波-流-冰山耦合作用下平台运动响应特性研究  

Research on Motion Response of Platform under Wave-Current-Iceberg Coupling Condition

作　　者：石玉云 廖阔 陈乃哲 李志富 SHI Yuyun;LIAO Kuo;CHEN Naizhe;LI Zhifu(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,China;Hudong Zhonghua Shipbuilding(Group)Co.,Ltd.,Shanghai 200129,China;State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,镇江212100 [2]沪东中华造船(集团)有限公司,上海200129 [3]大连理工大学海岸和近海工程国家重点实验室,大连116024

出　　处：《中国造船》2024年第5期121-135,共15页Shipbuilding of China

基　　金：国家自然科学基金项目(52101315,52071162,12372242)。

摘　　要：对遭遇冰山的极地海洋浮式平台,需计及波浪及冰山漂移运动对其水动力的耦合作用,以保证作业安全。论文基于计算流体力学建立数值波浪水池,利用重叠网格技术考察波-流-冰山耦合作用下的Sevan FPU-Ice浮式平台运动及系泊特性。研究表明,横向漂移的冰山对平台横荡、横摇和纵摇运动的作用较为显著,且平台系泊张力最大值大幅增加;冰山漂移速度的变化在110 s后对平台横荡运动的影响变得显著,但对平台系泊张力的影响较小;冰山尺寸及冰山与海洋平台间的距离等参数不仅影响平台初始横荡运动方向,而且影响平台的艏摇运动和系泊张力。Coupled hydrodynamic effects of wave,current,and iceberg drift should be considered when an offshore platform operates in the polar region.Based on computational fluid mechanics a numerical wave tank is established,and the overlapping grid technology is adopted to simulate a drifting iceberg parallel with a moored floating Sevan FPU-Ice platform.The motion and mooring characteristics of the platform suffering the coupling effect of wave-current-iceberg are studied.The existence of a drifting iceberg mainly affects the sway,roll,and pitch motion of the platform,and the maximum mooring forces increase sincerely compared to that in open water.The drift speed rarely changes the maximum mooring forces.Parameters such as the size of the iceberg and its distance to the platform may change the initial direction of the sway,and present a positive correlation to the yaw of the platform.In addition,the maximum mooring forces are deeply affected by the size and distance.

关 键 词：波浪 海流 冰山 系泊浮式平台 

分 类 号：U661.1[交通运输工程—船舶及航道工程]