BROADBAND ROTATIONAL ENERGY HARVESTING USING BISTABLE MECHANISM AND FREQUENCY UP-CONVERSION
File(s)
Accepted version
Author(s)
Fu, Hailing
Yeatman, Eric M
Type
Conference Paper
Abstract
This paper presents the electromechanical dynamics of a broadband rotational piezoelectric energy harvester using bi-stability and frequency up-conversion. Bi-stability is achieved by the repulsive force between the tip magnet on a piezoelectric cantilever and a fixed magnet above the tip magnet. Frequency up-conversion is realized by the plucking force generated between the tip magnet and a rotating driving magnet below the tip magnet. A numerical model based on the distributed-parameter model was built in Matlab/Simulink. The power extraction capability of different modes of oscillation was analyzed theoretically. The keys to maintain harvester operation in high energy orbit (inter-well vibration) were investigated. The rotational piezoelectric energy harvester was implemented experimentally, showing a significant improvement in output power over a wide bandwidth compared to a harvester without bi-stability.
Date Issued
2017-02-28
Date Acceptance
2016-09-01
Citation
30TH IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS 2017), 2017, pp.853-856
ISSN
1084-6999
Publisher
IEEE
Start Page
853
End Page
856
Journal / Book Title
30TH IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS 2017)
Copyright Statement
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000402552000219&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Source
30th IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering, Mechanical
Nanoscience & Nanotechnology
Engineering
Science & Technology - Other Topics
PROOF MASS
RESONATOR
Publication Status
Published
Start Date
2017-01-22
Finish Date
2017-01-26
Coverage Spatial
Las Vegas, NV
Date Publish Online
2017-02-28