The analysis of a magnetostrictive cantilever for energy harvesting purposes is addressed. The focus of the work is on outlining, by a thorough experimental study, the basic phenomena affecting the behavior of such systems and, in particular, how the geometry of the physical structure can affect the overall performance of the harvester. Several harvester prototypes have been realized by bonding together one or more magnetostrictive laminations to Al sheets. Further, the influence of the magnetic bias is investigated by exploiting permanent magnets in different positions of the cantilever. The results are discussed in detail and a converted power up to 40 mW is observed at 4 g impressed acceleration of the sample.
Magneto-mechanical optimization and analysis of a magnetostrictive cantilever beam for energy harvesting
Clemente, Carmine Stefano;
2019-01-01
Abstract
The analysis of a magnetostrictive cantilever for energy harvesting purposes is addressed. The focus of the work is on outlining, by a thorough experimental study, the basic phenomena affecting the behavior of such systems and, in particular, how the geometry of the physical structure can affect the overall performance of the harvester. Several harvester prototypes have been realized by bonding together one or more magnetostrictive laminations to Al sheets. Further, the influence of the magnetic bias is investigated by exploiting permanent magnets in different positions of the cantilever. The results are discussed in detail and a converted power up to 40 mW is observed at 4 g impressed acceleration of the sample.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
