Hysteresis in a carbon nanotube based electroactive polymer microfiber actuator: numerical modeling.
Hysteretic behavior is an important consideration for smart electroactive polymer actuators in a wide variety of nano/micro-scale applications. We prepared an electroactive polymer actuator in the form of a microfiber, based on single-wall carbon nanotubes and polyaniline, and investigated the hysteretic characteristics of the actuator under electrical potential switching in a basic electrolyte solution. For actuation experiments, we measured the variation of the length of the carbon-nanotube-based electroactive polymer actuator, using an Aurora Scientific Inc. 300B Series muscle lever arm system, while electrical potentials ranging from 0.2 V to 0.65 V were applied. Based on the classical Preisach hysteresis model, we presented and validated a numerical model that described the hysteretic behavior of the carbon-nanotube-based electroactive polymer actuator. Inverse hysteretic behavior was also simulated using the model to demonstrate its capability to predict an input from a desired output. This numerical model of hysteresis could be an effective approach to micro-scale control of carbon-nanotube-based electroactive polymer actuators in potential applications.
Center for Bio-Artificial Muscle, Department of Biomedical Engineering, Hanyang University, Seoul 133-791, South Korea.
Kiwon
K
Sohn
Su Ryon
SR
Shin
Sang Jun
SJ
Park
Seon Jeong
SJ
Kim
Byung-Ju
BJ
Yi
Seog Young
SY
Han
Sun I
SI
Kim
D003198:Computer Simulation; D004548:Elasticity / Q000528:radiation effects; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D046911:Macromolecular Substances / Q000737:chemistry / Q000528:radiation effects; D008422:Materials Testing; D008846:Micromanipulation / Q000295:instrumentation* / Q000379:methods; D008956:Models, Chemical; D008968:Molecular Conformation / Q000528:radiation effects; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013314:Stress, Mechanical; D014159:Transducers
D046911:Macromolecular Substances; D037742:Nanotubes, Carbon; D011108:Polymers