Numerical Simulation Analysis of Dynamic Performance of Magnetically Coupled Monostable Piezoelectric Energy Harvester Device

Abstract:

To meet the energy needs of devices such as wireless sensor networks and MEMS systems，improve the adaptability of piezoelectric energy harvester, this paper studies a two-degree-of-freedom(2-DOF) monostable piezoelectric energy harvester based on magnetic. The electromechanical coupling dynamics equation of the 2-DOF monostable system is established. The dynamic equation is solved by harmonic balance method. The output of dimensionless amplitude-frequency curves of a 2-DOF monostable piezoelectric system in the first and second order resonances is simulation analyzed. The results show that the output amplitude-frequency curve of the 2-DOF monostable system shows linearity of single peak value in the first-order resonance interval and hard spring characteristics in the second-order resonance interval. The research results provide reference for improving the energy harvesting efficiency and expanding the application in the radio field of piezoelectric energy harvester device.

• Periodical: Advances in Science and Technology (Volume 166)
• Pages: 107-113
• DOI: https://doi.org/10.4028/p-j2bSvO
• Online since: June 2025
• Authors: Jun Xiang Jiang, Lei Ke*
• Keywords: Monostable, Piezoelectric Energy Harvester, Simulation

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