Analysis of a micro piezoelectric vibration energy harvester by nonlocal elasticity theory Article Swipe

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Hao Chen , Shan Jiang , Longxiang Dai , Hongping Hu ·

YOU? · · 2016 · Open Access · · DOI: https://doi.org/10.1177/1687814016643453

A theoretical model of a micro piezoelectric energy harvester is proposed based on the nonlocal elasticity theory, which is operated in the flexural mode for scavenging ambient vibration energy. A nonlocal scale is defined as the product of internal characteristic length and a constant related to the material. The dependences of performance of the harvester upon the nonlocal scale and the scale ratio of the nonlocal scale to the external characteristic parameter are investigated in detail. Numerical results show that output power of the harvester decreases, and resonance frequency reduces gradually at first then increases rapidly when nonlocal scale increases. The results of nonlocal elasticity theory are compared with that of classic beam theory. All the results are helpful for material and structure design of the micro piezoelectric energy harvester.

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Piezoelectricity Elasticity (physics) Vibration Energy harvesting Timoshenko beam theory Mechanics Physics Length scale Materials science Acoustics Power (physics) Composite material Quantum mechanics

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Type: article
Language: en
Landing Page: https://doi.org/10.1177/1687814016643453
PDF: https://journals.sagepub.com/doi/pdf/10.1177/1687814016643453
OA Status: gold
Cited By: 7
References: 22
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DOI: https://doi.org/10.1177/1687814016643453

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Title: Analysis of a micro piezoelectric vibration energy harvester by nonlocal elasticity theory

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Language: en

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Publication year: 2016

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Publication date: 2016-04-01

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Authors: Hao Chen, Shan Jiang, Longxiang Dai, Hongping Hu

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Landing page: https://doi.org/10.1177/1687814016643453

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Concepts: Piezoelectricity, Elasticity (physics), Vibration, Energy harvesting, Timoshenko beam theory, Mechanics, Physics, Length scale, Materials science, Acoustics, Power (physics), Composite material, Quantum mechanics

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Cited by: 7

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