Please use this identifier to cite or link to this item: doi:10.22028/D291-29780
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Title: Design and Control of a High-Speed Positioning System Based on Dielectric Elastomer Membrane Actuators
Author(s): Hau, Steffen
Rizzello, Gianluca
Hodgins, Micah
York, Alexander
Seelecke, Stefan
Language: English
Title: IEEE ASME transactions on mechatronics : a joint publication of the IEEE Industrial Electronics Society and the ASME Dynamic Systems and Control Division
Volume: 22
Issue: 3
Startpage: 1259
Endpage: 1267
Publisher/Platform: IEEE
Year of Publication: 2017
Publikation type: Journal Article
Abstract: Dielectric elastomers (DEs) represent a new family of electromechanical transducers capable of undergoing large actuation stroke (>100%), allowing it to achieve performance that is not attainable with standard transduction technologies (e.g., piezo). Furthermore, DEs' high flexibility permits us to design actuators with various shapes and sizes, allowing us to meet desired stroke or force specifications in a wide range of applications. This work aims to show the potential of DE technology in micropositioning applications by presenting development, manufacturing, and control of a one-directional flexure system driven by two circular out-of-plane DE actuators (COP-DEAs). The two COP-DEAs are coupled in an antagonistic configuration that, under the application of a voltage, provides push-pull forces on a custom built compliant unidirectional stage. After describing design and fabrication of the actuator, experimental characterization is performed. Finally, a feedforward control strategy is implemented in order to let the displacement follow a desired periodic profile. The unloaded stage is capable of accurately following sinusoidal and triangular trajectories, having a fundamental frequency of 60 Hz and a peak value of 40 μm, with a maximum error of 2 and 5 μm, respectively.
DOI of the first publication: 10.1109/TMECH.2017.2681839
URL of the first publication:
Link to this record: hdl:20.500.11880/28186
ISSN: 1083-4435
Date of registration: 24-Oct-2019
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Systems Engineering
Professorship: NT - Prof. Dr. Stefan Seelecke
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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