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Micromachines
Volume 13
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10.3390/mi13091399
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Article

Investigation of Nonlinear Piezoelectric Energy Harvester for Low-Frequency and Wideband Applications

by
Osor Pertin
1,
Koushik Guha
1,
Olga Jakšić
2,
Zoran Jakšić
2,* and
Jacopo Iannacci
3
1
National MEMS Design Centre, Department of Electronics and Communication Engineering, National Institute of Technology, Silchar, Assam 788010, India
2
Center of Microelectronic Technologies, Institute of Chemistry, Technology, and Metallurgy–National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
3
Center for Sensors and Devices (SD), Fondazione Bruno Kessler (FBK), Via Sommarive, 18, I-38123 Trento, Italy
*
Author to whom correspondence should be addressed.
Micromachines 2022, 13(9), 1399; https://doi.org/10.3390/mi13091399
Submission received: 2 August 2022 / Revised: 23 August 2022 / Accepted: 23 August 2022 / Published: 26 August 2022
(This article belongs to the Special Issue Piezoelectric Energy Harvesting: Analysis, Design and Fabrication, 2nd Edition)
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Abstract

This paper proposes a monostable nonlinear Piezoelectric Energy Harvester (PEH). The harvester is based on an unconventional exsect-tapered fixed-guided spring design, which introduces nonlinearity into the system due to the bending and stretching of the spring. The physical–mathematical model and finite element simulations were performed to analyze the effects of the stretching-induced nonlinearity on the performance of the energy harvester. The proposed exsect-tapered nonlinear PEH shows a bandwidth and power enhancement of 15.38 and 44.4%, respectively, compared to conventional rectangular nonlinear PEHs. It shows a bandwidth and power enhancement of 11.11 and 26.83%, respectively, compared to a simple, linearly tapered and nonlinear PEH. The exsect-tapered nonlinear PEH improves the power output and operational bandwidth for harvesting low-frequency ambient vibrations.
Keywords: nonlinear piezoelectric energy harvester; monostable; wideband; vibration energy harvester nonlinear piezoelectric energy harvester; monostable; wideband; vibration energy harvester
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MDPI and ACS Style

Pertin, O.; Guha, K.; Jakšić, O.; Jakšić, Z.; Iannacci, J. Investigation of Nonlinear Piezoelectric Energy Harvester for Low-Frequency and Wideband Applications. Micromachines 2022, 13, 1399. https://doi.org/10.3390/mi13091399

AMA Style

Pertin O, Guha K, Jakšić O, Jakšić Z, Iannacci J. Investigation of Nonlinear Piezoelectric Energy Harvester for Low-Frequency and Wideband Applications. Micromachines. 2022; 13(9):1399. https://doi.org/10.3390/mi13091399

Chicago/Turabian Style

Pertin, Osor, Koushik Guha, Olga Jakšić, Zoran Jakšić, and Jacopo Iannacci. 2022. "Investigation of Nonlinear Piezoelectric Energy Harvester for Low-Frequency and Wideband Applications" Micromachines 13, no. 9: 1399. https://doi.org/10.3390/mi13091399

APA Style

Pertin, O., Guha, K., Jakšić, O., Jakšić, Z., & Iannacci, J. (2022). Investigation of Nonlinear Piezoelectric Energy Harvester for Low-Frequency and Wideband Applications. Micromachines, 13(9), 1399. https://doi.org/10.3390/mi13091399

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