Modelling of a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical interface circuits

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dc.contributor.author Hu, Guobiao en
dc.contributor.author Tang, Lihua en
dc.contributor.author Liang, J en
dc.contributor.author Das, R en
dc.date.accessioned 2019-10-08T09:03:42Z en
dc.date.issued 2019-08 en
dc.identifier.issn 1530-8138 en
dc.identifier.uri http://hdl.handle.net/2292/48485 en
dc.description.abstract This article presents a modelling methodology for a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical power conditioning interface circuits. First, the distributed parameter model of the partially covered piezoelectric energy harvester is developed and the associated analytical solution is derived. Subsequently, the single-degree-of-freedom representation model is developed and the explicit expressions of equivalent lumped parameters are derived by taking the static deflection as the approximated fundamental vibration mode. Based on the comparison with the single-mode expression of the distributed parameter model, a correction factor is proposed to improve the accuracy of the single-degree-of-freedom model. The results of both the distributed parameter and the corrected single-degree-of-freedom models are compared. The accuracy of the corrected single-degree-of-freedom representation model is verified against the analytical and the finite element models. Finally, practical interface circuits including the standard energy harvesting circuit and the parallel synchronized switch harvesting on inductor circuit are considered. A modified equivalent impedance modelling method is proposed for the analysis of the standard energy harvesting and parallel synchronized switch harvesting on inductor circuits. The results of the modified equivalent impedance modelling method are verified against the existing method in the literature. en
dc.publisher SAGE Publications en
dc.relation.ispartofseries Journal of Intelligent Material Systems and Structures en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Modelling of a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical interface circuits en
dc.type Journal Article en
dc.identifier.doi 10.1177/1045389X19849269 en
pubs.issue 13 en
pubs.begin-page 1896 en
pubs.volume 30 en
dc.rights.holder Copyright: The author en
pubs.end-page 1912 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 772679 en
pubs.org-id Engineering en
pubs.org-id Mechanical Engineering en
pubs.record-created-at-source-date 2019-05-20 en
pubs.online-publication-date 2019-05-19 en


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