Dynamic performance of dielectric elastomers utilized as acoustic actuators

Hochradel K, Rupitsch S, Sutor A, Lerch R, Vu DK, Steinmann P (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Applied Physics A: Materials Science and Processing Springer Verlag (Germany)

Publisher: Springer Verlag (Germany)

Pages Range: -

DOI: 10.1007/s00339-012-6837-2

Abstract

We report on the frequency dependent behavior of dielectric elastomer actuators (DEA). The introduced smart material actuators consist of 3M™'s elastomer VHB™4905 (9469) and a compliant, sputtered copper electrode on each side. The presented experiments on these compounds contain the active tuning of their resonance frequency and their application as acoustic actuators.We are able to decrease the membranes' eigenfrequency by 30% with an electrical offset potential. Alternatively, if an alternating signal is applied, sound pressure levels up to 130 dB in an enclosed volume of 28 ccm are achieved. In order to verify the results, a numerical simulation is introduced incorporating the two physical fields involved: electrical and mechanical. © 2012 Springer-Verlag.

Authors with CRIS profile

Klaus Hochradel Lehrstuhl für Autonome Systeme und Mechatronik Stefan Rupitsch Lehrstuhl für Autonome Systeme und Mechatronik Alexander Sutor Lehrstuhl für Autonome Systeme und Mechatronik Reinhard Lerch Lehrstuhl für Autonome Systeme und Mechatronik Duc Khoi Vu Lehrstuhl für Technische Mechanik Paul Steinmann Lehrstuhl für Technische Mechanik

How to cite

APA:

Hochradel, K., Rupitsch, S., Sutor, A., Lerch, R., Vu, D.K., & Steinmann, P. (2012). Dynamic performance of dielectric elastomers utilized as acoustic actuators. Applied Physics A: Materials Science and Processing, -. https://dx.doi.org/10.1007/s00339-012-6837-2

MLA:

Hochradel, Klaus, et al. "Dynamic performance of dielectric elastomers utilized as acoustic actuators." Applied Physics A: Materials Science and Processing (2012): -.

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