片持ち弾性支持柱状物体を用いた磁歪式風力振動発電の出力特性

（スパン長さと模型先端形状の影響）

抄録

In order to develop a vibration-power generator using magnetostrictive material and flow-induced vibration, experiments were performed in a wind tunnel for prisms with several span lengths. We focus on transverse vortex-induced vibration for a circular cylinder, and low and high-sped galloping vibrations for rectangular prisms with a side ratio of D/H = 0.2 and 1 (where D is the depth of the prism in the flow direction and H is the height of the prism). The maximum power generation of a short prism is larger than that of a long prism because the short prism has a high characteristics frequency. However, the short prism begins to generate power from a high wind velocity. The cap of prisms has an influence on the characteristics frequency of the test model. The power for a circular cylinder with a span length of 200 mm becomes (P_rms)_max = 1.8 mW, which is larger than the other test models.