Title :
A magnetostrictive electric generator
Author :
Lundgren, A. ; Tiberg, H. ; Kvarnsjo, L. ; Bergqvist, A. ; Engdahl, G.
Author_Institution :
Electr. Power Res. Centre, R. Inst. of Technol., Stockholm, Sweden
fDate :
11/1/1993 12:00:00 AM
Abstract :
An electric generator based on the magnetostrictive effect is presented. Longitudinal oscillations of a Terfenol-D rod give rise to a varying flux which induces a current in a coil wound around the rod. A small prototype of such a device is discussed, and both calculations and experiments are performed. The problem of eddy current losses is addressed
Keywords :
eddy current losses; electric generators; magnetostrictive devices; small electric machines; TbDyFe; Terfenol-D rod; eddy current losses; electromechanical modelling; longitudinal oscillations; magnetostrictive electric generator; small prototype; varying flux; Coils; Eddy currents; Equations; Generators; Magnetic devices; Magnetic field induced strain; Magnetic flux; Magnetostriction; Magnetostrictive devices; Stress;
Journal_Title :
Magnetics, IEEE Transactions on
