Analysis and Design of Small-Impact Magnetoelectric Generator

For projectile impact penetration experiment, batteries or capacitors are usually used as power sources for projectile-borne recording devices. However, these power sources are easy to fail under high impact. In this paper, a small-impact magnetoelectric generator is introduced, which converts impac...

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Bibliographic Details
Published in:Machines (Basel) 2023-12, Vol.11 (12), p.1040
Main Authors: Niu, Shaohua, Li, Bing, Li, Bingyang, Wang, Pengfei, Song, Yuxi
Format: Article
Language:English
Subjects:
coil position
Design
Efficiency
Electricity
Energy
Environmental impact
Hammers
Impact analysis
Impact loads
Magnetic fields
Magnetoelectric generators
permanent magnet
power generation efficiency
Power management
Power sources
Power supply
Projectiles
Simulation
spring stiffness
Terminal ballistics
Velocity
Vibration
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Summary:For projectile impact penetration experiment, batteries or capacitors are usually used as power sources for projectile-borne recording devices. However, these power sources are easy to fail under high impact. In this paper, a small-impact magnetoelectric generator is introduced, which converts impact force into electrical energy to supply power for devices. The influence of generator structure on force–electricity conversion efficiency is analyzed. Based on the analysis, a small-impact magnetoelectric generator with double springs and two-part coils is designed. A hammer test is carried out on the generator. The test results show that this generator structure would achieve higher force–electricity conversion efficiency under small space.
ISSN:2075-1702
2075-1702
DOI:10.3390/machines11121040