超大型浮体单模块在浅水斜底系泊下的动态响应  

Dynamic response of a moored VLFS's single module in shallow water and sloped seabed

作　　者：徐剑峰 徐胜文[1,2,3] 汪学锋 王磊[1,2,3] 丁爱兵 XU Jian-feng, XU Sheng-wen, WANG Xue-feng, WANG Lei, DING Ai-bing(1. State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration （CISSE）, Shanghai 200240, China; 3. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]高新船舶与深海开发装备协同创新中心(船海协创中心),上海200240 [3]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《舰船科学技术》2018年第1期75-80,共6页Ship Science and Technology

基　　金：国家重点基础研究发展计划资助项目(2013CB036103);工信部高技术船舶科研资助项目(浮式保障平台工程(二期));国家重点研发计划资助项目(2016YFC0303405);上海市青年科技英才扬帆计划资助项目(17YF1409700)

摘　　要：岛礁附近的海域通常水深极浅且海底为斜坡,在这类海域中,浮式结构物对环境载荷的动态响应与其在深水中的表现会有较大差别。本文研究超大型浮体的单模块在浅水斜底海域中对风浪载荷的动态响应,分别通过Orca Flex数值计算和模型试验得到了单模块横荡和横摇运动的时历及统计数据以及锚链张力的统计结果。结果显示定常风对单模块运动的稳定性以及锚链的最大张力影响较小,而波浪载荷对单模块运动及锚链最大张力都有显著的影响。Waters around the islands is usually very shallow and has a sloped seabed.The hydrodynamic performance of a floating structure in this environment could be very different from its performance in deep water.This paper investigates the dynamic response of a very large floating structure＇s single module over an uneven seabed in shallow water.The time-domain motions,and the statistical results of sway and roll motion are respectively obtained by numerical simulations in Orca Flex and model tests,as well as the line tension statistical results.Results show that the constant wind has little effect on the motion stability and the maximum line tension,while the wave loads have significant influence on the module＇s motions and the maximum line tension.

关 键 词：超大型浮体 浅水斜底 动态响应 系泊 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]