石油与天然气化工2023，Vol.52Issue(6)：53-59,7.DOI:10.3969/j.issn.1007-3426.2023.06.008
LNG薄膜罐主容器的轻量化设计
Lightweight design of main container of LNG film tank
摘要
Abstract
Objective Through reducing the total mass of the main container of LNG film tank,the development and market expansion of LNG storage facilities are promoted.Methods The basic geometric parameters of the main container of the film tank are designed,and the mathematical model of the tank and the required objective function are established.The stress of the tank in the full tank state is analyzed and calculated,and the basic geometric data is parameterized and the thickness of the tank wall is optimized by ANSYS software.The mathematical model of the dome is solved by using particle swarm optimization algorithm and MATLAB software programming.Results The optimal curvature radius of the dome is 28 000 mm,the minimum thickness of the tank wall is reduced by 0.50 mm,the total mass of the tank roof is reduced by 103 t,and the maximum thickness of the tank wall is reduced by 0.62 mm.Conclusions The optimized calculation results are qualified after the air pressure test,which has important reference value for the lightweight research and cost reduction of LNG film tank.关键词
LNG薄膜罐/曲率半径/受力分析/粒子群算法/轻量化Key words
LNG film tank/curvature radius/force analysis/particle swarm algorithm/lightweight引用本文复制引用
狄骏皓,王琪,郭旭,丁徐强,杨鹏飞..LNG薄膜罐主容器的轻量化设计[J].石油与天然气化工,2023,52(6):53-59,7.基金项目
国家重点基础研究发展计划项目"大型真空液氢球罐及液氢汽车罐车工艺流程设计、关键技术研究及研制"(2020YFB1506203) （2020YFB1506203）
