Title :
Design and construction of high efficiency magnetostrictive energy harvester for huge and short-time impact vibration systems
Author_Institution :
Zhejiang Univ., Hangzhou, China
Abstract :
This paper presents the design and construction of a vibration energy harvester based on magnetostrictive material which consists of one coil-wound Terfenol-D rod with a PM and air-gap in each magnetic circuit. Relation of magnetic field in Terfenol-D rod with different principal design parameters is derived, its uniformity and intensity are analyzed, and the magnetic circuit configuration is optimized. The magnetostrictive-based vibration energy harvester can generate V/W magnitude induced voltage and power generation larger than conventional smart harvester. The system can be safely used in transient impact up to 20-30 MPa.
Keywords :
dysprosium alloys; energy harvesting; impact (mechanical); iron alloys; magnetic circuits; magnetostrictive devices; rods (structures); terbium alloys; vibrations; TbxDy1-xFe2; Terfenol-D rod; air-gap; impact vibration; magnetic circuit; magnetostrictive-based vibration energy harvester; magnitude-induced voltage; power generation; smart harvester; Air gaps; Magnetic circuits; Magnetic fields; Magnetostriction; Metals; Vibrations;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156823
