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Bio-inspired quad-stable piezoelectric energy harvester for low-frequency vibration scavenging

Author

Listed:
  • Wang, Tian
  • Zhang, Qichang
  • Han, Jianxin
  • Wang, Wei
  • Yan, Yucheng
  • Cao, Xinyu
  • Hao, Shuying

Abstract

Due to the unique and diverse nonlinear characteristics, bionic structures can effectively broaden the acquisition bandwidth and improve the performance of harvesters. Inspired by dipteran flight motion, a novel bionic quad-stable piezoelectric energy harvester (BQPEH) is designed to collect low-frequency ambient vibration. The novelty of this bionic energy harvester lies in the combination of the “click” mechanism and “snap-through” motion, thus broadening the application scenarios and improving adaptability for the harvesters. A mass block and a post-buckled piezoelectric beam are connected by a rigid bar to create quadruple-well potentials. The static bifurcation analysis is performed to identify the quad-stable region in the parameter space. The dynamic responses of the system are investigated theoretically and numerically under constant and swept-frequency excitations and then verified experimentally. Broadband low-frequency and high-power energy harvesting are obtained through the inter-well motion induced by the combined nonlinearity of the BQPEH. The results indicate the potential of the bionic strategy for powering wireless devices in low-frequency environments and provide a novel concept for the innovative development of energy harvesters.

Suggested Citation

  • Wang, Tian & Zhang, Qichang & Han, Jianxin & Wang, Wei & Yan, Yucheng & Cao, Xinyu & Hao, Shuying, 2023. "Bio-inspired quad-stable piezoelectric energy harvester for low-frequency vibration scavenging," Energy, Elsevier, vol. 282(C).
    • Handle: RePEc:eee:energy:v:282:y:2023:i:c:s0360544223023460
    DOI: 10.1016/j.energy.2023.128952
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    References listed on IDEAS

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    1. Yang, Xin & Lai, Siu-Kai & Wang, Chen & Wang, Jia-Mei & Ding, Hu, 2022. "On a spring-assisted multi-stable hybrid-integrated vibration energy harvester for ultra-low-frequency excitations," Energy, Elsevier, vol. 252(C).
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