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Enhanced broadband piezoelectric energy harvesting using rotatable magnets
Abstract
We investigate a magnetically coupled nonlinear piezoelectric energy harvester by altering the angular orientation of its external magnets for enhanced broadband frequency response. Electromechanical equations describing the nonlinear dynamic behavior include an experimentally identified polynomial for the transverse magnetic force that depends on magnet angle. Up- and down-sweep harmonic excitation tests are performed at constant acceleration over the range of 0–25 Hz. Very good agreement is observed between the numerical and experimental open-circuit voltage output frequency response curves. The nonlinear energy harvester proposed in this work can cover the broad low-frequency range of 4–22 Hz by changing the magnet orientation.
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Citations
Cited by
Safaei, M., Sodano, H. A., & Anton, S. R. (2019) · Smart Materials and Structures · doi:10.1088/1361-665x/ab36e4 · Cited by 874
“In 2014, Zhou et al [199] presented a triple-well nonlinear piezoelectric energy harvester consisting of a piezoelectric beam with a tip magnet and two external magnets with a unique arrangement compared to traditional bistable systems (figure 5(e)).”
BackgroundMethodInfluentialA Review of Early Fault Diagnosis Approaches and Their Applications in Rotating Machinery
Wei, Y., Li, Y., Xu, M., & Huang, W. (2019) · Entropy · doi:10.3390/e21040409 · Cited by 232
Scavenging energy from the motion of human lower limbs via a piezoelectric energy harvester
Fan, K., Yu, B., Zhu, Y., Liu, Z., & Wang, L. (2017) · International Journal of Modern Physics B · doi:10.1142/s0217979217410119 · Cited by 31
Metadata
- Authors
- Zhou, S., Cao, J., Erturk, A., & Lin, J.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2013-04-29
- Volume
- 102
- Issue
- 17
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1982845298
- Cited by
- 365
- References
- 0
- FWCI
- 30.55
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhou, S., Cao, J., Erturk, A., & Lin, J. (2013). Enhanced broadband piezoelectric energy harvesting using rotatable magnets. Applied Physics Letters. https://doi.org/10.1063/1.4803445
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