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Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
Published on: April 25, 2020
Hysteresis in a carbon nanotube based electroactive polymer microfiber actuator: numerical modeling
Kiwon Sohn1, Su Ryon Shin, Sang Jun Park
1Center for Bio-Artificial Muscle, Department of Biomedical Engineering, Hanyang University, Seoul 133-791, South Korea.
Journal of Nanoscience and Nanotechnology
|December 1, 2007
Summary
Researchers modeled the hysteresis in carbon-nanotube-based electroactive polymer actuators. This model aids in precise micro-scale control for nano/micro-applications.
Area of Science:
- Materials Science
- Polymer Science
- Nanotechnology
Background:
- Smart electroactive polymer actuators are crucial for nano/micro-scale applications.
- Hysteretic behavior in these actuators presents control challenges.
Purpose of the Study:
- To investigate the hysteretic characteristics of a microfiber electroactive polymer actuator.
- To develop and validate a numerical model for predicting this hysteresis.
Main Methods:
- Fabrication of a microfiber actuator using single-wall carbon nanotubes and polyaniline.
- Measurement of actuator length variation under electrical potential cycling (0.2 V to 0.65 V) in a basic electrolyte.
- Application of the classical Preisach hysteresis model for numerical simulation.
Main Results:
- The study characterized the hysteretic behavior of the carbon-nanotube-based electroactive polymer actuator.
- A validated numerical model accurately described the observed hysteresis.
- The model successfully simulated inverse hysteresis, demonstrating predictive capabilities.
Conclusions:
- The developed numerical model effectively describes the hysteretic behavior of carbon-nanotube-based electroactive polymer actuators.
- This model offers a viable approach for micro-scale control in potential applications.
- Understanding and modeling hysteresis is key for optimizing electroactive polymer actuator performance.
