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Design of a novel piezoelectric energy harvester for scavenging energy from human walking
Wen S.; Xu Q.
2018-08-30
Conference Name2018 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)
Source PublicationIEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM
Volume2018-July
Pages792-797
Conference Date9-12 July 2018
Conference PlaceAuckland, New Zealand
Abstract

This paper proposes the design of a novel piezoelectric energy harvester for scavenging mechanical energy excited by human footstep during walking. The device involves a four-stage force amplification using wedge mechanism, leverage mechanism, half-bridge mechanism, and bridge-type force amplifier. It is designed to magnify the input force exerted on a piezoelectric stack so as to enhance the power output. Analytical model of the energy harvester is established via the force analysis based on stiffness matrix method. The main architectural parameters of the device are optimized by adopting multi-objective genetic algorithm (MOGA), which is verified by performing finite element analysis (FEA) simulation study. Moreover, a prototype is fabricated for experimental investigation. Experimental results show that the harvester exhibits a larger force amplification ratio and higher power output than existing works.

DOI10.1109/AIM.2018.8452343
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS IDWOS:000447254200133
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Citation statistics
Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Wen S.,Xu Q.. Design of a novel piezoelectric energy harvester for scavenging energy from human walking[C],2018:792-797.
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