Abstract
The electroactive behavior of an ionic polymer–metal composite (IPMC) actuator wasmodeled and the optimum design parameters for actuation were also studied. An actuationmodel characterizing the mechanical response of the IPMC under a given electrical fieldwas proposed considering the electro-chemical parameters. To find the optimum conditionsmaximizing the tip deflection and blocking force, a multivariable constrained optimizationequation was proposed in which the saturation level of hydration, applied voltage and thethickness of IPMC were used as decision variables. IPMC samples with variable thicknesswere manufactured based on a Nafion membrane and the effect of decision variables on thetip deflection, blocking force and response time of the IPMC was studied. Theproposed model and the simulation of optimization were validated by experiment.
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