Frequency response of fiber reinforced DEAs

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

  • Stefania Konstantinidi - , École Polytechnique Fédérale de Lausanne (Autor:in)
  • Markus Koenigsdorff - , Professur für Festkörperelektronik (Autor:in)
  • Thomas Martinez - , École Polytechnique Fédérale de Lausanne (Autor:in)
  • Yoan Civet - , École Polytechnique Fédérale de Lausanne (Autor:in)
  • Gerald Gerlach - , Professur für Festkörperelektronik (Autor:in)
  • Yves Perriard - , École Polytechnique Fédérale de Lausanne (Autor:in)

Abstract

Dielectric Elastomer Actuators (DEAs) have emerged as versatile and promising devices for a multitude of applications, including soft robotics, haptic interfaces, and artificial muscles. DEAs are an interesting soft actuator technology due to their high energy density, and fast response. They can be described as compliant capacitors composed of a dielectric elastomer film situated between two electrodes. When a voltage is applied, it induces a compressive Maxwell stress, causing a reduction in thickness and thus an expansion in the other dimensions. However, DEAs tend to exhibit limited deformations under uni-axial forces. To overcome this limitation and induce substantial uni-axial deformations, it is suggested that DEAs should be constrained in the other directions. This constraint can be realized by reinforcing the DEA with unidirectional fibers, resulting in strains up to 75% higher for reinforced DEAs than for conventional DEAs. In this paper, the response time of uni-axial fiber-reinforced DEAs is studied, to evaluate the influence of the reinforcement on the frequency response. To that end, uni-axial fiber reinforced DEAs with a silicone dielectric layer are fabricated by embedding 3D printed fibers of different materials onto the actuators. Fused deposition modelling is used by tuning the infill of the printed part, allowing a fast, simple, and accessible fabrication of the fibers. The response time of the actuators is improved with the use of uni-axial fiber reinforced DEAs, as they provide a more rigid structure and less losses, with a decrease of up to 15% in the response time.

Details

OriginalspracheEnglisch
TitelElectroactive Polymer Actuators and Devices (EAPAD) XXVI
Redakteure/-innenJohn D. Madden
Herausgeber (Verlag)SPIE - The international society for optics and photonics
ISBN (elektronisch)9781510671966
PublikationsstatusVeröffentlicht - 2024
Peer-Review-StatusJa

Publikationsreihe

ReiheProceedings Of Spie
Band12945
ISSN0277-786X

Konferenz

TitelElectroactive Polymer Actuators and Devices XXVI
KurztitelEAPAD 2024
Veranstaltungsnummer26
Dauer25 - 27 März 2024
OrtHilton Long Beach Hotel
StadtLong Beach
LandUSA/Vereinigte Staaten

Externe IDs

ORCID /0000-0002-7062-9598/work/174430534