Impact of uncertainties on the actuation of DE multilayer transducers

Tim Krüger; Jürgen Maas

doi:10.1117/12.2559114

3 June 2020 Impact of uncertainties on the actuation of DE multilayer transducers

Tim Krüger, Jürgen Maas

Proceedings Volume 11375, Electroactive Polymer Actuators and Devices (EAPAD) XXII; 1137516 (2020) https://doi.org/10.1117/12.2559114
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only

Abstract

Dielectric elastomers (DE) are thin polymer films which are coated with compliant and conductive electrodes on each side. By stacking several layers, multilayer transducers can be realized, which maximize force or absolute deformation caused by the influence of an electrical field. Due to uncertainties in manufacturing processes and material parameters, deviations in the intended design parameters naturally occur. This paper deals with impacts on the actuation characteristics caused by uncertainties when manufacturing multilayer transducers. First, by formulating an appropriate mathematical model for a proposed DE multilayer transducer design and defining relevant design parameters, the effect of deficient electrodes is pointed out. Moreover, the model is used to derive analytic expressions to describe deviations from nominal actuation force and stretch caused by the mentioned uncertainties. Utilizing exemplary design parameters, results of the analytical approach are compared with numerical experiments using the Monte-Carlo-Method. Finally, the obtained results are discussed and conclusions about the impact of uncertainties and relevant influencing parameters are pointed out.

Citation Download Citation

Tim Krüger and Jürgen Maas "Impact of uncertainties on the actuation of DE multilayer transducers", Proc. SPIE 11375, Electroactive Polymer Actuators and Devices (EAPAD) XXII, 1137516 (3 June 2020); https://doi.org/10.1117/12.2559114

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