Please use this identifier to cite or link to this item: doi:10.22028/D291-30864
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Title: Continuum vibration analysis of dielectric elastomer membranes
Author(s): Nalbach, Sophie
Rizzello, Gianluca
Seelecke, Stefan
Editor(s): Bar-Cohen, Yoseph
Language: English
Title: Electroactive Polymer Actuators and Devices (EAPAD) 2017
Pages: 8
Publisher/Platform: SPIE
Year of Publication: 2017
Title of the Conference: SPIE Smart Structures and Materials + Nondestructive Evaluation 2017
Place of the conference: Portland, Oregon, United States
Publikation type: Conference Paper
Abstract: Dielectric Elastomer (DE) transducers are well known for the possibility of responding to an applied voltage with relatively large actuation strains, often larger than 100%, and for their relatively high actuation bandwidth (order of several kHz). However, up to date there are relatively few applications which use the dynamic behavior of DEs. Some relevant examples include loudspeakers and fluid dispensers. Motivated by the potentialities of DEs in high-frequency applications, the aim of this work is the investigation of the continuous vibrations observed when DE membranes are actuated electrically. The system under analysis consists of a circular DE membrane pre-loaded with a spring. While exciting the DE membrane actuator with high-voltage, high-frequency signals, the motion of the membrane is detected with a 3D laser vibrometer which uses Doppler effect to reconstruct the system spectrum and vibration modes. An extensive experimental investigation is performed to study the influence of system parameters, such as membrane geometry and pre-stress, on the membrane frequency spectrum and vibrational modes.
DOI of the first publication: 10.1117/12.2258609
URL of the first publication:
Link to this record: hdl:20.500.11880/29093
ISBN: 978-1-5106-0811-5
Date of registration: 6-May-2020
Notes: Proceedings of SPIE ; volume 10163
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Systems Engineering
Professorship: NT - Prof. Dr. Stefan Seelecke
Collections:UniBib – Die Universitätsbibliographie

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