FLNG液货舱晃荡载荷数值模拟与模型试验  

Numerical simulation and model experimental on the sloshing load of FLNG cargo tank

作　　者：李恩道[1] 程昊[1] 李方遒 邓晨庆 LI Endao;CHENG Hao;LI Fangqiu;DENG Chenqing(CNOOC Gas and Power Group,Beijing 100028,China)

机构地区：[1]中海石油气电集团有限责任公司,北京100028

出　　处：《舰船科学技术》2024年第22期45-51,共7页Ship Science and Technology

基　　金：国家863计划资助项目(2013AA09A216);工信部资助项目(CBG3N21-2-6)。

摘　　要：FLNG(Floating Liquefied Natural Gas)浮式天然气液化生产储存装置生产过程中连续装载,需要在不同液位状态下适应各种复杂海况条件所产生的冲击载荷。对货物围护系统的设计提出更高要求。本文对FLNG的液货舱进行晃荡数值分析,并采用水介质进行典型装载工况下各自由度的液货舱晃荡试验研究,得到压力监测点上的晃荡载荷。同时观测自由面运动形态,分析LNG液货舱不同液位下晃荡特性及冲击压力影响,并将模型试验结果换算至实船参数,得到货物围护系统可能产生的最大压强,为实船设计和货物围护系统材料选择提供依据。Continuous loading during FLNG production requires cargo containment system to fit the impact loads generated by various complex sea conditions at different liquid levels.Higher requirements have been put forward for the design of cargo containment systems.A numerical analysis of the sloshing of FLNG's cargo tanks,and a experimental research on the sloshing of cargo tanks with various degrees under typical loading conditions was carried out using water medium.The sloshing load at the pressure monitoring point is obtained.Simultaneously observe the free surface motion morphology,analyze the sloshing characteristics and impact pressure effects of LNG cargo tanks at different liquid levels.Finally,the model experimental results are converted to the actual ship parameters to obtain the maximum pressure that may generate by LNG in the cargo containment system.This provides a basis for the design of actual FLNG and the materials selection of the cargo containment system.

关 键 词：FLNG 货物围护系统 晃荡载荷 

分 类 号：U663.8[交通运输工程—船舶及航道工程]