| LNG船液舱围护系统结构极限承载力研究 |
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| 引用本文： | 滕蓓,陆晔,祁恩荣. LNG船液舱围护系统结构极限承载力研究[J]. 舰船科学技术, 2012, 34(2): 36-39,54 |
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| 作者姓名： | 滕蓓 陆晔 祁恩荣 |
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| 作者单位： | 1. 江苏省无锡交通高等职业技术学校,江苏无锡,214151
2. 中国船舶科学研究中心,江苏无锡,214082 |
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| 基金项目： | 工信部“十一五”高技术船舶科研项目 |
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| 摘 要： | 在船舶尺度和营运状态与传统条件发生很大变化的情况下,大型液化天然气船(LNG)液舱晃荡研究显得尤为重要。本文首先介绍了LNG船液舱围护系统的结构特点,然后以15.68万立方LNG船液舱围护系统结构为对象,采用非线性有限元方法计算其极限强度,并比较分析3种边界条件下的结果,最后用试验和解析公式验证本文方法是可行的,适用于工程设计。
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| 关 键 词： | LNG船 液舱围护结构 极限强度 非线性有限元 |
Research on ultimate limit state for liquid natural gas cargo containment system |
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| TENG Bei , LU Ye , QI En-rong. Research on ultimate limit state for liquid natural gas cargo containment system[J]. Ship Science and Technology, 2012, 34(2): 36-39,54 |
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| Authors: | TENG Bei LU Ye QI En-rong |
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| Affiliation: | 1.Wuxi Institute of Communications Technology,Wuxi 214151,China; 2.China Ship Scientific Research Center,Wuxi 214082,China) |
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| Abstract: | Tank sloshing study of large liquefied natural gas(LNG)carriers is very important when ship size and working state change vastly.This paper described the characteristics of liquid natural gas cargo containment system structure,calculated the ultimate limit state of 156 800 cubic meters of liquid natural gas cargo containment system structure using nonlinear finite element,and analyzed comparably results of three kinds of boundary conditions.Finally the nonlinear finite element method proved by test and formula which is feasible for engineering design. |
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| Keywords: | LNG cargo containment system structure ultimate limit state nonlinear finite element |
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