A Compact High-Force Dielectric Elastomer Membrane Actuator
S. Hau, Universität des Saarlandes, Saarbrücken, Germany
A. York, Parker Hannifin Corporation, Sunnyvale, USA
S. Seelecke, Universität des Saarlandes, Saarbrücken, Germany
Dielectric Elastomer actuators (DEA) show high potential for lightweight, energy efficient and scalable systems. Dielectric elastomer (DE) stack actuators are known to provide high forces and low strokes while compared to DE membrane actuators, which combined with an appropriate biasing mechanism provide relatively lower forces but higher strokes. This work combines the advantages of both concepts by stacking layers of DE membrane actuators. To maintain a compact overall size the biasing mechanism is embedded in the inactive center of the DE membrane actuator stack. Two actuator systems are built. One lifts 7.5 kg while the second one is able to generate 66 N of force at a stroke of 2.25 mm, respectively. These advances enables DE actuators to compete with solenoid actuators in performance and have the advantage of consuming significantly less energy during typical operation.
ACTUATOR 2016 Manuscript C1.2
Publication date: 01/06/2016
Manuscript C1.2 published in Conference Proceedings ACTUATOR 2016
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