Imperial College London
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ProfessorEricYeatman

Faculty of Engineering, Department of Electrical and Electronic Engineering

Head of Department of Electrical and Electronic Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6204e.yeatman CV

 
 
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Assistant

 

Ms Anna McCormick +44 (0)20 7594 6189

 
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Location

 

610aElectrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Fu:2017:10.1016/j.energy.2017.02.115,
author = {Fu, H and Yeatman, EM},
doi = {10.1016/j.energy.2017.02.115},
journal = {Energy},
pages = {152--161},
title = {A methodology for low-speed broadband rotational energy harvesting using piezoelectric transduction and frequency up-conversion},
url = {http://dx.doi.org/10.1016/j.energy.2017.02.115},
volume = {125},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Energy harvesting from vibration for low-power electronics has been investigated intensively in recent years, but rotational energy harvesting is less investigated and still has some challenges. In this paper, a methodology for low-speed rotational energy harvesting using piezoelectric transduction and frequency up-conversion is analysed. The system consists of a piezoelectric cantilever beam with a tip magnet and a rotating magnet on a revolving host. The angular kinetic energy of the host is transferred to the vibration energy of the piezoelectric beam via magnetic coupling between the magnets. Frequency up-conversion is achieved by magnetic plucking, converting low frequency rotation into high frequency vibration of the piezoelectric beam. A distributed-parameter theoretical model is presented to analyse the electromechanical behaviour of the rotational energy harvester. Different configurations and design parameters were investigated to improve the output power of the device. Experimental studies were conducted to validate the theoretical estimation. The results illustrate that the proposed method is a feasible solution to collecting low-speed rotational energy from ambient hosts, such as vehicle tires, micro-turbines and wristwatches.
AU  - Fu,H
AU  - Yeatman,EM
DO  - 10.1016/j.energy.2017.02.115
EP  - 161
PY  - 2017///
SN  - 0360-5442
SP  - 152
TI  - A methodology for low-speed broadband rotational energy harvesting using piezoelectric transduction and frequency up-conversion
T2  - Energy
UR  - http://dx.doi.org/10.1016/j.energy.2017.02.115
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000401202300014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S0360544217302979?via%3Dihub
UR  - http://hdl.handle.net/10044/1/57609
VL  - 125
ER  -
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