C型独立液货舱结构强度有限元分析  

Finite Element Analysis of Structural Strength of a Type C Cargo Tank

作　　者：郑光洪 蒋军 庄科挺 崔兵兵 ZHENG Guanghong;JIANG Jun;ZHUANG Keting;CUI Bingbing(China Oilfield Services Limited,Beijing 100005,China;Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China)

机构地区：[1]中海油田服务股份有限公司,北京100005 [2]上海船舶研究设计院,上海201203

出　　处：《船舶设计通讯》2023年第1期69-76,共8页Journal of Ship Design

摘　　要：根据挪威船级社(DNV)规范要求,采用MSC Patran&Nastran软件,对某5 000 m3液化天然气船的C型独立液货舱结构进行了整体的和局部高应力区细化的有限元强度分析。有限元强度计算工况包括了极限运营载荷工况、事故载荷工况、试验工况、晃荡工况以及货舱装载工况等。相关计算模型的建立、计算工况的选取、各个工况下的载荷的确定和计算结果对C型独立液货舱的设计有一定的参考价值。According to DNV rules,global finite element analysis(FEA) of overall structure and refined mesh FEA of highly stressed areas had been carried out for a 5 000 m3LNG carrier's type C cargo tank by MSC Patran Nastran software.The finite element strength calculation conditions included extreme operating load conditions,accident load conditions,test conditions,sloshing conditions,and cargo loading conditions.The establishment of relevant calculation models,selection of calculation conditions,determination of loads under various conditions,and calculation results might have certain reference value for the design of Type C independent cargo tanks.

关 键 词：C型独立液货舱 有限元分析 动压力 合成加速度 

分 类 号：U661.43[交通运输工程—船舶及航道工程]