Papers Published

  1. Stanton, Samuel C. and Erturk, Alper and Mann, Brian P. and Inman, Daniel J., Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators, APPLIED PHYSICS LETTERS, vol. 97 no. 25 (December, 2010) [doi] .
    (last updated on 2011/12/09)

    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. (C) 2010 American Institute of Physics. {[}doi:10.1063/1.3530449]