Dynamic Characteristics of Galfenol Cantilever Energy Harvester

Author

Shuying Cao ; Jiaju Zheng ; Yan Guo ; Quan Li ; Jie Sang ; Bowen Wang ; Rongge Yan

Author_Institution

Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Technol., Tianjin, China

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

Based on the Armstrong model and the established electromechanical model of a Galfenol cantilever energy harvester, a nonlinear dynamic model is proposed to describe the mechanical-magneto-electro coupled characteristics of the device. Comparisons between the experimental and calculated results show that the proposed model can provide a reasonable qualitative indication of data trends, and can predict the effects of the acceleration excitation, the load resistance, and the bias magnetic field on the output performance of the device, thus has very strong practicability.

Keywords

cantilevers; energy harvesting; magnetic fields; Armstrong model; Galfenol cantilever energy harvester; acceleration excitation; bias magnetic field; electromechanical model; load resistance; mechanical-magneto-electro coupled characteristics; nonlinear dynamic model; Load modeling; Magnetic anisotropy; Magnetic hysteresis; Magnetostriction; Saturation magnetization; Stress; Armstrong model; Galfenol; energy harvester; inverse magnetostrictive effect;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2360195

Filename

7093411