A Miniature Coupled Bistable Vibration Energy Harvester

Dibin Zhu, D. C. Arthur, S. P. Beeby

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3 Citations (Scopus)
12 Downloads (Pure)

Abstract

This paper reports the design and test of a miniature coupled bistable vibration energy harvester. Operation of a bistable structure largely depends on vibration amplitude rather than frequency, which makes it very promising for wideband vibration energy harvesting applications. A coupled bistable structure consists of a pair of mobile magnets that create two potential wells and thus the bistable phenomenon. It requires lower excitation to trigger bistable operation compared to conventional bistable structures. Based on previous research, this work focused on miniaturisation of the coupled bistable structure for energy harvesting application. The proposed bistable energy harvester is a combination of a Duffing's nonlinear structure and a linear assisting resonator. Experimental results show that the output spectrum of the miniature coupled bistable vibration energy harvester was the superposition of several spectra. It had a higher maximum output power and a much greater bandwidth compared to simply the Duffing's structure without the assisting resonator.
Original languageEnglish
JournalJournal of Physics: Conference Series
Volume557
Issue number1
DOIs
Publication statusPublished - 2014

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vibration
resonators
energy
output
miniaturization
magnets
actuators
broadband
bandwidth
excitation

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A Miniature Coupled Bistable Vibration Energy Harvester. / Zhu, Dibin; Arthur, D. C.; Beeby, S. P.

In: Journal of Physics: Conference Series, Vol. 557, No. 1, 2014.

Research output: Contribution to journalArticle

Zhu, Dibin ; Arthur, D. C. ; Beeby, S. P. / A Miniature Coupled Bistable Vibration Energy Harvester. In: Journal of Physics: Conference Series. 2014 ; Vol. 557, No. 1.
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