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22 March 2006 Muscle-like linear actuator using an ionic polymer-metal composite and its actuation characteristics
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Abstract
IPMC (Ionic Polymer-Metal Composite) actuators produce large bending displacements under low input voltages and are flexible enough to be implemented for biological and/or biomimetic applications. In this study, IPMC was considered for the development of a natural muscle- like linear actuator. For the purpose of design, numerical analysis was utilized to predict free strain and blocked stress of IPMC-based linear actuators, which we considered as the important parameters of muscle-like actuator. An elementary unit composed of an IPMC and the base polymer, NafionTM, was proposed for an effective linear actuator. In order to find an optimal design and evaluate the actuation characteristics of the proposed elementary unit, actuation displacement and force were numerically calculated. The optimal elementary unit produced the maximum free strain of 25% under an applied 2V input.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sangki Lee and Kwang J. Kim "Muscle-like linear actuator using an ionic polymer-metal composite and its actuation characteristics", Proc. SPIE 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), 616820 (22 March 2006); https://doi.org/10.1117/12.655257
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