Full Text:   <3482>

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CLC number: TM619; TN384

On-line Access: 2014-06-04

Received: 2014-05-04

Revision Accepted: 2014-07-24

Crosschecked: 2014-08-25

Cited: 10

Clicked: 10022

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.9 P.711-722


A 2DOF hybid energy harvester based on combined piezoelectric and electromagnetic conversion mechanisms*

Author(s):  Hong-yan Wang1,2, Li-hua Tang3, Yuan Guo1, Xiao-biao Shan2, Tao Xie2

Affiliation(s):  1. College of Computer and Control Engineering, Qiqihar University, Qiqihar 161006, China; more

Corresponding email(s):   wanghongyan1993@163.com

Key Words:  Vibration, Two-degree-of-freedom (2DOF), Hybrid piezoelectric-electromagnetic conversion, Energy harvesting

Hong-yan Wang, Li-hua Tang, Yuan Guo, Xiao-biao Shan, Tao Xie. A 2DOF hybrid energy harvester based on combined piezoelectric and electromagnetic conversion mechanisms[J]. Journal of Zhejiang University Science A, 2014, 15(9): 711-722.

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publisher="Zhejiang University Press & Springer",

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%T A 2DOF hybrid energy harvester based on combined piezoelectric and electromagnetic conversion mechanisms
%A Hong-yan Wang
%A Li-hua Tang
%A Yuan Guo
%A Xiao-biao Shan
%A Tao Xie
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 9
%P 711-722
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1400124

T1 - A 2DOF hybrid energy harvester based on combined piezoelectric and electromagnetic conversion mechanisms
A1 - Hong-yan Wang
A1 - Li-hua Tang
A1 - Yuan Guo
A1 - Xiao-biao Shan
A1 - Tao Xie
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 9
SP - 711
EP - 722
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1400124

This paper presents a two-degree-of-freedom (2DOF) hybrid piezoelectric-electromagnetic energy harvester (P-EMEH). Such a 2DOF system is designed to achieve two close resonant frequencies. The combined piezoelectric-electromagnetic conversion mechanism is exploited to further improve the total power output of the system in comparison to a stand-alone piezoelectric or electromagnetic conversion mechanism. First, a mathematical model for the 2DOF hybrid P-EMEH is established. Subsequently, the maximal power output of the 2DOF hybrid P-EMEH is compared both experimentally and theoretically with those from the 1DOF piezoelectric energy harvester (PEH), 1DOF electromagnetic energy harvester (EMEH), 2DOF PEH, and 2DOF EMEH. Based on the validated mathematical model, the effect of the effective electromechanical coupling coefficients (EMCC) on the maximal power outputs from various harvester configurations is analyzed. The results indicate that for the 2DOF hybrid P-EMEH, although the increase of the power output from one electromechanical transducer will lead to the decrease of the power output from the other, the overall performance of the system is improved in weak and medium coupling regimes by increasing electromechanical coupling. In weak and medium coupling scenarios, the hybrid energy harvester configuration is advantageous over conventional 1DOF or 2DOF harvester configurations with a stand-alone conversion mechanism.



Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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