基于局部线性化方法的瘫船稳性敏感性分析及衡准完善  

Sensibility analysis and further development for dead ship stability criteria based on local linearization method

作　　者：王廷昊 顾解忡[1,2,3] 马骋远 马宁 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]高新船舶与深海开发装备协同创新中心,上海200240 [3]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《中国舰船研究》2018年第1期65-72,共8页Chinese Journal of Ship Research

基　　金：财政部;教育部重大科研专项资助项目(GKZY010004);国家自然科学基金资助项目(51579144)

摘　　要：[目的]瘫船稳性是当船舶失去动力后,在横风横浪状态下发生共振横摇甚至倾覆的运动模式,是公认的较危险的稳性失效模式。国际海事组织(IMO)船舶设计与建造分委会(SDC)预计将于2019年完成第2代完整稳性衡准规则定稿,目前亟需大量的样船计算以完善规则。[方法]基于局部线性化方法,对3艘集装箱船进行了瘫船稳性第2层衡准校核计算,并分析了瘫船稳性敏感性与船舶各设计参数的关系。[结果]分析结果表明,随着船舶吃水深度的增大,船舶倾覆概率将先增大后减小,并对第2层衡准的标准值选取及衡准完善提出了建议。[结论]可为瘫船稳性衡准研究提供技术支持。[Objectives]The dead ship stability,which is defined as a ship losing its power and rolling after turning into beam seas,is recognized as a dangerous stability failure mode. The International Maritime Organization(IMO)and its sub-committee on Ship Design and Construction(SDC)are expected to finalize the second-generation intact stability criteria in 2019,while a number of sample calculations are currently required for its perfection.[Methods]In this paper,a Level 2 criterion for dead ship stability is conducted for three container ships based on the local linearization method. [Results]Ship design parameters which can influence the probability of capsizing are investigated,and it is concluded that a ship's capsizing probability may first decrease and then increase as draft increases. Besides,standard value for Level 2 criterion is proposed and several suggestions are raised for the improvement of IMO dead ship stability criteria. [Conclusions]This study has a certain value in engineering application and provides technical support for the further development of dead ship stability criteria.

关 键 词：瘫船稳性 第2层薄弱性衡准 局部线性化 倾覆概率 

分 类 号：U661.32[交通运输工程—船舶及航道工程]