会議発表論文 Passive and active piezoelectric effects on flutter suppression of highly flexible wings

Tsushima, Natsuki  ,  Su, Weihua  ,  津島, 夏輝  ,  Su, Weihua

内容記述
The paper addresses both active and passive flutter suppression for highly flexible wings using piezoelectric transduction. The piezoelectric effect is included in a strain-based geometrically nonlinear beam formulation. The resulting structural dynamic equations for multifunctional beams are then coupled with a finite-state unsteady aerodynamic formulation, allowing for piezoelectric energy harvesting and actuation with the nonlinear aeroelastic system. With the development, it is possible to provide an integral aeroelastic and electromechanical solution of concurrent active piezoelectric control on and energy harvesting from wing vibrations, with the consideration of the geometrical nonlinear effects of the slender multifunctional wings. The energy harvesting system can provide an additional damping effect on the wing as well as its harvesting capability. In this paper, an LQG controller is developed for the active control of wing limit-cycle oscillations due to the onset of flutter instability. The controller demonstrates effective flutter control capability. Furthermore, a concurrent active vibration control and energy harvesting can also be realized for the multifunctional wing system with embedded piezoelectric materials.
Meeting Information: First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan
Physical characteristics: Original contains color illustrations
形態: カラー図版あり
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https://repository.exst.jaxa.jp/dspace/bitstream/a-is/612451/1/AA1630046006.pdf

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