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High-power broadband vibration energy harvesting by a low-loss nonlinear oscillator using diamagnetic levitation

Research Project

Project/Area Number 21K03936
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 20010:Mechanics and mechatronics-related
Research InstitutionKyoto Institute of Technology

Principal Investigator

Masuda Arata  京都工芸繊維大学, 機械工学系, 教授 (90252543)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords環境振動発電 / 非線形振動 / 反磁性 / 磁気浮上 / 電力 / 制御 / 安定化 / 渦電流 / 振動発電 / 反磁性体 / 非線形 / 広帯域
Outline of Research at the Start

永久磁石を用いたコンパクトな非線形磁気ばね振動子に反磁性体による受動的磁気浮上技術を組み合わせた大ストローク・極低損失の非線形磁気浮上磁気ばね振動子を開発し,非線形広帯域振動発電デバイスにおける応答の大域的安定化制御のセルフパワード化を達成する.本研究によって,振動発電技術の広範な実用を妨げている電力-帯域のトレードオフが解消され,振動源の周波数変動に対して頑健な高出力広帯域振動発電デバイス実用化への道が一気に開けることが期待される.

Outline of Final Research Achievements

Vibration energy harvesting is a technology that captures vibration energy ubiquitous in the environment and converts it to electric power. Aiming to raise this technology to a social implementation level, this study presented several technologies for realizing high and broadband power generation performance. First, a design methodology for broadband vibration energy harvesting devices using nonlinear resonators was established, and as an application of this methodology, a procedure for designing resonators with flat power generation within their bandwidth was developed . Next, a method to reduce losses in passive magnetic levitation technology using diamagnetic materials was proposed, and design theory for realizing low-loss nonlinear oscillators was investigated. Finally, the response stabilization control to maintain stable high energy response of nonlinear broadband vibration energy harvesters was theoretically investigated, and its self-powered operation was achieved.

Academic Significance and Societal Importance of the Research Achievements

さまざまなモノに取り付けた無線センサを介して得られる大量の情報をインターネットを通して活用するIoTネットワークでは,大量のセンサへの電源供給手段とその保守コストが重要な問題になる.特に少子高齢化が進み労働人口が減少していく我が国では,これらの知的情報インフラの維持管理にコストを掛けることができない.その解決策の一つとして,センサ周辺の環境振動の力学的エネルギーを利用する振動発電技術がある.本研究における成果は,振動発電の社会実装を妨げている幾つかの課題の解決をもたらすものであり,持続可能でレジリエントな社会・産業における知的情報ネットワーク基盤の確立に資する.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (4 results)

All 2023 2022

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] An Ideal Softening Resonator for Nonlinear Vibration Energy Harvesting with Flat Power Characteristics2023

    • Author(s)
      Yu Yoshida, Motoaki Hiraga, Nanako Miura and Arata Masuda
    • Journal Title

      Proceedings of the 2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2023)

      Volume: 1 Pages: 106-109

    • DOI

      10.1109/powermems59329.2023.10417557

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Analysis and design of power and bandwidth of nonlinear vibration energy harvesters with hardening restoring forces2023

    • Author(s)
      Masuda Arata
    • Journal Title

      Journal of Sound and Vibration

      Volume: 553 Pages: 117575-117575

    • DOI

      10.1016/j.jsv.2023.117575

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Reduction of eddy current loss of diamagnetically-levitated resonators by dice-and-fill processing2022

    • Author(s)
      Sota Kimura
    • Organizer
      2022 JSME-IIP/ASME-ISPS Joint Conference on Micromechatronics for Information and Precision Equipment (MIPE2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 非線形広帯域振動エネルギーハーベスタのセルフパワード応答安定化条件2022

    • Author(s)
      増田 新
    • Organizer
      日本機械学会 IIP2022 情報・知能・精密機器部門講演会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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