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Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators

Stanton, Samuel C. ; Erturk, Alper ; Mann, Brian P. ; Inman, Daniel J.

Applied Physics Letters, 20 December 2010, Vol.97(25) [Rivista Peer Reviewed]

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  • Titolo:
    Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators
  • Autore: Stanton, Samuel C. ; Erturk, Alper ; Mann, Brian P. ; Inman, Daniel J.
  • Note di contenuto: This letter investigates the nonlinear response of a bimorph energy harvester comprised of lead zirconate titanate (PZT-5A) laminates. For near resonant excitations, we demonstrate significant intrinsic nonlinear behavior despite geometrically linear motion. Fourth order elastic and electroelastic tensor values for PZT-5A are identified following methods recently published concerning a PZT-5H bimorph. A response trend indicative of a nonlinear dissipative mechanism is discussed as well as the inadequacy of linear modeling. The PZT-5A bimorph exhibits an increased softening frequency response in comparison to PZT-5H. The results contained herein are also applicable to electroelastic sensor and actuator technologies.
  • Fa parte di: Applied Physics Letters, 20 December 2010, Vol.97(25)
  • Soggetti: Interdisciplinary And General Physics
  • Lingua: Inglese
  • Tipo: Articolo
  • Identificativo: ISSN: 0003-6951 ; E-ISSN: 1077-3118 ; DOI: 10.1063/1.3530449
  • Fonte: © 2010 American Institute of Physics (AIP)

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