| 瘫船稳性第二层薄弱性衡准研究 |
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| 引用本文： | 李昕雪,王迎光.瘫船稳性第二层薄弱性衡准研究[J].海洋工程,2017,35(2):21-26. |
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| 作者姓名： | 李昕雪 王迎光 |
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| 作者单位： | 1. 上海交通大学 船舶海洋与建筑工程学院，上海 200240; 2. 上海交通大学 海洋工程国家重点实验室，上海 200240; 3. 高新船舶与深海开发装备协同创新中心，上海 200240,1. 上海交通大学 船舶海洋与建筑工程学院，上海 200240; 2. 上海交通大学 海洋工程国家重点实验室，上海 200240; 3. 高新船舶与深海开发装备协同创新中心，上海 200240 |
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| 基金项目： | 海洋工程国家重点实验室自主研究课题资助项目（GKZD010038） |
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| 摘 要： | 基于IMO第二代完整稳性草案中瘫船稳性第二层薄弱性衡准的有关研究,分析草案提出的简化计算方法,采用一个单自由度船舶横摇运动微分方程,利用例船CEHIPAR2792数据,编译相应程序,求得不规则横风横浪作用下瘫船横摇运动相应特征,进而计算特定海况下的倾覆概率及特定海区的平均倾覆指数,并与草案值进行对比。分析不同拟合扶正力臂曲线方法和剩余稳性高对计算结果的影响,并对瘫船稳性第二层薄弱性衡准方法进行修改。
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| 关 键 词： | 瘫船第二层薄弱性衡准 倾覆概率 平均倾覆指数 |
Study on a simplified dynamical methodology for 2nd level vulnerability assessment in dead ship condition |
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| LI Xinxue and WANG Yingguang.Study on a simplified dynamical methodology for 2nd level vulnerability assessment in dead ship condition[J].Ocean Engineering,2017,35(2):21-26. |
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| Authors: | LI Xinxue and WANG Yingguang |
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| Institution: | 1. Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 3. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | In the framework of the development of IMO New Generation Intact Stability Criteria, the paper is aimed to analyze a simplified and probability approach suitable for 2nd level vulnerability assessment in dead ship condition. 1-DOF model is applied to solve roll motion of the vessel CEHIPAR2792, with wind and waves taken into account. With the results obtained, according programs are combined to calculate the capsize probability in given condition and average failure index in given region, meanwhile the index is compared with the draft data. Finally the paper analyzes the effect of different fitting methods of righting arm curve and the residual GM, and gives some amendments to the process of 2nd level vulnerability assessment in dead ship condition. |
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| Keywords: | 2nd level vulnerability assessment in dead ship condition capsize probability average failure index |
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