小功率海上半潜式风机浮式基础群水动力性能研究

Analysis of Hydrodynamic Performance of Semi-submersible Floating Foundation Group

为研究小功率海上风机浮式基础群在锚泊工况下的水动力性能,基于三维势流理论,借助AQWA软件对该浮式基础群进行水动力性能模拟计算,分析群基础之间的柔性连接器刚度及系泊方式对基础群运动响应的影响。通过分析比较发现,该浮式基础群的总体运动响应较为合理,系泊系统的布置和系泊参数的选取符合规范要求。柔性连接器的刚度系数为100k N/m^700k N/m时,整体运动响应变化幅度不大。结果表明,该小尺度浮式基础群的水动力性能满足规范要求,但有待进一步改善,其结果可为小尺度多浮体结构设计提供参考。

In order to study the hydrodynamic performance of small scale offshore wind turbine floating foundation group under mooring conditions,the hydrodynamic performance of the floating foundation group is simulated with the help of commercial software AQWA based on the three-dimensional potential flow theory,and the influence of flexible connector stiffness and mooring mode between the groups on the movement response of the foundation group is analyzed.Through analysis and comparison,the overall motion response of the floating foundation group is more reasonable,the layout of the mooring system and the selection of mooring parameters meet the requirements of the specification,and the result is biased towards safety.When the stiffness coefficient of the flexible connector changes in the range of 100~700 KN/m,the overall motion response does not change greatly.The results show that the hydrodynamic performance of the small scale floating foundation group meets the requirements of the code,but it needs to be further improved.The results can provide reference for the design of small-scale multi-floating structures.