Magnetic Force-Assisted Nonlinear Three-Dimensional Wideband Energy Harvester Using Magnetostrictive/Piezoelectric Composite Transducers

This paper presents a nonlinear magnetoelectric energy harvester which has the potential to harvest vibrational energy over a wide bandwidth in arbitrary motion directions. Three springs with equal intersection angles are adopted to absorb the multi-directional vibration energy. Magnetic interaction...

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Published inMicromachines (Basel) Vol. 13; no. 10; p. 1633
Main Authors Lin, Zhiming, Li, Hongyun, Lv, Shaobo, Zhang, Binbin, Wu, Zhiyi, Yang, Jin
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 29.09.2022
MDPI
Subjects
bandwidth
Bandwidths
Behavior
Bias
Design
Energy
energy harvester
Energy harvesting
Frequency ranges
Frequency response
Magnetic fields
Magnetism
magnetoelectric
Magnetostriction
Magnets
multi-directional
Open circuit voltage
Piezoelectricity
Simulation
Springs (elastic)
Transducers
Vibration
China
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Summary:This paper presents a nonlinear magnetoelectric energy harvester which has the potential to harvest vibrational energy over a wide bandwidth in arbitrary motion directions. Three springs with equal intersection angles are adopted to absorb the multi-directional vibration energy. Magnetic interaction between the magnets and ME transducers allows the nonlinear motion with enhanced harvesting frequency range. Very good agreement is observed between the numerical and experimental open-circuit voltage output frequency response curves. The experimental results show that the harvester can harvest vibrational energy in an arbitrary direction, exhibiting a further bandwidth of 5.2 Hz. This study provides a new solution to effectively use the magnetoelectric energy harvester for multi-directional and bandwidth vibrational energy scavenging in the surrounding environment.
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ISSN:2072-666X
2072-666X
DOI:10.3390/mi13101633