A miniature coupled bistable vibration energy harvester
A miniature coupled bistable vibration energy harvester
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
12124
Zhu, D.
ec52eae1-39fa-427c-968b-e76089a464a6
Arthur, Derek
173b683b-fc66-49c0-af85-9b7d4299186c
Beeby, S.P.
ba565001-2812-4300-89f1-fe5a437ecb0d
November 2014
Zhu, D.
ec52eae1-39fa-427c-968b-e76089a464a6
Arthur, Derek
173b683b-fc66-49c0-af85-9b7d4299186c
Beeby, S.P.
ba565001-2812-4300-89f1-fe5a437ecb0d
Zhu, D., Arthur, Derek and Beeby, S.P.
(2014)
A miniature coupled bistable vibration energy harvester.
Journal of Physics: Conference Series, 557, .
(doi:10.1088/1742-6596/557/1/012116).
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
Text
A Miniature Coupled Bistable Vibration Energy Harvester_full.pdf
- Accepted Manuscript
Available under License Other.
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Published date: November 2014
Venue - Dates:
PowerMEMS 2014, Awaji Island, Japan, 2014-11-18 - 2014-11-21
Organisations:
EEE
Identifiers
Local EPrints ID: 372378
URI: http://eprints.soton.ac.uk/id/eprint/372378
ISSN: 1742-6588
PURE UUID: a010f380-0dc7-4958-99b4-aad8eb8ed15a
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Date deposited: 05 Dec 2014 13:43
Last modified: 15 Mar 2024 02:46
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Author:
D. Zhu
Author:
Derek Arthur
Author:
S.P. Beeby
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