船体结构剩余强度评估方法研究  

Research on Assessment Method of Residual Strength of Hull Structure

作　　者：赵健[1] 伍友军[2] 周博[2] ZAHO Jian WU You-jun ZHOU BC(The Military Mission in Shanghai Area of Naval Gun System, Shanghai 200135, China Marine Design ＆ Research Institute of China, Shanghai 200011, China)

机构地区：[1]海军驻上海地区舰炮系统军事代表室,上海200135 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船舶设计通讯》2016年第2期54-59,共6页Journal of Ship Design

摘　　要：在设计阶段对船体可能发生的破损情况和剩余强度进行分析。根据分析结果优化结构设计,可以有效地提高船舶破损后的生存概率。以某双壳油船为例,采用SMITH法和非线性有限元法,计算破损后船体的剩余承载能力,比较2种计算方法的计算原理和结果。采用规范计算和直接预报的方式对船体破损后的波浪载荷进行预报。采用确定性方法和可靠性方法对破损船船体结构剩余强度进行评估,给出了实际应用中的使用建议。In the event of the research on potential damage scenarios and residual strength of hull structure during the detail design stage, the optimized structure design in accordance with the analysis result could effectively improve the survival probability after the ship is damaged. Taking a double hull tanker as an example, the paper calculated the residual bearing capacity of the damaged hull with both SMITH and nonlinear FEA method and compared different calculation principles and results. The wave loads on the damaged hull were predicted by the method of standard calculation and direct calculation and the residual strength of damaged ship hull structure was evaluated based on the certainty and reliability method, putting forward the suggestions for the practical application.

关 键 词：剩余强度 SMITH法 波浪载荷 非线性有限元法 可靠性评估方法 

分 类 号：U661.4[交通运输工程—船舶及航道工程]