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A Mass-In-Mass Metamaterial Design for Harvesting Energy at a Broadband Frequency Range

Author

Listed:
  • Hossain Ahmed

    (Department of Mechanical Engineering, Georgia Southern University, Statesboro, GA 30458, USA)

  • Riaz Ahmed

    (Department of Mechanical Engineering, Wisconsin University, Green Bay, WI 53706, USA)

Abstract

A novel deterministic method to harvest energy within a broadband frequency (0~25 kHz) from a mass-in-mass metamaterial is presented herein. Traditional metamaterials are composed of multiple materials (named as resonators and matrix) with different mechanical properties (e.g., stiffness, density). In this work, the stiffnesses of matrix materials are altered systematically to allow diversified property mismatches between the constituent components to introduce local resonance in the unit cell. While local resonance leverages wave energy passing through the acoustic metamaterials trapped within the relatively soft matrix as dynamic strain energy, a strategic and deterministic methodology is investigated to obtain a broadband local resonance frequency. The frequency band can then be utilized to harvest the trapped energy by embedding a smart material inside the matrix which is capable of electromechanical transduction (e.g., lead zirconate titanate). This concept has been proved numerically by harvesting energy at a broadband frequency with a power density of ~10 μW/in 2 . Finally, an experimental study is performed to prove the hypothesis proposed in this article.

Suggested Citation

  • Hossain Ahmed & Riaz Ahmed, 2023. "A Mass-In-Mass Metamaterial Design for Harvesting Energy at a Broadband Frequency Range," Energies, MDPI, vol. 16(16), pages 1-13, August.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:16:p:5883-:d:1213325
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    References listed on IDEAS

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    1. Fang, Shitong & Miao, Gang & Chen, Keyu & Xing, Juntong & Zhou, Shengxi & Yang, Zhichun & Liao, Wei-Hsin, 2022. "Broadband energy harvester for low-frequency rotations utilizing centrifugal softening piezoelectric beam array," Energy, Elsevier, vol. 241(C).
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