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Electromechanical Performance of Viscoelastic Dielectric Elastomer Actuator Undergoing Temperature Variation

[+] Author Affiliations
Junjie Sheng, Shuyong Li, Yuqing Zhang

China Academy of Engineering Physics, Mianyang, Sichuan, China

Lei Liu

Xi’an Jiaotong University, Xi’an, Shaanxi, China

Paper No. SMASIS2015-8846, pp. V001T02A003; 6 pages
doi:10.1115/SMASIS2015-8846
From:
  • ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems
  • Colorado Springs, Colorado, USA, September 21–23, 2015
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5729-8
  • Copyright © 2015 by ASME

abstract

Viscoelasticity causes a time-dependent performance and affects the conversion efficiency of VHB-based dielectric elastomers actuator (DEA), when subject to voltage and temperature. However, few reports focus on the effect of temperature on the viscoelastic electromechanical performance on the DEA. The viscoelastic performance of a VHB film in a circular actuator configuration undergoing temperature variation is studied both theoretically and experimentally. Subjected to temperature variation and voltage, viscoelastic creep and higher deformation at higher temperature are obtained using thermodynamics models. Subsequently, an experiment was designed to validate the simulation and the results indicate that DEA creeps with time due to the viscoelasticity and a bigger deformation can be achieved at a higher temperature, which shows well consistent with the experimental results.

Copyright © 2015 by ASME

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