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Nonlinear Hybrid Piezoelectric and Electromagnetic Energy Harvesting Driven by Colored Excitation

Author

Listed:
  • Xiaoya Zhou

    (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Shiqiao Gao

    (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Haipeng Liu

    (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Lei Jin

    (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

Abstract

It is well known that when excited by a stochastic base acceleration, the power absorbed by a nonlinear Duffing-type piezoelectric (PE) or electromagnetic (EM) energy harvester might not be increased effectively compared to a linear one. When intentionally introducing nonlinear magnetic forces into a doubly-clamped hybrid PE and EM energy harvester subjected to narrow-band (colored) excitation however, the power output could be improved to a much higher value. Also, in comparison with the typical nonlinear PE or EM generator, the influence of load and excitation parameters on the performance of a nonlinear hybrid energy harvester under colored excitation has been proven rather different as well. These results are derived analytically by solving the Fokker-Planck (FP) equation, and numerically by Monte Carlo (MC) simulations for validation. Besides, for a nonlinear hybrid configuration excited by colored noise approaching white Gaussian excitation, theoretical output characteristics are discussed and compared with results from a reported theory for white Gaussian excited case, which again verifies the feasibility of the theoretical analysis.

Suggested Citation

  • Xiaoya Zhou & Shiqiao Gao & Haipeng Liu & Lei Jin, 2018. "Nonlinear Hybrid Piezoelectric and Electromagnetic Energy Harvesting Driven by Colored Excitation," Energies, MDPI, vol. 11(3), pages 1-23, February.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:3:p:498-:d:133543
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    Cited by:

    1. Ming He & Sheng Wang & Xiang Zhong & Mingjie Guan, 2019. "Study of a Piezoelectric Energy Harvesting Floor Structure with Force Amplification Mechanism," Energies, MDPI, vol. 12(18), pages 1-10, September.

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