Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators | Zendy

Samuel C. Stanton | Zendy; Alper Ertürk | Zendy; Brian P. Mann | Zendy; Daniel J. Inman | Zendy

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Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators

Author(s) -

Samuel C. Stanton,

Alper Ertürk,

Brian P. Mann,

Daniel J. Inman

Publication year - 2010

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3530449

Subject(s) - bimorph , lead zirconate titanate , materials science , nonlinear system , dissipative system , piezoelectricity , actuator , micropower , softening , ferroelectricity , condensed matter physics , acoustics , composite material , physics , optoelectronics , dielectric , thermodynamics , engineering , electrical engineering , power (physics) , quantum mechanics

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. © 2010 American Institute of Physics

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