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Applied Physics Letters / Volume 97 / Issue 25 / INTERDISCIPLINARY AND GENERAL PHYSICS

Appl. Phys. Lett. 97, 254101 (2010); http://dx.doi.org/10.1063/1.3530449 (3 pages)

Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators

Samuel C. Stanton1, Alper Erturk2, Brian P. Mann1, and Daniel J. Inman2

1Department of Mechanical Engineering, Dynamical Systems Laboratory, Duke University, Durham, North Carolina 27708, USA
2Department of Mechanical Engineering, Center for Intelligent Material Systems and Structures, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA

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(Received 11 October 2010; accepted 2 December 2010; published online 23 December 2010)

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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KEYWORDS and PACS

Keywords

electric generators, energy harvesting, frequency response, tensors

PACS

  • 84.60.-h

    Direct energy conversion and storage

  • 84.70.+p

    High-current and high-voltage technology: power systems; power transmission lines and cables

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3530449

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    S. Stanton, A. Erturk, B. Mann, and D. Inman, J. Appl. Phys. 108, 074903 (2010)JAPIAU000108000007074903000001.

    A. Arrieta, P. Hagedorn, A. Erturk, and D. Inman, Appl. Phys. Lett. 97, 104102 (2010)APPLAB000097000010104102000001.

    A. Erturk, J. Hoffmann, and D. Inman, Appl. Phys. Lett. 94, 254102 (2009)APPLAB000094000025254102000001.

    S. Stanton, C. McGehee, and B. Mann, Appl. Phys. Lett. 95, 174103 (2009)APPLAB000095000017174103000001.

    L. Gammaitoni, I. Neri, and H. Vocca, Appl. Phys. Lett. 94, 164102 (2009)APPLAB000094000016164102000001.

    F. Cottone, H. Vocca, and L. Gammaitoni, Phys. Rev. Lett. 102, 080601 (2009).

    H. Tiersten, J. Appl. Phys. 74, 3389 (1993)JAPIAU000074000005003389000001.


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