The electroactive behavior of ionic polymer–metal composite (IPMC) actuator was
modeled and the optimum parameters for maximizing the bending deformation of the material were
studied. A suitable equation of motion characterizing the mechanical response of the IPMC actuator
subjected to a given electrical field was proposed considering the electro-chemical parameters. To
find the optimum conditions maximizing the blocking force and deflection, multivariable
constrained equation was modeled and design variables such as saturation level of hydration,
applied voltage, and the thickness of IPMC were studied. IPMC samples based on Nafion
membrane were manufactured and the model was verified by experiment.
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