Experimental considerations on fabrication of smart actuator for vibration control using Shape Memory Alloy (SMA)

Kaori Yuse, Yoshihiro Kikushima, Ya Xu

研究成果: Conference article査読

6 被引用数 (Scopus)

抄録

Despite its great potentials, having a large displacement and force compared to traditional electro-hydraulic servo mechanical actuators or to PZT actuators, there are not so many studies on SMA 'active' actuator. The main reasons are considered as following; (1) SMA has transformation only in one direction, (2) the response is quite slow, and (3) vibration control requires punctual thermo control in real time. In the study at our laboratory, the vibration can be clearly separated into different modes by distributed cluster system. SMA actuators are, then, proposed to use with PZT actuators for control of low and high frequency modes, respectively, to realize all-round actuation. The purpose of this paper is to realize SMA 'active' actuator for low frequency modes. First of all, actuators using SMA wires, partly embedded in CFRP, were fabricated in consideration of SMA/FRP interfacial strength. Their thermo-mechanical behavior had been studied with cooling system. These lightweight actuators were placed on beam structure made of CFRP. Recovery force of beam structure itself was used as reactive force against force generated by SMA. As a result, actuator which is favorable for low frequency vibration modes control, i.e. having a large displacement and a large force, was obtained.

本文言語English
ページ(範囲)382-392
ページ数11
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4697
DOI
出版ステータスPublished - 2002
外部発表はい
イベントSmart Structures and Materials 2002: Damping and Isolation - San Diego, CA, United States
継続期間: 2002 3月 182002 3月 20

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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