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Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators

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Date
2010-12-20
Authors
Stanton, SC
Erturk, A
Mann, BP
Inman, DJ
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Abstract
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.
Type
Journal article
Permalink
https://hdl.handle.net/10161/5089
Published Version (Please cite this version)
10.1063/1.3530449
Publication Info
Stanton, SC; Erturk, A; Mann, BP; & Inman, DJ (2010). Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators. Applied Physics Letters, 97(25). pp. 254101. 10.1063/1.3530449. Retrieved from https://hdl.handle.net/10161/5089.
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Scholars@Duke

Mann

Brian Mann

Professor in the Department of Mechanical Engineering and Materials Science
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