Title :
Finite Element Analysis of Galfenol Unimorph Vibration Energy Harvester
Author :
Rezaeealam, Behrooz ; Ueno, Toshiyuki ; Yamada, Sotoshi
Author_Institution :
Div. of Biol. Meas. & Applic., Kanazawa Univ., Kanazawa, Japan
Abstract :
This paper develops a numerical model to examine the performance of the vibration energy harvester with one-rod (unimorph) of Iron-Gallium (Galfenol). The device´s principle of operation is based on inverse magnetostrictive effect of the Galfenol rod. In order to take into consideration the anisotropy of the Galfenol, the Armstrong model is employed that is implemented into a static 3-D finite element model (FEM) of the energy harvester. The predicted results from the numerical model are compared to the measured ones.
Keywords :
energy harvesting; finite element analysis; gallium; iron; magnetic anisotropy; magnetostrictive devices; Armstrong model; FEM; Fe-Ga; Galfenol anisotropy; Galfenol unimorph vibration energy harvester; finite element analysis; inverse magnetostrictive effect; static 3D finite element model; Magnetic hysteresis; Magnetic resonance; Magnetostriction; Perpendicular magnetic anisotropy; Stress; Armstrong model; energy harvester; inverse magnetostrictive effect;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2202273
