Measuring differential pressures with multiple MEMS sensors during takeoff of an insect-like ornithopter

DOI Web Site 被引用文献3件 参考文献23件
  • TAKAHASHI Hidetoshi
    Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo
  • SATO Ken
    Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo
  • MATSUMOTO Kiyoshi
    Information and Robot Technology Research Initiative, The University of Tokyo
  • SHIMOYAMA Isao
    Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo Information and Robot Technology Research Initiative, The University of Tokyo

抄録

In this study, the differential pressure distribution on the wing surface of an insect-like ornithopter was measured directly. Three microelectromechanical system (MEMS) differential pressure sensors were attached to a wing surface in the spanwise direction. The wing length, flapping frequency, and total weight of the ornithopter were 110 mm, 15 Hz, and 7.1 g, respectively. The attachment points corresponded to 25%, 50% and 75% of the wing length and 20% of the length of the wing chord. The ornithopter took off in anterosuperior mode without yawing or rolling. At takeoff, the flapping motion of the wing induced a periodic differential pressure between the upstroke and downstroke. The average values of the maximum differential pressures were 23.5 ± 3.5 Pa, 45.2 ± 3.4 Pa, and 96.7 ± 10.0 Pa at the wing root (WR), wing center (WC), and wing tip (WT), respectively. The maximum differential pressures shifted from the WT to WR in the spanwise direction. These results reflected the aerodynamic forces acting on the insect-like ornithopter during takeoff.

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