Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/83620
Title: Nonlinear piezomagnetoelastic harvester array for broadband energy harvesting
Authors: Upadrashta, Deepesh
Yang, Yaowen
Keywords: Magnetic resonance
Magnets
Issue Date: 2016
Source: Upadrashta, D., & Yang, Y. (2016). Nonlinear piezomagnetoelastic harvester array for broadband energy harvesting. Journal of Applied Physics, 120(5), 054504-.
Series/Report no.: Journal of Applied Physics
Abstract: This article proposes an array of nonlinear piezomagnetoelastic energy harvesters (NPEHs) for scavenging electrical energy from broadband vibrations with low amplitudes (<2 m/s2). The array consists of monostable NPEHs combined to generate useful power output (∼100 μW) over wide bandwidth. The nonlinearity in each of the NPEHs is induced by the magnetic interaction between an embedded magnet in the tip mass of cantilever and a fixed magnet clamped to the rigid platform. The dynamic responses of two NPEHs, one with attractive configuration and the other with repulsive configuration, are combined to achieve a bandwidth of 3.3 Hz at a power level of 100 μW. A parametric study is carried out to obtain the gap distances between the magnets to achieve wide bandwidth. Experiments are performed to validate the proposed idea, the theoretical predictions, and to demonstrate the advantage of array of NPEHs over the array of linear piezoelectric energy harvesters (LPEHs). The experiments have clearly shown the advantage of NPEH array over its linear counterpart under both harmonic and random excitations. Approximately, 100% increase in the operation bandwidth is achieved by the NPEH array at harmonic excitation level of 2 m/s2. The NPEH array exhibits up to 80% improvement in the accumulated energy under random excitation when compared with the LPEH array. Furthermore, the performance of NPEH array with series and parallel connections between the individual harvesters using standard AC/DC interface circuits is also investigated and compared with its linear counterpart.
URI: https://hdl.handle.net/10356/83620
http://hdl.handle.net/10220/42697
ISSN: 0021-8979
DOI: 10.1063/1.4960442
Schools: School of Civil and Environmental Engineering 
Rights: © 2016 American Institute of Physics (AIP). This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: [http://dx.doi.org/10.1063/1.4960442]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

Files in This Item:
File Description SizeFormat 
Nonlinear piezomagnetoelastic harvester array for broadband energy harvesting.pdf2.79 MBAdobe PDFThumbnail
View/Open

SCOPUSTM   
Citations 10

49
Updated on May 31, 2024

Web of ScienceTM
Citations 10

44
Updated on Oct 26, 2023

Page view(s) 50

449
Updated on Jun 14, 2024

Download(s) 20

208
Updated on Jun 14, 2024

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.