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dc.contributorVirginia Tech. Center for Intelligent Material Systems and Structuresen_US
dc.contributorDuke University. Department of Mechanical Engineering. Nonlinear Dynamical Systems Laboratoryen_US
dc.contributor.authorStanton, Samuel C.en_US
dc.contributor.authorErturk, Alperen_US
dc.contributor.authorMann, Brian P.en_US
dc.contributor.authorInman, Daniel J.en_US
dc.date.accessioned2015-05-05T16:31:35Z
dc.date.available2015-05-05T16:31:35Z
dc.date.issued2010-10-01
dc.identifier.citationStanton, Samuel C., Erturk, Alper, Mann, Brian P., Inman, Daniel J. (2010). Nonlinear piezoelectricity in electroelastic energy harvesters: Modeling and experimental identification. Journal of Applied Physics, 108(7). doi: 10.1063/1.3486519
dc.identifier.issn0021-8979
dc.identifier.urihttp://hdl.handle.net/10919/52008
dc.description.abstractWe propose and experimentally validate a first-principles based model for the nonlinear piezoelectric response of an electroelastic energy harvester. The analysis herein highlights the importance of modeling inherent piezoelectric nonlinearities that are not limited to higher order elastic effects but also include nonlinear coupling to a power harvesting circuit. Furthermore, a nonlinear damping mechanism is shown to accurately restrict the amplitude and bandwidth of the frequency response. The linear piezoelectric modeling framework widely accepted for theoretical investigations is demonstrated to be a weak presumption for near-resonant excitation amplitudes as low as 0.5 g in a prefabricated bimorph whose oscillation amplitudes remain geometrically linear for the full range of experimental tests performed (never exceeding 0.25% of the cantilever overhang length). Nonlinear coefficients are identified via a nonlinear least-squares optimization algorithm that utilizes an approximate analytic solution obtained by the method of harmonic balance. For lead zirconate titanate (PZT-5H), we obtained a fourth order elastic tensor component of c(1111)(p)=-3.6673 x 10(17) N/m(2) and a fourth order electroelastic tensor value of e(3111)=1.7212 x 10(8) m/V. (C) 2010 American Institute of Physics. [doi:10.1063/1.3486519]
dc.description.sponsorshipDr. Ronald Joslin
dc.description.sponsorshipONR Young Investigator Award
dc.description.sponsorshipUnited States. Air Force. Office of Scientific Research. Multidisciplinary University Research Initiative (MURI) Program - Grant No. F-9550-06-1-0326: Energy Harvesting and Storage Systems for Future Air Force Vehicles
dc.format.extent10 pages
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_US
dc.publisherAmerican Institute of Physics
dc.subjectPiezoelectric fieldsen_US
dc.subjectPiezoelectricityen_US
dc.subjectThermoelasticityen_US
dc.subjectElasticityen_US
dc.subjectPiezoelectric devicesen_US
dc.titleNonlinear piezoelectricity in electroelastic energy harvesters: Modeling and experimental identificationen_US
dc.typeArticleen_US
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/108/7/10.1063/1.3486519
dc.date.accessed2015-04-24
dc.title.serialJournal of Applied Physics
dc.identifier.doihttps://doi.org/10.1063/1.3486519
dc.type.dcmitypeTexten_US


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