Design optimization of piezoelectric energy harvester subject to tip excitation

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This research proposes a new design for a cantilever-type piezoelectric energy harvester in which a free tip is excited by any rotary motion of mechanical devices. A coupled field finite element model for the harvester is constructed using ANSYS and verification study is performed. Design optimization on the shape of the harvester is done to maximize output power. The design optimization result shows excellent performance when compared to a simple rectangular cantilever or the well-known tapered cantilever. The design results are prototyped and their improved performances are experimentally attested.
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Issue Date
2012-01
Language
English
Article Type
Article
Citation

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.26, no.1, pp.137 - 143

ISSN
1738-494X
DOI
10.1007/s12206-011-0910-1
URI
http://hdl.handle.net/10203/93818
Appears in Collection
ME-Journal Papers(저널논문)
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