Behavior Analysis of Galfenol Beam Vibration Energy Harvester

This paper describes a static finite element model of magnetostrictive materials, considering magnetic and elastic boundary value problems that are bidirectionally coupled through stress and field dependent variables. The finite element method is applied to a small vibration-driven generator of magnetostrictive type employing Iron-Gallium alloy (Galfenol) for the purpose of the behaviour analysis of the Galfenol beams under bending conditions by illustrating the spatial variations in stress and magnetic field and finally the numerical results are compared with the experimental ones.the 23rd Symposium on Electromagnetics and Dynamic