Open AccessA magnetically-sprung nonlinear resonator for wideband vibration energy harvesting consisting of magnetic composite and ring magnets
Author(s) -
Yusuke Miyata,
Arata Masuda,
Zhao Feng,
Sou Ushiki
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1407/1/012072
Subject(s) - magnet , resonator , vibration , wideband , materials science , stiffness , energy harvesting , excitation , split ring resonator , acoustics , composite number , nonlinear system , energy (signal processing) , physics , nuclear magnetic resonance , optoelectronics , electrical engineering , composite material , engineering , optics , quantum mechanics
This paper presents a novel design of a magnetically-sprung mechanical resonator for wideband vibration energy harvesting. In this design, a magnet composite consisting of two cylindrical magnets composed in a repelling arrangement is used as a moving mass, which is magnetically suspended between two ring magnets. This configuration yields more significant variation of stiffness in a shorter stroke compared with the previous design, resulting in wider operation band even under small excitation.