Wave Response Experiment on SPAR-type Floating Bodies for Offshore Wind Turbine

摘要

It is strongly desired to develop a cost-effective wind turbine system ofrnfloating-type in order to gain the renewable energy resources. In thisrnstudy, the SPAR-type floating foundations using reinforced concreternare examined. The regular and irregular wave experiments arernperformed for 1/100 scale models of the prototypes. Three models arernexamined, that is, a uniform cylinder moored at the gravity center, arnuniform cylinder moored at the upper position and a stepped-typernfloating cylinder moored at the upper position. The experimental resultsrnare compared with numerical predictions using potential theory andrnMorison's equation. The stepped-type floating cylinder moored at thernupper position has shown smaller motions than the uniform cylinders.