Modeling and design of magnetostrictive vibration-powered generator using finite element method

ABSTRACT This work investigates the design of a vibration‐powered generator with one rod (unimorph) of iron–gallium (galfenol) and compares it with its two‐rod (bimorph) counterpart. Galfenol is a promising magnetostrictive material that combines high magnetic susceptibility and desirable mechanical...

Full description

Saved in:
Bibliographic Details
Published in:International journal of numerical modelling 2013-05, Vol.26 (3), p.251-262
Main Authors: Rezaeealam, Behrooz, Ueno, Toshiyuki, Yamada, Sotoshi
Format: Article
Language:English
Subjects:
Armstrong model
Devices
Electronics
FEM
Finite element method
Galfenol
Generators
Magnetostriction
Mathematical analysis
Mathematical models
vibration energy harvester
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:ABSTRACT This work investigates the design of a vibration‐powered generator with one rod (unimorph) of iron–gallium (galfenol) and compares it with its two‐rod (bimorph) counterpart. Galfenol is a promising magnetostrictive material that combines high magnetic susceptibility and desirable mechanical properties and therefore very suitable for harvesting the vibration energy that involves bending stresses. In this study, an energy‐based magnetoelastic model, so‐called Armstrong model, is employed to predict the behavior of galfenol under multiaxial stresses. The Armstrong model of galfenol is implemented into a static 3D finite element model of the energy harvester by which the performances of the devices are predicted and experimentally observed. Copyright © 2012 John Wiley & Sons, Ltd.
ISSN:0894-3370
1099-1204
DOI:10.1002/jnm.1866