023 00:00:00 GMT https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9622 2023-01-01T00:00:00Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/7770 Title: 운항 성능 해석을 통한 선체 관리 효과 분석 Authors: 박범진; 김명수; 이준형; 신명수; 이경중 Sat, 01 Jan 20221020 00:00:00 GMT https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/7770 20221020-01-01T00:00:00Z