000015019 001__ 15019
000015019 005__ 20161115100209.0
000015019 04107 $$aeng
000015019 046__ $$k2016-08-21
000015019 100__ $$aChen, Li-Qun
000015019 24500 $$aNonlinear Oscillation of a Circular Plate Energy Harvester

000015019 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015019 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015019 506__ $$arestricted
000015019 520__ $$2eng$$aNonlinear oscillation is treated for a piezoelectric vibratory energy harvester. The harvester consists of a circular composite plate with the clamped boundary, a proof mass and two steel rings. The harvesting system is analytically modeled, numerically simulated, and experimentally tested. A lumped parameter model of the harvester is established with its parameters identified from the experimental data. The equivalent capacitance and the electromechanical coupling coefficient are analytically determined. A technique is proposed to identify the electrical parameter. A fifth polynomial is employed to approximate the nonlinear restoring force. The measured response can be approximately described by the nonlinear lumped model. Both the experimental and the numerical results demonstrate that the circular plate harvester has soft characteristics under low excitation and both hard characteristics and soft characteristics under high excitation. The characteristics can be used to broaden the working bandwidth of the harvester and thus to enhance the energy harvesting.

000015019 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015019 653__ $$a

000015019 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015019 720__ $$aChen, Li-Qun
000015019 8560_ $$ffischerc@itam.cas.cz
000015019 8564_ $$s160123$$uhttps://invenio.itam.cas.cz/record/15019/files/TS.MS04-8.02.pdf$$yOriginal version of the author's contribution as presented on CD,  page 184, code TS.MS04-8.02
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000015019 962__ $$r13812
000015019 980__ $$aPAPER