Study on the safety assessment of free-fall lifeboat system

自由落体救生艇系统安全评估研究

• 批准号: 12650906
• 负责人: ARAI Makoto
• 金额: $ 0.96万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650906/
• 关键词: Free-fall lifeboat; ship; Emergency evacuation; Slamming; Numerical simulation; 安全性; 救命システム; 海難; 水面衝撃; 船体運動

Free-fall life boat is a newly developed evacuation system suitable for use in large merchant ships and offshore structures. Detailed studies on the boat motion and acceleration on boat hull during its water entry are carried out by using a newly-developed numerical-simulation method in which impact force is evaluated by a simple theoretical formula. A new launching system is then proposed as one of the main research results by this study.In addition to the study on the lifeboat motion, a study on the numerical simulation method of wave impact force is carried out by using a technique of computational fluid dynamics (CFD). Comparisons of the computed results of impact force with the experimental ones confirmed the effectiveness of the proposed technique. The improvements achieved over the existing approaches are also studied.Basic studies on the bow flare slamming of container ships, which is a similar phenomenon to the water entry of free-fall lifeboats, are also conducted in this research.

自由落体救生艇是一种新型的救生系统，适用于大型商船和海洋结构物。本文采用一种新的数值模拟方法，对船舶入水过程中的运动和对船体的加速度进行了详细的研究。本论文的主要研究成果之一是提出了一种新型的救生艇下水系统，在救生艇运动研究的基础上，利用计算流体力学（CFD）技术对波浪冲击力的数值模拟方法进行了研究。冲击力的计算结果与实验结果的比较证实了所提出的方法的有效性。本研究还对集装箱船艏部喇叭砰击这一类似于自由落体救生艇入水的现象进行了基础研究。

项目成果

Arai, M.: "Studies and Improvements of Free-fall Lifeboat System"SOBENA'2000, Society of Naval Engineering, Brazil. (CD-ROM). (2000)

Arai, M.：“自由落体救生艇系统的研究和改进”SOBENA2000，巴西海军工程学会。

Ogawa, Y.: "Effect of ship type on green water load"Journal of the Society of Naval Architects, Japan. 192. 181-190 (2002)

小川，Y.：“船舶类型对绿水荷载的影响”日本造船学会杂志。

小川剛孝: "大波高中における大型コンテナ船のフレアスラミングに関する研究(第一報)フレア衝撃圧の確率密度関数に関する検討"日本造船学会論文集. 第192号. 191-200 (2002)

小川刚：《大型集装箱船在高、中波中的耀斑撞击研究（第一次报告）耀斑冲击压力的概率密度函数研究》日本造船学会学报第 192. 191-200 号（2002 年）。 ）

Arai,M: "New Launching Concept for Free-Fall Lifeboats and Validation by Model Experiments and Numerical Simulations"The 7th International Marine Design Conference, IMDC 2000. 205-215 (2000)

Arai,M：“自由落体救生艇的新投放概念以及模型实验和数值模拟的验证”第七届国际船舶设计会议，IMDC 2000. 205-215 (2000)

Arai,M: "A New Launching Concept for Free-Fail Lifeboats"Proceedings of Major Hazards Offshore, ERA Report 2000, 0548. 0548. 6.2.1-6.2.11 (2000)

Arai,M：“无故障救生艇的新启动概念”海上重大危险论文集，ERA 报告 2000, 0548. 0548. 6.2.1-6.2.11 (2000)