| 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（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 (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。并详细分析了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。 |
| 关键词: 高等级海况 移动式海上基地 动力响应 |
| DOI： |
| 分类号:P751 |
| 基金项目:国家自然科学基金(51279128)；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（2013328224070） |
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| Hydrodynamic Response of Mobile Offshore Base under High Sea States |
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WU Lin-jian,WANG Yuan-zhan and LI Yi
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Tianjin, China,National Key Laboratory of Water Conservancy Engineering Simulation and Security,Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Tianjin University,Tianjin, China,School of River and Ocean Engineering Chongqing Jiaotong University,Chongqing, China
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| Abstract: |
| This paper investigates the hydrodynamic response of mobile offshore base(MOB) with rigid modules and flexible connectors under high sea states, which the MOB is one of the typical structural style of semi-submersible type very large floating structures. The dynamic response results of each modules under random wave of sea state 6(SS6), sea state 7(SS7), and sea state 8(SS8) were solved respectively based on the theory of structural dynamics through the process of theoretical derivation. The change rules of hydrodynamic response displacements of the same module under different high sea states were analyzed detailedly, and various of wave angles and stiffness of connectors were considered. The achievements can provide the significant technical support for discussing the hydrodynamic response and optimal design of semi-submersible type very large floating structures. |
| Key words: high sea state mobile offshore base hydrodynamic response |