近岛礁浮式平台水动力及运动响应特性研究

Research on hydrodynamic and motion response characteristics of floating platforms near islands

根据某近岛礁地形实测数据,基于Solidworks软件完成海底地形和浮式平台的三维建模,建立近岛礁浮式平台三维水动力学模型;开展浮式平台的水动力计算及系泊模式下浮式平台波浪中的运动响应预报,给出了浮式平台的传递函数、系泊缆张力和运动响应;分析了入射波角度、周期及岛礁地形对浮式平台水动力、系泊缆张力分布和运动响应的影响.将数值计算结果与模型试验值进行对比,两者吻合较好,对近岛礁海上浮式结构物的设计有参考价值.

Based on the measured topographic data of a certain terrain near islands and reefs,the 3 D modeling of submarine topography and floating platform is completed by Solidworks and the three-dimensional hydrodynamic model of the floating platform is built. On the one hand,the transfer function of the floating platform,the tension of the mooring cable and the motion response are given according to the calculation of the hydrodynamic force of the floating platform and the prediction of the motion response of the floating platform. On the other hand,the influence of the incident wave angle,the period and the terrain of the islands and reefs on the hydrodynamic force of the floating platform,the mooring cable tension distribution and the motion response are analyzed. As a result,the numerical results are in good agreement with the experiments. The results of this paper can provide guidance for the design of offshore floating structures near islands.