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doi:10.22028/D291-37654
Titel: | A Multi‐Mode, Multi‐Frequency Dielectric Elastomer Actuator |
VerfasserIn: | Gratz‐Kelly, Sebastian Rizzello, Gianluca Fontana, Marco Seelecke, Stefan Moretti, Giacomo |
Sprache: | Englisch |
Titel: | Advanced Functional Materials |
Bandnummer: | 32 |
Heft: | 34 |
Verlag/Plattform: | Wiley |
Erscheinungsjahr: | 2022 |
Freie Schlagwörter: | acoustics actuators dielectric elastomers multi-function machines tactile devices vibrations |
DDC-Sachgruppe: | 500 Naturwissenschaften |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | This paper presents a principle to develop multi-function dielectric elastomer actuators (DEAs) that can concurrently accomplish linear actuation and sound generation through a single electrical input. A centimeter-scale cone-shaped DEA is fabricated using silicone-based dielectric and electrodes. Measurements of the vibro-acoustic response reveal that the pumping deformation of the DEA contributes to a negligible extent in the sound generation, which is hence ascribable to higher order structural modes whose frequency pass-band is highly uncoupled from that of the pumping mode. Exciting the DEA with a multi-chromatic input voltage allows achieving strokes close to 1 mm or blocking forces over 0.5 N, while simultaneously generating sound pressure levels over 60 dB, regardless of possible forces and/or mechanical constraints on the DEA pumping motion. The ability of the DEA to concurrently generate linear actuation and sound is demonstrated via proof-of-concept tests: the DEA can reproduce music, while at the same time generating a deformation pulse or lifting a load comparable with its own blocking force. Furthermore, measuring the current generated by the DEA allows detecting deformations impressed by the exterior and use the DEA as an active audio-tactile interface, which produces a combined vibro-acoustic stimulus in response to a user's touch. |
DOI der Erstveröffentlichung: | 10.1002/adfm.202201889 |
URL der Erstveröffentlichung: | https://onlinelibrary.wiley.com/doi/10.1002/adfm.202201889 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-376545 hdl:20.500.11880/34069 http://dx.doi.org/10.22028/D291-37654 |
ISSN: | 1616-3028 1616-301X |
Datum des Eintrags: | 18-Okt-2022 |
Bezeichnung des in Beziehung stehenden Objekts: | Supporting Information |
In Beziehung stehendes Objekt: | https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fadfm.202201889&file=adfm202201889-sup-0001-SuppMat.pdf https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fadfm.202201889&file=adfm202201889-sup-0002-VideoS1.m4v https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fadfm.202201889&file=adfm202201889-sup-0003-VideoS2.m4v https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fadfm.202201889&file=adfm202201889-sup-0004-VideoS3.m4v |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Systems Engineering |
Professur: | NT - Prof. Dr. Stefan Seelecke |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
Adv Funct Materials - 2022 - Gratz‐Kelly - A Multi‐Mode Multi‐Frequency Dielectric Elastomer Actuator.pdf | 4,54 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons