Free-standing tubular DEAs for multi-directional bending

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

Beitragende

Abstract

Highly anisotropic, fiber-based structures are a successful concept in nature. Usual dielectric elastomer actuators are entirely soft and rely on the integration of stiff carrier frames for the fragile dielectric membranes. Within this work, a completely soft, fiber-reinforced free-standing tubular actuator concept is presented. The circumferentially running carbon fibers are integrated into the inner electrode of the DEA and stabilize the cross-section, while having negligible impact on the mechanical stiffness in the axial direction. Through the segmentation of the outer electrode of the actuator, active bending in the corresponding directions is achieved. Moreover, if all segments are activated simultaneously, the actuator expands axially. The presented manufacturing approach allows for the adjustment of the dimensions over a wide range of diameters and lengths. Furthermore, the local stiffness of actuators can be tailored by varying the amount of fibers incorporated into the electrode. The electroactive deformation of actuators with different diameter-to-length ratios and fiber densities is investigated.

Details

OriginalspracheEnglisch
TitelElectroactive Polymer Actuators and Devices (EAPAD) XXV
Redakteure/-innenHerbert R. Shea
Herausgeber (Verlag)SPIE - The international society for optics and photonics
ISBN (elektronisch)9781510660717
PublikationsstatusVeröffentlicht - 2023
Peer-Review-StatusJa

Publikationsreihe

ReiheProceedings of SPIE - The International Society for Optical Engineering
Band12482
ISSN0277-786X

Konferenz

TitelElectroactive Polymer Actuators and Devices XXV
KurztitelEAPAD 2023
Veranstaltungsnummer25
Dauer13 - 15 März 2023
StadtLong Beach
LandUSA/Vereinigte Staaten

Externe IDs

ORCID /0000-0002-7062-9598/work/174430547
ORCID /0000-0003-1058-4030/work/174432461

Schlagworte

Schlagwörter

  • bending actuator, cylindrical DEA, dielectric elastomer actuator, fiber reinforcement, free-standing DEA, manufacturing fiber-elastomer composites, tubular DEA, unidirectional actuator