FLNG液舱晃荡压力影响因素及安全性评估研究  

Research on influencing factors and safety evaluation for sloshing-induced-pressure in FLNG liquid tanks

作　　者：张东伟[1] 胡志强[1] 陈刚[2] 赵晶瑞[3] 

机构地区：[1]上海交通大学海洋工程国家重点试验室,上海200240 [2]中国船舶及海洋工程设计研究院,上海200011 [3]中国海洋石油总公司研究总院,北京100027

出　　处：《海洋工程》2015年第6期26-34,共9页The Ocean Engineering

基　　金：国家科学技术重大专项资助项目(2011ZX05026-006-05);国家自然科学基金重点项目(51239007)

摘　　要：针对大型浮式液化天然气储卸生产装置FLNG的液舱晃荡压力变化特征,在深水试验池中开展带液舱模型的FLNG水池模型试验研究。通过试验,获得了FLNG在风浪流联合作用下的浮体六自由度运动,以及相应的液面高度变化数据。通过液舱的液面高度变化数据,提出平液面假设,并在此基础上,求得液舱晃荡引起的舱壁压力变化结果。研究中进一步讨论了液舱晃荡压力的影响因素,并将试验数据与CCS船级社规范计算结果进行对比,为FLNG液舱晃荡压力引起的结构安全性评估提供技术支持。On purpose of mastering the variation characteristics of sloshing-induced-pressure in liquid tanks of Floating Liquid Natural Gas （FLNG）, a model test with liquid tanks was fulfilled in the Deepwater Offshore Basin in Shanghai Jiao Tong University. The 6-DOF motion of FLNG and the variation data of liquid surface height were obtained. A plane liquid surface hypothesis is proposed based on the test results, and then sloshing-induced-pressure on the liquid tank bulkhead can be carried out. The influencing factors of sloshing-induced-pressure in liquid tanks are analyzed and discussed. Furthermore, the experimental data and calculated results based on CCS rules are compared to provide technical support for the structural safety evaluation induced by sloshing pressure in FLNG tanks.

关 键 词：FLNG 液舱晃荡压力 平液面假设 安全性评估 影响因素 液面高度 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]