风机安装船动力定位数值模拟和模型试验研究

Numerical simulation and model test research on dynamic positioning of wind turbine installation vessel

以某典型风机安装船为例,在GeniE软件中对该型船舶主船体和桩腿进行结构建模,运用软件HydroD进行频域运动响应计算,再将计算结果作为输入参数运用OrcaFlex软件对船舶进行动力定位定点作业数值仿真分析。数值计算结果表明,在150~180°环境力方向下船舶定位效果最理想,一组推进器失效的工况下船舶仍能保持动力定位效果。因此针对船舶装载三套风机设备时处于150°和165°环境力方向的工况开展水池模型试验,并将实验结果和数值结果进行对比,为实际海上工程作业提供理论指导。

Taking a typical WTIV as an example,the main hull and pile legs are structurally modelled in GeniE soft-ware,and the frequency domain motion response is calculated by HydroD,and then the results of the calculations are used as input parameters for the numerical simulation analysis of the ship's dynamic positioning in OrcaFlex.The numerical calcula-tion results show that the ship's positioning effect is the most ideal under the direction of 150-180 degrees environmental force,and the ship can still maintain the dynamic positioning effect under the working condition of one set of propeller fail-ure.The wave basin test is carried out for the working condition of the ship loading three sets of wind turbine equipment at 150 degrees and 165 degrees of environmental force direction,and the experimental results are compared with the numerical results to provide theoretical guidance for the actual offshore engineering operations.