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MULTIPHYSICS MODELING OF IONIC GEL ACTUATORS

Published online by Cambridge University Press:  22 March 2012

Huibiao Li,
Meie Li and
Jinxiong Zhou
Huibiao Li
Affiliation:
MOE Key Laboratory for Strength and Vibration and School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, P. R. China
Meie Li
Affiliation:
State Key Laboratory for Mechanical Behavior of Materials and School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, P. R. China
Jinxiong Zhou*
Affiliation:
MOE Key Laboratory for Strength and Vibration and School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, P. R. China
*
*Corresponding author: jxzhouxx@xjtu.edu.cn
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Abstract

When an electrocatalyst, platinum, was coated on ionic-polymer gel surfaces and was immersed into an acidic formaldehyde solution, an input dc current will produce oscillatory ac on the surfaces of the ionic-polymer-metal-composites(IPMC), which eventually causes self-oscillatory bending of the actuators. Typical IPMC actuators have a large length-to-height ratio, exhibiting large deformation during bending and relaxation processes. A multiphysics modeling of self-oscillations of IPMC actuator was carried out, incorporating the electrochemical oscillations, electrokinetics, electrostatics and nonlinear large deformation of the actuators.

Keywords

polymerbiologicalactuator

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References

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