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Design and Development of a Novel Two-Directional Energy Harvester with Single Piezoelectric Stack
Wu,Zehao; Xu,Qingsong
2021-02-01
Source PublicationIEEE Transactions on Industrial Electronics
ISSN0278-0046
Volume68Issue:2Pages:1290-1298
AbstractThis article presents the design, fabrication, and testing of a novel piezoelectric energy harvester. Its unique feature is that a single piezoelectric stack is used for harvesting the energy from two-directional excitation in vertical directions. To accept the input forces in two directions, a flexure-based two-stage force amplifier is integrated with a conical transmission mechanism and a sliding guiding mechanism. An analytical model is established to predict the force amplification ratio of the proposed energy harvester. In order to maximize the output performance of the energy harvester, the dominant parameters of the mechanism are determined, which are optimally designed by resorting to a genetic algorithm. A prototype energy harvester is fabricated for experimental testing. Experimental results indicate that the developed harvester exhibits the advantages of high safety factor, large force amplification ratio, and compact size. It can provide the maximum average output power density of over 286.70 kW$\cdot$m$^{-3}$ from 10-N force excitation in two directions.
KeywordCompliant mechanism energy harvester force amplifier mechanical design piezoelectric stack
DOI10.1109/TIE.2020.2970655
URLView the original
Language英语
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Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorXu,Qingsong
AffiliationDepartment of Electromechanical Engineering,Faculty of Science and Technology,University of Macau,Macao
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
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GB/T 7714
Wu,Zehao,Xu,Qingsong. Design and Development of a Novel Two-Directional Energy Harvester with Single Piezoelectric Stack[J]. IEEE Transactions on Industrial Electronics,2021,68(2):1290-1298.
APA Wu,Zehao,&Xu,Qingsong.(2021).Design and Development of a Novel Two-Directional Energy Harvester with Single Piezoelectric Stack.IEEE Transactions on Industrial Electronics,68(2),1290-1298.
MLA Wu,Zehao,et al."Design and Development of a Novel Two-Directional Energy Harvester with Single Piezoelectric Stack".IEEE Transactions on Industrial Electronics 68.2(2021):1290-1298.
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