Please use this identifier to cite or link to this item: doi:10.22028/D291-30845
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Title: Permanent magnets as biasing mechanism for improving the performance of circular dielectric elastomer out-of-plane actuators
Author(s): Loew, Philipp
Rizzello, Gianluca
Seelecke, Stefan
Editor(s): Bar-Cohen, Yoseph
Language: English
Title: Electroactive Polymer Actuators and Devices (EAPAD) 2017
Pages: 8
Publisher/Platform: SPIE
Year of Publication: 2017
Title of the Conference: SPIE Smart Structures and Materials + Nondestructive Evaluation 2017
Place of the conference: Portland, Oregon, United States
Publikation type: Conference Paper
Abstract: Dielectric Elastomers (DE) represent an attractive technology for the realization of mechatronic actuators, due to their lightweight, high energy density, high energy efficiency, scalability, and low noise features. In order to produce a stroke, a DE membrane needs to be pre-loaded with a mechanical biasing mechanism. In our previous works, we compared the stroke achieved with different biasing mechanisms for a circular out-of-plane DE Actuator (DEA), i.e., hanging masses, linear and bi-stable springs. The novel contribution of this paper is the investigation of a biasing design approach based on permanent magnets. The resulting magnet-based actuators are usually more compact than the spring-based ones, allowing to obtain more compact systems. Two design solutions are proposed and compared, namely a first one characterized by a stable actuation, and a second one which permits to achieve a higher stroke, but it is intrinsically unstable. The effectiveness of the novel design solution is assessed by means of several experiments.
DOI of the first publication: 10.1117/12.2258390
URL of the first publication:
Link to this record: hdl:20.500.11880/29086
ISBN: 978-1-5106-0811-5
Date of registration: 4-May-2020
Notes: Proceedings of SPIE ; volume 10163
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Systems Engineering
Professorship: NT - Prof. Dr. Stefan Seelecke
Collections:UniBib – Die Universitätsbibliographie

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