著者

須藤 誠一 菅 康彦 矢野 哲也 露木 浩二

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 B編 (ISSN:03875016)

巻号頁・発行日

vol.73, no.736, pp.2440-2449, 2007-12-25 (Released:2011-03-03)

参考文献数

22

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The swimming behavior of small aquatic insects was analyzed by a digital high speed camera system. The test aquatic insects were some kinds of water beetles. It was found that the average thrust force of water beetles arises from the drag difference between the power stroke and the recovery stroke in beating movement of their hindlegs. A swimming mechanism based on the kinematic analysis of water beetle swimming was designed and produced. A swimming mechanism was composed of polystyrene foam resin body, permanent magnet, and polyethyleneterephthalate film fin. A swimming mechanism was driven by the magnetic torque acting on the permanent magnet in the alternating magnetic field. Locomotion characteristics of a swimming mechanism were studied. It was found that the swimming velocity of the mechanism depends on the frequency of alternating magnetic field. The flow field around a swimming mechanism was visualized by slow shutter speed photograph. Experimental data are useful to design of micro swimming robot.