Development of a broadband nonlinear two-degree-of-freedom piezoelectric energy harvester

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dc.contributor.author Wu, H en
dc.contributor.author Tang, Lihua en
dc.contributor.author Yang, Y en
dc.contributor.author Soh, CK en
dc.date.accessioned 2018-10-16T22:04:20Z en
dc.date.issued 2014-07-22 en
dc.identifier.issn 1045-389X en
dc.identifier.uri http://hdl.handle.net/2292/42107 en
dc.description.abstract Vibration energy harvesting using piezoelectric material has received great research interest in the recent years. One important concern for the development of piezoelectric energy harvesting is to broaden the operating bandwidth. Various techniques have been proposed for broadband energy harvesting, such as the resonance tuning approach, the frequency up-conversion technique, the multi-modal harvesting, and the nonlinear technique. A recently reported linear 2-degree-of-freedom harvester can achieve two close resonant frequencies both with significant power outputs, using its unique cantilever configuration. This article proposes to incorporate magnetic nonlinearity into the linear 2-degree-of-freedom system, aiming at further broadening its operating bandwidth. Experimental parametric study is carried out to investigate the behavior of such nonlinear 2-degree-of-freedom harvester. Among different configurations, an optimal configuration of the nonlinear 2-degree-of-freedom harvester is obtained to achieve significantly wider bandwidth. A lumped parameter model for such nonlinear 2-degree-of-freedom harvester is developed, and the results provide good validation for the experimental findings. 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 Development of a broadband nonlinear two-degree-of-freedom piezoelectric energy harvester en
dc.type Journal Article en
dc.identifier.doi 10.1177/1045389X14541494 en
pubs.issue 14 en
pubs.begin-page 1875 en
pubs.volume 25 en
dc.rights.holder Copyright: The author en
pubs.end-page 1889 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 447443 en
pubs.org-id Engineering en
pubs.org-id Mechanical Engineering en
dc.identifier.eissn 1530-8138 en
pubs.record-created-at-source-date 2014-07-23 en


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