Characteristic evaluation of a bristled wing using mechanical models of a thrips wings with MEMS piezoresistive cantilevers

DOI Web Site 被引用文献4件 参考文献16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
  • NGUYEN Minh-Dung
    Information and Robot Technology Research Initiative, 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

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This paper discusses similar-scale mechanical models of a thrips wing using microelectromechanical systems (MEMS) piezoresistive cantilevers to quantitatively evaluate bristled wing characteristics. Each cantilever had combs with varying widths and neighboring gaps that were adjusted so that a constant surface area was maintained. The cantilever body was 1,324 × 256 × 5 μm3 in size. An aerodynamic drag force from the airflow applied to the cantilever surface was measured using the fractional resistance change of the piezoresistor due to the cantilever's deformation. The aerodynamic characteristics of each model were evaluated in a wind tunnel with airflow velocities between 1.2 and 5.6 m/s. The experimental results suggest that at a lower comb-width-based Reynolds number that was approximately equal to that of a bristled wing of a thrips, the comb areas of the cantilever act as an airflow suppression due to boundary layer effects, which results in an increased aerodynamic force.

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