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Proceedings Paper

A multiphysics model for self-oscillatory ionic polymer-metal composite actuators
Author(s): Doyeon Kim; Kwang J. Kim
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Paper Abstract

In our previous work [1], we have reported a novel approach to electrochemically driven Ionic Polymer-Metal Composites (IPMCs) that exhibit their self-oscillatory deformation in a cantilever bender configuration. When a constant current was imposed to IPMCs, under certain conditions IPMCs exhibit their periodic deformation. In order to better understand such an electro-chemo-mechanical behavior of IPMCs--particularly for self-oscillation--we have developed a multi- physics based mathematical model, which accounts for electrochemical and electromechanical phenomena, along with surface chemistry, simultaneously. A model study was performed to predict the kinetically driven potential oscillations for electrochemical oxidation of formaldehyde on the Pt-IPMC surface. The physical phenomena of the studied system are described in coupled differential equations. In addition, experiments were conducted to acquire important model parameters. The proposed model was implemented in a MATLAB platform. Seemingly, the model accurately predicts the self- oscillating and non-linear behavior IPMCs.

Paper Details

Date Published: 22 March 2006
PDF: 10 pages
Proc. SPIE 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), 61681X (22 March 2006); doi: 10.1117/12.654734
Show Author Affiliations
Doyeon Kim, Univ. of Nevada/Reno (United States)
Kwang J. Kim, Univ. of Nevada/Reno (United States)


Published in SPIE Proceedings Vol. 6168:
Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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