| 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。 |
| 关键词: 高等级海况 移动式海上基地 动力响应 |
| DOI：10.11759/hykx20151113001 |
| 分类号: |
| 基金项目: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) |
|
| Hydrodynamic response of a mobile offshore base under high sea states |
|
LI Qing-mei,WU Lin-jian,WANG Yuan-zhan,XIAO Zhong,LI Yi
|
| Abstract: |
| 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 analyzed, and various wave angles and the connector stiffness were considered. These results provide significant technical support for hydrodynamic response determination and the optimal design of semi-submersible and very large floating structures. |
| Key words: high sea state mobile offshore base hydrodynamic response |
