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Proceedings Paper

DEAP-based energy harvesting using vortex-induced vibrations
Author(s): Thorben Hoffstadt; Robert Heinze; Tim Wahl; Frank Kameier; Jürgen Maas
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Paper Abstract

Generators based on dielectric electroactive polymers (DEAP) convert mechanical strain energy into electrical field energy. In order to harvest renewable energy from ambient sources adequate generator setups have to be developed. Thus, in this contribution a DEAP generator is presented which uses periodic vortex induced vibration of a circular cylinder as excitation mechanism, by which e.g. Flow energy of a wind or water current can be converted. For this purpose a novel generator design consisting of a cylinder that is elastically mounted on DEAP material is presented. Since the effect of vortex induced vibrations depends on the stiffness and damping of the utilized generator's eigenmode, a method to adapt both via the electrostatic pressure and energy conversion is proposed. After the validation of the general functionality of the novel generator design, analyses concerning the control of the overall harvester are carried out.

Paper Details

Date Published: 26 March 2014
PDF: 11 pages
Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 90561E (26 March 2014); doi: 10.1117/12.2045077
Show Author Affiliations
Thorben Hoffstadt, Hochschule Ostwestfalen-Lippe (Germany)
Robert Heinze, Fachhochschule Düsseldorf (Germany)
Tim Wahl, Fachhochschule Düsseldorf (Germany)
Frank Kameier, Fachhochschule Düsseldorf (Germany)
Jürgen Maas, Hochschule Ostwestfalen-Lippe (Germany)

Published in SPIE Proceedings Vol. 9056:
Electroactive Polymer Actuators and Devices (EAPAD) 2014
Yoseph Bar-Cohen, Editor(s)

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