高等级海况条件下移动式海上基地动力响应分析  

Hydrodynamic response of a mobile offshore base under high sea states

作　　者：李青美[1] 吴林键[1] 王元战[1] 肖忠[1] 李怡[2] LI Qing-mei WU Lin-jian WANG Yuan-zhan XIAO Zhong LI Yi(State Key laboratory of Hydraulic Engineering Simulation and Safety, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Tianjin University, Tianjin 300072, China School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,高新船舶与深海开发装备协同创新中心,天津300072 [2]重庆交通大学河海学院,重庆400074

出　　处：《海洋科学》2016年第8期129-137,共9页Marine Sciences

基　　金：国家自然科学基金(51279128,51479133);国家自然科学基金创新研究群体科学基金(51321065);交通运输部交通建设科技项目(2014328224040)~~

摘　　要：针对半潜式超大型浮式结构中典型的移动式海上基地(Mobile Offshore Base,MOB)在高等级海况下的动力响应问题展开研究。在MOB结构"刚性模块-柔性连接构件(Rigid Modules and Flexible Connectors,RMFC)"模型的前提下,根据动力学基本原理,经理论推导并计算得到MOB分别在6、7、8级海况的随机波激励下,其上各模块的动力响应位移结果。详细分析了MOB结构同一模块在不同海况条件下的动力响应位移随浪向角及连接构件刚度的变化规律。研究成果可为半潜式超大型浮式结构动力响应研究及结构优化设计提供一定的技术支撑。This study investigates the hydrodynamic response of a mobile offshore base （MOB） with rigid modules and flexible connectors under high sea states, where the MOB is a typical, semi-submersible, and very large floating structure. The dynamic response results of each module under the random waves of sea states 6 （SS6）, 7 （SS7）, and 8 （SS8） were solved based on the theory of structural dynamics and using theoretical derivation. The change rules of the hydrodynamic response displacement of the same module under different high sea states were specifically ana-lyzed, and various wave angles and the connector stiffness were considered. These results provide significant tech-nical support for hydrodynamic response determination and the optimal design of semi-submersible and very large floating structures.

关 键 词：高等级海况 移动式海上基地 动力响应 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]