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Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability / Jatin Patrick, Sondipon Adhikari, Mahmoud I. Hussein

Smart Materials and Structures, Volume: 30, Issue: 8, Start page: 085022

Swansea University Authors: Jatin Patrick, Sondipon Adhikari

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Abstract

Vibration energy harvesting is an emerging technology that enables electric power generation using piezoelectric devices. The prevailing approach for characterization of the energy-harvesting capacity in these devices is to consider a finite structure operating under forced vibration conditions. Her...

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Published in: Smart Materials and Structures
ISSN: 0964-1726 1361-665X
Published: IOP Publishing 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa57502
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last_indexed 2021-09-11T03:20:23Z
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spelling 2021-09-10T16:30:33.6384134 v2 57502 2021-08-03 Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability a1051d4f6baecfe311a569f909620ae6 Jatin Patrick Jatin Patrick true false 4ea84d67c4e414f5ccbd7593a40f04d3 Sondipon Adhikari Sondipon Adhikari true false 2021-08-03 FGSEN Vibration energy harvesting is an emerging technology that enables electric power generation using piezoelectric devices. The prevailing approach for characterization of the energy-harvesting capacity in these devices is to consider a finite structure operating under forced vibration conditions. Here, we present an alternative framework whereby the intrinsic energy-harvesting characteristics are formally quantified independent of the forcing and the structure size. In doing so, we consider the notion of a piezoelectric material rather than a finite piezoelectric structure. As an example, we consider a suspended piezoelectric phononic crystal to which we apply Bloch's theorem and formally quantify the energy-harvesting characteristics within the span of the unit cell's Brillouin zone (BZ). In the absence of shunted piezoelectric circuits, the wavenumber-dependent dissipation of the phononic crystal is calculated and shown to increase, as expected, with the level of prescribed damping. With the inclusion of the piezoelectric elements, the wavenumber-dependent dissipation rises by an amount proportional to the energy available for harvest which upon integration over the BZ and summing over all branches yields a quantity representative of the net available energy for harvesting. We investigate both monoatomic and diatomic phononic crystals and piezoelectric elements with and without an inductor. The paper concludes with a parametric design study yielding optimal piezoelectric element properties in terms of the proposed intrinsic energy-harvesting availability measure. Journal Article Smart Materials and Structures 30 8 085022 IOP Publishing 0964-1726 1361-665X 5 7 2021 2021-07-05 10.1088/1361-665x/ac0c2c COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2021-09-10T16:30:33.6384134 2021-08-03T10:18:44.2651305 College of Engineering Engineering Jatin Patrick 1 Sondipon Adhikari 2 Mahmoud I. Hussein 3 57502__20522__c8f7b5bbc2af46559f22545e2516fad5.pdf 57502.pdf 2021-08-03T10:22:19.0914802 Output 2178667 application/pdf Version of Record true © 2021 The Author(s). Released under the terms of the Creative Commons Attribution 4.0 licence true eng
title Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability
spellingShingle Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability
Jatin, Patrick
Sondipon, Adhikari
title_short Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability
title_full Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability
title_fullStr Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability
title_full_unstemmed Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability
title_sort Brillouin-zone characterization of piezoelectric material intrinsic energy-harvesting availability
author_id_str_mv a1051d4f6baecfe311a569f909620ae6
4ea84d67c4e414f5ccbd7593a40f04d3
author_id_fullname_str_mv a1051d4f6baecfe311a569f909620ae6_***_Jatin, Patrick
4ea84d67c4e414f5ccbd7593a40f04d3_***_Sondipon, Adhikari
author Jatin, Patrick
Sondipon, Adhikari
author2 Jatin Patrick
Sondipon Adhikari
Mahmoud I. Hussein
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description Vibration energy harvesting is an emerging technology that enables electric power generation using piezoelectric devices. The prevailing approach for characterization of the energy-harvesting capacity in these devices is to consider a finite structure operating under forced vibration conditions. Here, we present an alternative framework whereby the intrinsic energy-harvesting characteristics are formally quantified independent of the forcing and the structure size. In doing so, we consider the notion of a piezoelectric material rather than a finite piezoelectric structure. As an example, we consider a suspended piezoelectric phononic crystal to which we apply Bloch's theorem and formally quantify the energy-harvesting characteristics within the span of the unit cell's Brillouin zone (BZ). In the absence of shunted piezoelectric circuits, the wavenumber-dependent dissipation of the phononic crystal is calculated and shown to increase, as expected, with the level of prescribed damping. With the inclusion of the piezoelectric elements, the wavenumber-dependent dissipation rises by an amount proportional to the energy available for harvest which upon integration over the BZ and summing over all branches yields a quantity representative of the net available energy for harvesting. We investigate both monoatomic and diatomic phononic crystals and piezoelectric elements with and without an inductor. The paper concludes with a parametric design study yielding optimal piezoelectric element properties in terms of the proposed intrinsic energy-harvesting availability measure.
published_date 2021-07-05T04:22:42Z
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