Rotational Motions Excited by Vertical Harmonic Motions

Tadokoro Chiharu, Kadowaki Kei, Mori Hiroki, Nagamine Takuo

研究成果: Contribution to journalArticle査読

抄録

Rotation of a pair of wings was driven by the vertical harmonic motion of a pin inserted into the center hole of the wings. To elucidate the mechanism by which the rotational motion of the wings was excited, the relationship between the wings and the pin was examined by tracking their motions using both displacement measurements and high-speed photography. The motion modes occurred in this study were categorized into five types: slipping, rolling, jumping (without eccentricity), jumping (with eccentricity), and non-rotation. In the case that the hole of the wings was located at a distance from the center of the wings, referred to as ″with eccentricity, ″ the slipping, jumping (with eccentricity), and non-rotation modes resulted. The experimental results showed that the mechanism of the jumping (with eccentricity) was different from that of the other modes (slipping, rolling, jumping (without eccentricity)), which are well known to be driven by the periodical reaction of the wings against the vertical vibration of the pin. It was found that the jumping (with eccentricity) was driven by the non-periodical force with the collision between the wing hole and the pin.

本文言語英語
ページ(範囲)51-57
ページ数7
ジャーナルTransactions of Nanjing University of Aeronautics and Astronautics
35
1
出版ステータス出版済み - 2 1 2018

All Science Journal Classification (ASJC) codes

  • 航空宇宙工学
  • 宇宙惑星科学

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