We propose a flight system which gains thrust by rotating the magnetized wings in an alternating magnetic field. The merit of a rotating wing, compared to a flapping wing, is that it is easy to fabricate and easy to analyze aerodynamically. The theoretical analysis shows the advantage of this system in microscale. We have done experiments with large-scale models consisting of magnetic rotating wings made from nickel (or iron) and a tiny pin attached to the center, which rotates in a small glass tube that serves as a bearing. The iron rotating wings whose wing length is 5 mm could fly upwards at a rotating frequency of 160 Hz. Theoretically, the frequency necessary for flight is inverse proportion to wing length R. However, in the experiments the frequency was proportion to R/sup -0.8/. The Reynolds number of the air flow around the rotating wings is less than 5×103.
|ジャーナル||Proceedings - IEEE International Conference on Robotics and Automation|
|出版ステータス||Published - 1998|
|イベント||15th IEEE International Conference on Robotics and Automation, ICRA 1998 - Leuven, Belgium|
継続期間: 1998 5月 16 → 1998 5月 20
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