Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 11, 2020 - November 13, 2020
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 (Prms)max = 1.8 mW, which is larger than the other test models.
