Maximizing Output Power in a Cantilevered Piezoelectric Vibration Energy Harvester by Electrode Design

Hdl Handle:
http://hdl.handle.net/10034/620188
Title:
Maximizing Output Power in a Cantilevered Piezoelectric Vibration Energy Harvester by Electrode Design
Authors:
Du, Sijun; Jia, Yu; Seshia, Ashwin A.
Abstract:
A resonant vibration energy harvester typically comprises of a clamped anchor and a vibrating shuttle with a proof mass. Piezoelectric materials are embedded in locations of high strain in order to transduce mechanical deformation into electric charge. Conventional design for piezoelectric vibration energy harvesters (PVEH) usually utilizes piezoelectric material and metal electrode layers covering the entire surface area of the cantilever with no consideration provided to examining the trade-off involved with respect to maximizing output power. This paper reports on the theory and experimental verification underpinning optimization of the active electrode area of a cantilevered PVEH in order to maximize output power. The analytical formulation utilizes Euler-Bernoulli beam theory to model the mechanical response of the cantilever. The expression for output power is reduced to a fifth order polynomial expression as a function of the electrode area. The maximum output power corresponds to the case when 44% area of the cantilever is covered by electrode metal. Experimental results are also provided to verify the theory.
Affiliation:
University of Cambridge; University of Chester
Citation:
Du, S., Jia, Y., & Seshia, A. A. (2015). Maximizing Output Power in a Cantilevered Piezoelectric Vibration Energy Harvester by Electrode Design. Journal of Physics: Conference Series, 660(1), 012114. DOI: 10.1088/1742-6596/660/1/012114
Publisher:
IOP Publishing
Journal:
Journal of Physics: Conference Series
Publication Date:
1-Dec-2015
URI:
http://hdl.handle.net/10034/620188
DOI:
10.1088/1742-6596/660/1/012114
Additional Links:
http://iopscience.iop.org/article/10.1088/1742-6596/660/1/012114/meta
Type:
Article
Language:
en
EISSN:
1742-6596
Appears in Collections:
Mechanical Engineering

Full metadata record

DC FieldValue Language
dc.contributor.authorDu, Sijunen
dc.contributor.authorJia, Yuen
dc.contributor.authorSeshia, Ashwin A.en
dc.date.accessioned2016-10-03T08:31:33Z-
dc.date.available2016-10-03T08:31:33Z-
dc.date.issued2015-12-01-
dc.identifier.citationDu, S., Jia, Y., & Seshia, A. A. (2015). Maximizing Output Power in a Cantilevered Piezoelectric Vibration Energy Harvester by Electrode Design. Journal of Physics: Conference Series, 660(1), 012114. DOI: 10.1088/1742-6596/660/1/012114en
dc.identifier.doi10.1088/1742-6596/660/1/012114-
dc.identifier.urihttp://hdl.handle.net/10034/620188-
dc.description.abstractA resonant vibration energy harvester typically comprises of a clamped anchor and a vibrating shuttle with a proof mass. Piezoelectric materials are embedded in locations of high strain in order to transduce mechanical deformation into electric charge. Conventional design for piezoelectric vibration energy harvesters (PVEH) usually utilizes piezoelectric material and metal electrode layers covering the entire surface area of the cantilever with no consideration provided to examining the trade-off involved with respect to maximizing output power. This paper reports on the theory and experimental verification underpinning optimization of the active electrode area of a cantilevered PVEH in order to maximize output power. The analytical formulation utilizes Euler-Bernoulli beam theory to model the mechanical response of the cantilever. The expression for output power is reduced to a fifth order polynomial expression as a function of the electrode area. The maximum output power corresponds to the case when 44% area of the cantilever is covered by electrode metal. Experimental results are also provided to verify the theory.en
dc.language.isoenen
dc.publisherIOP Publishingen
dc.relation.urlhttp://iopscience.iop.org/article/10.1088/1742-6596/660/1/012114/metaen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectEnergy harvestingen
dc.titleMaximizing Output Power in a Cantilevered Piezoelectric Vibration Energy Harvester by Electrode Designen
dc.typeArticleen
dc.identifier.eissn1742-6596-
dc.contributor.departmentUniversity of Cambridge; University of Chesteren
dc.identifier.journalJournal of Physics: Conference Seriesen
dc.date.accepted2015-12-01-
or.grant.openaccessYesen
rioxxterms.funderUnfundeden
rioxxterms.identifier.projectUnfundeden
rioxxterms.versionAMen
rioxxterms.licenseref.startdate2015-12-01-
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