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A chaotic vibration energy harvester using magnetic material

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タイトル: A chaotic vibration energy harvester using magnetic material
著者: Sato, Takahiro 著作を一覧する
Igarashi, Hajime 著作を一覧する
キーワード: energy harvesting
electromagnetic harvester
wideband harvester
chaotic oscillation
発行日: 2015年 1月23日
出版者: IOP Publishing
誌名: Smart materials and structures
巻: 24
号: 2
開始ページ: 25033
出版社 DOI: 10.1088/0964-1726/24/2/025033
抄録: This paper presents a new wideband electromagnetic vibration energy harvester (VEH) composed of a magnetic core embedded into the coil axis. The magnetic core generates a nonlinear magnetic force, which gives rise to the nonlinearity in the behavior of the VEH. Moreover, the magnetic core increases the flux linkage with the coil. These features improve the operational bandwidth and output power of the VEH. Numerical analysis and experimental measurements reveal that the operational bandwidth of the proposed VEH is over 30 Hz in which the output power is kept about 0.1 mW. Moreover, the proposed VEH operates by complicated oscillation due to nonlinear forces acting on the oscillator. Evaluation of the Lyapunov exponent for the measured oscillation suggests that the proposed VEH produces chaotic oscillation.
Rights: This is an author-created, un-copyedited version of an article accepted for publication in Smart materials and structures. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 五十嵐 一


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