联运液化天然气(LNG)罐箱内容器与外壳连接结构优化设计  

Optimization Design of Connecting Structure between Inner Vessel and Outer Jacket for Mutimodal Transport Liquified Natural Gas( LNG) Tank

作　　者：姚志燕[1] 何远新 李永泰[1] 吴晓红[1] 郭春光[1] 

机构地区：[1]合肥通用机械研究院国家压力容器与管道安全工程技术研究中心,安徽合肥230031 [2]西安轨道交通装备有限责任公司,陕西西安710086

出　　处：《压力容器》2014年第12期23-30,46,共9页Pressure Vessel Technology

摘　　要：对一台联运LNG罐式集装箱的内容器外壳连接结构进行了强度计算和应力分析。根据计算结果,对应力水平较高的内容器固定端支撑座结构和外壳下部滑动端支撑罩结构进行了改进,改进后的罐箱内容器和外壳支撑罩结构最大应力水平有较大幅度的降低,能够满足设计工况的要求。Strength calculation and stress analysis were conducted for the connecting structure between inner vessel and outer jacket of a multimodal transport LNG tank.According to the calculation results, the structures with high stress,namely the supporting seat at the fixed end of the inner vessel and the supporting cover at the slideable end of the outer jacket lower part,were optimized.The stress of the im-proved structures of the LNG tank were greatly reduced,which can meet the design requirements and norms.

关 键 词：液化天然气(LNG)罐箱 有限元 优化设计 

分 类 号：TH49[机械工程—机械制造及自动化] TH122