内河船用C型LNG储罐横倾工况结构强度分析与校核  

Analysis and Check of Structure Strength of Type C LNG Storage Tank for Inland Vessel under Heeling Operation Condition

作　　者：温小飞 王虎强 汪家政 李川江 刘赟德 WEN Xiaofei;WANG Huqiang;WANG Jiazheng;LI Chuanjiang;LIU Yunde(School of Naval Architecture and Maritime,Zhejiang Ocean University,Zhoushan 316022,Zhejiang,China;Zhejiang Hailida Environmental Protection Technology Co.,Ltd.,Zhoushan 316052,Zhejiang,China;Zhoushan Changhong International Shipyard Co.,Ltd.,Zhoushan 316052,Zhejiang,China)

机构地区：[1]浙江海洋大学船舶与海运学院,浙江舟山316022 [2]浙江海骊达环保科技有限公司,浙江舟山316052 [3]舟山长宏国际船舶修造有限公司,浙江舟山316052

出　　处：《造船技术》2024年第6期1-5,共5页

基　　金：浙江省重点研发计划项目(编号:2021C03184)。

摘　　要：针对船用液化天然气(Liquefied Natural Gas,LNG)储罐的结构强度计算问题,以18 m^(3)内河船用C型LNG储罐为例,建立有限元分析模型。设定横倾工况相应的载荷边界条件并进行仿真计算,具体分析储罐应力集中区域,并校核不同横倾工况条件下的储罐结构强度。结果表明,储罐各构件的应力强度均在许用值内,但在局部结构不连续处易出现应力集中现象。研究结果可为相关船舶LNG储罐结构设计提供参考。In view of the calculation problem of structure strength of marine Liquefied Natural Gas(LNG)storage tank,a finite element analysis model is established with 18 m^(3)Type C LNG storage tank for inland vessel as an example.The load boundary conditions corresponding to heeling operation conditions are set up to make a simulation calculation,the stress concentration area of storage tank is concretely analyzed,and the structure strength of storage tank under different heeling operation conditions is checked.The results show that the stress intensity of each member of storage tank is within the allowable value,but the phenomenon of stress concentration is easy to occur in the local structural discontinuities.The research results can provide reference for the structure design of LNG storage tank on relevant ships.

关 键 词：内河船用C型LNG储罐 横倾工况 结构强度 强度分析 强度校核 

分 类 号：U661.43[交通运输工程—船舶及航道工程]