Active vibration control for thin curved structures using dielectric elastomer actuators

Toshiki Hiruta, Hiroki Ishihara, Naoki Hosoya, Shingo Maeda, Kentaro Takagi, Itsuro Kajiwara

研究成果: Article査読

抄録

This study proposes an active vibration control technique for pipe structures using dielectric elastomer actuators (DEAs). Vibrations in pipe structures must be eliminated to improve their mechanical reliability, and active vibration control techniques can be applied for effective vibration suppression. Soft actuators, which can completely fit pipe structures with complex-shaped surfaces, are required to transfer their vibration reduction forces to the target. DEA is suitable for this kind of target structure because DEA is characterized by high stretchability, flexibility, large deformation, and fast response. By applying the DEA, the effectiveness of vibration control for the pipe structure was experimentally demonstrated. A stacked DEA was fabricated and attached to the target structure. Its shape and placement were determined based on a modal analysis of the target structure. A control system, in which the controller for the active vibration control was designed based on H ∞ control theory, was composed. The vibration control experiment was conducted using the controller with a digital control system, and the vibration reduction effect was evaluated based on the frequency response of the target pipe structure.

本文言語English
論文番号035047
ジャーナルSmart Materials and Structures
33
3
DOI
出版ステータスPublished - 2024 3月

ASJC Scopus subject areas

  • 信号処理
  • 土木構造工学
  • 原子分子物理学および光学
  • 材料科学一般
  • 凝縮系物理学
  • 材料力学
  • 電子工学および電気工学

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