抄録
The purpose of this study is to improve the FPED (Flexible Poiezoelectric Device) which we have developed and also to propose an elastic floating unit with a hanging structure using the FPED (EFHAS).The FPED consisting of piezo-electric polymer film (PVDF) is a way of harvesting electrical energy from the ocean power, e.g. tide, current, wave, breaking wave and vortex. In this study, we performed vibration tests of the FPED with a bluff body having a specific gravity in water.We found that the electric power of the FPED with the bluff body is larger than that of the FPED without it. To investigate a mooring type with the FPED generating a maximum electric power, we also compared a floating type with a submerged type. We revealed that the floating type is better than the submerged one. We have developed the EFHAS with the improved FPED to obtain the electric power from ocean energy.
