TY - GEN
T1 - Multiple-scale analysis of a novel piezoelectric energy harvester with a tunable potential function
AU - Qian, Feng
AU - Abaid, Nicole
AU - Zuo, Lie
N1 - Funding Information:
This research was supported by National Science Foundation under grant no.1508862.
Publisher Copyright:
Copyright © 2019 ASME.
PY - 2019
Y1 - 2019
N2 - This paper presents the theoretical modeling and multiplescale analysis of a novel nonlinear piezoelectric energyharvester composed of a steel beam, piezoelectric films and acompressive spring at the moveable end. The harvesterexperiences mono- and bi-stable regimes as the potential energyfunction varies from a flatted parabolic shape with a single wellto a double-well shape along with the increasing spring predeformation. Using the energy method and Galerkinapproximation, the governing equations are derived with twohigh-order coupling terms induced by the axial motion of thebeam. The analytical strategies and implementation processes ofthe method of multiple scales are systematically introduced toanalyze the nonlinear dynamics of the harvester either in themono- or bi-stable status. Numerical simulations are performedto verify the approximate analytical solutions of frequencyresponses and phase portraits. The influence of the electricalresistance, excitation level and the spring pre-deformation on thevoltage outputs and dynamics of the harvester are investigated.Results show that the spring pre-deformation has a slightinfluence on the performance of the mono-stable system, but anevident effect on that of the bi-stable system.
AB - This paper presents the theoretical modeling and multiplescale analysis of a novel nonlinear piezoelectric energyharvester composed of a steel beam, piezoelectric films and acompressive spring at the moveable end. The harvesterexperiences mono- and bi-stable regimes as the potential energyfunction varies from a flatted parabolic shape with a single wellto a double-well shape along with the increasing spring predeformation. Using the energy method and Galerkinapproximation, the governing equations are derived with twohigh-order coupling terms induced by the axial motion of thebeam. The analytical strategies and implementation processes ofthe method of multiple scales are systematically introduced toanalyze the nonlinear dynamics of the harvester either in themono- or bi-stable status. Numerical simulations are performedto verify the approximate analytical solutions of frequencyresponses and phase portraits. The influence of the electricalresistance, excitation level and the spring pre-deformation on thevoltage outputs and dynamics of the harvester are investigated.Results show that the spring pre-deformation has a slightinfluence on the performance of the mono-stable system, but anevident effect on that of the bi-stable system.
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U2 - 10.1115/DSCC2019-9091
DO - 10.1115/DSCC2019-9091
M3 - Conference contribution
AN - SCOPUS:85076490737
T3 - ASME 2019 Dynamic Systems and Control Conference, DSCC 2019
BT - Modeling and Control of Engine and Aftertreatment Systems; Modeling and Control of IC Engines and Aftertreatment Systems; Modeling and Validation; Motion Planning and Tracking Control; Multi-Agent and Networked Systems; Renewable and Smart Energy Systems; Thermal Energy Systems; Uncertain Systems and Robustness; Unmanned Ground and Aerial Vehicles; Vehicle Dynamics and Stability; Vibrations
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2019 Dynamic Systems and Control Conference, DSCC 2019
Y2 - 8 October 2019 through 11 October 2019
ER -