Stability Indices of Ships in Following Waves

船舶随波稳定性指数

• 批准号: 04302036
• 负责人: HAMAMOTO Masami
• 金额: $ 10.24万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04302036/
• 关键词: Ship Motions in Following Waves; Capsizing of Ships; Criteria of Ship Stability; Risk Analysis for Capsizing of Ships

In order to clarify the stability indeces leading up to capsizing of a ship in severe following waves, the following research items have been done during the term of this project : 1) An Analysis of a Ship Capsizing in Quatering Seas, 2) Examination of Roll Damping Coefficients and Effective Wave Slope Coefficient for Small Passenger Crafts, 3) Stability Assessment of a Ship by Applying Risk Analysis based on the Capsizing Probability, 4) Preliminary Study Towards a Capsizing Simulator, 5) On the Improvement of Transverse Stability for High-Speed Craft, 6) A New Coordinate System and the Equation Describing Manoeuvring Motion of a Ship in Waves, 7) Time Domain Analysis of Ship Responses in Waves, 8) A Consideration on the Governing Equation of the Ship's Manoeuvering Motion in Waves, 9) A Representation of Asymmetric Waves of Finite Height, 10) A Physical-Mathematical Model of Hydrodynamic Forces and Moment Acting on a Hull During Large Drifting and Turning Motion Under the Conditions of Slow Speed. From this study the following results have been obtained : 1) The practical equations of motions to describe the motions of a ship in severe following waves have been shown from both theoretical and experimental considerations. Various physical mechanism that could be responsible for capsize have been pointed out by numerical experiments. 3) The capsizing simulator which will be helpful to give an operational guidance to avoid capsizing has been completed. 4) The prescribed roll damping and effective wave slope coefficients for small passenger crafts in the current Ship Stability Rule have been investigated.

为了弄清导致船舶在剧烈随浪中倾覆的稳定性指标，本项目在研究期间进行了以下研究项目：1)四分海船舶倾覆分析，2)小型客船横摇阻尼系数和有效波坡系数的检验，3)基于倾覆概率的风险分析对船舶稳定性的评价，4)倾覆模拟器的初步研究，5)高速船舶横向稳定性的改进，6)一种新的坐标系和描述船舶在波浪中操纵运动的方程，7)船舶在波浪中响应的时域分析，8)对船舶在波浪中操纵运动控制方程的考虑，9)有限高度非对称波的表示，10)慢速大漂移和转向运动中作用在船体上的水动力和力矩的物理数学模型。从理论和实验两方面得到了描述船舶在剧烈跟浪中运动的实用运动方程。通过数值实验，指出了导致倾覆的各种物理机制。(3)完成了对船舶避免倾覆进行操作指导的船舶倾覆模拟器。4)对现行船舶稳定规则中规定的小客船横摇阻尼和有效浪坡系数进行了研究。

项目成果

斎藤 公男,東 秀行: "波浪中船体応答の時系列解析について、" 日本造船学会論文集. 172. 9-16 (1992)

Kimio Saito，Hideyuki Higashi：“关于波浪中船体响应的时间序列分析”，日本造船学会汇刊 172. 9-16 (1992)。

Hasegawa,K.,Hamamoto,M.,Kotani,H.: "Preliminary Study Towards a Capsizing Simulator" Proc.of The Impact of New Technology on the Marine Industries. 1-9 (1993)

Hasekawa,K.、Hamamoto,M.、Kotani,H.：“倾覆模拟器的初步研究”，新技术对海洋工业的影响。

Hamamoto, M., Kim, YS.: "A New Coordinate System and the Equation Describing Manoeuvring Motion of a Ship in Waves" J.of Soc.of Naval Architects of Japan. Vol.173. 209-220 (1993)

Hamamoto, M.、Kim, YS.：“一种新的坐标系和描述波浪中船舶操纵运动的方程”，日本造船协会杂志。

藤原敏文,池田良穂,梅田直哉: "転覆確率を用いた船舶の復原性評価に関する研究" 関西造船協会誌. 221. 111-116 (1994)

Toshifumi Fujiwara、Ryoho Ikeda、Naoya Umeda：“利用倾覆概率评估船舶稳定性的研究”关西造船协会杂志 221. 111-116 (1994)。

Lee,S.K.,Hasegawa,K.: "A Consideration on the Governing Equation of the Ship's Manoeuvering Motion in Waves" Proc.of 2nd Japan-Korea Joint Workshop on Ship and Marine Hydrodynamics. 131-139 (1993)

Lee,S.K.,Hasekawa,K.：“关于船舶波浪运动控制方程的考虑”第二届日韩船舶与海洋流体力学联合研讨会论文集。