Numerical Characterization of Magnetostrictive Response of GalFeNol Samples for Energy Harvesting

G. Canciello [1], A. Cavallo [1], C. D'Avino [2], D. Tornese [2], C. Visone [3]
[1] Dipartimento di Ingegneria Industriale e dell’Informazione, Seconda Università degli Studi di Napoli, Caserta CE, Italy
[2] Teoresi Group S.p.A, Torino, Italy
[3] Dipartimento di Ingegneria, Università del Sannio, Benevento BN, Italy
Published in 2015

GalFeNol is a new Giant Magnetostrictive Material that can be used in energy harvesting especially in vibration reduction applications, thanks to the Joule and Villari effects. A 3D-model of GalFeNol rod is stressed by a time varying longitudinal force of 1000 N. The study has been carried out for two shapes, a solid and hollow cylinder . For both the shapes, physical dimensions (inner and outer radius) are parameterized in order to evaluate the best combination of them. The model also includes a multiple wire coil and a resistive load (100 Ω) to evaluate the electrical power generated by the energy harvesting.