B型LNG船货舱结构强度分析  

Strength Analysis on the Tank Structure of a Type B LNG Carrier

作　　者：张玉奎[1] 郑文青[1] ZHANG Yu-kui;ZHENG Wen-qing(Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船舶与海洋工程》2018年第4期26-30,共5页Naval Architecture and Ocean Engineering

基　　金：高技术船舶科研计划支持项目(工信部联装[2012]534号)

摘　　要：对采用B型货物围护系统的170000m^3液化天然气(Liquefied Natural Gas,LNG)运输船货舱的结构强度进行分析,该船的特点是液货舱依靠自身支撑,与船体仅通过支座相连。为保证LNG货物的安全,液货舱结构本身需具有足够的强度。参照美国船级社的相关要求,采用有限元法校核液货舱的结构强度,给出需重点关注的高应力区域和优化建议及支座支撑力的分布特点。This paper performed strength analysis on the tank structure of a 170000m3 Liquefied Natural Gas(LNG)carrier with type B cargo containment system.A feature of the ship is its liquid tanks are self-supporting and connected to the hull only by means of the seat.To ensure the safety of LNG cargo,the finite element method is adopted to check the structure strength of the liquid cargo tanks in accordance with the requirements of American Bureau of Shipping(ABS)to determine the high stress regions that require major attention,to provide suggestions for optimization and to obtain the distribution characteristics of the seat supporting forces.

关 键 词：LNG船 B型货物围护系统 有限元法 强度 

分 类 号：U661.43[交通运输工程—船舶及航道工程]