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Design and testing of a novel bidirectional energy harvester with single piezoelectric stack
Zehao Wu; Qingsong Xu
2019-05-01
Source PublicationMechanical Systems and Signal Processing
ISSN0888-3270
Volume122Pages:139-151
Abstract

This paper presents the design, fabrication and testing of a novel piezoelectric energy harvester with a single piezo-stack for harvesting energy from excitations with bidirectional motion. A rhombus-type force amplifier is combined with a selectivity lever to utilize both pull and push inputs. Analytical model is established to predict the force amplification ratio of the proposed energy harvester under different directions of input force. In order to maximize the output performance of the energy harvester, the mechanism parameters are optimally designed. A prototype energy harvester is fabricated for experimental testing. Results indicate that the developed harvester has the merits of high safety factor and compact size, which can be adopted to harvest the mechanical energy for excitations with both pull and push inputs in bidirectional directions.

KeywordEnergy Harvesting Force Amplifier Piezo-stack Piezoelectric Push And Pull
DOI10.1016/j.ymssp.2018.12.026
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Mechanical
WOS IDWOS:000457948600041
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Citation statistics
Cited Times [WOS]:13   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
AffiliationDepartment of Electromechanical Engineering, Faculty of Science and Technology, University of Macau, Avenida da Universidade, Taipa, Macau, China
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Zehao Wu,Qingsong Xu. Design and testing of a novel bidirectional energy harvester with single piezoelectric stack[J]. Mechanical Systems and Signal Processing,2019,122:139-151.
APA Zehao Wu,&Qingsong Xu.(2019).Design and testing of a novel bidirectional energy harvester with single piezoelectric stack.Mechanical Systems and Signal Processing,122,139-151.
MLA Zehao Wu,et al."Design and testing of a novel bidirectional energy harvester with single piezoelectric stack".Mechanical Systems and Signal Processing 122(2019):139-151.
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