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Dynamic Modeling and Characteristic Analysis of Cantilever Piezoelectric Bimorph

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  • Heng Chen
  • Jun-shan Wang
  • Chao Chen
  • Shi-xiang Liu
  • Hai-peng Chen

Abstract

The analytical model of an axially precompressed cantilever bimorph is established using the Hamilton’s principle in this study, and the static characteristics are obtained. The dynamic equations of the cantilever bimorph in generalized coordinates are established using a numerical method, and the dynamic characteristics are analyzed. Finally, simulations are performed and experiments are conducted to verify the validity of the theory. The results show that increase of axial force has significant amplification effects on the steady-state response amplitude of the displacement, and it reduces the resonance frequency. The response time is still in the millisecond range under a large axial force, which indicates that the bimorph has excellent dynamic characteristics as an actuator.

Suggested Citation

  • Heng Chen & Jun-shan Wang & Chao Chen & Shi-xiang Liu & Hai-peng Chen, 2019. "Dynamic Modeling and Characteristic Analysis of Cantilever Piezoelectric Bimorph," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-9, March.
    • Handle: RePEc:hin:jnlmpe:3926906
    DOI: 10.1155/2019/3926906
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