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A Rolling Light-Driven Pneumatic Soft Actuator Based on Liquid-Gas Phase Change
Wenfei Ai1,2, Jiaxin Wu1,2, Yue Long1,3
1CAS Key Laboratory of Bio-inspired Materials and Interfaces Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Advanced Materials (Deerfield Beach, Fla.)
|February 10, 2025
Summary
This study introduces a novel light-driven actuator using thermal strain and photothermal effects. This innovative fiber actuator enables continuous rolling and lifting motions for remote object manipulation without complex light control.
Area of Science:
- Materials Science
- Mechanical Engineering
- Optics
Background:
- Traditional double-layer actuators are limited to thin film deformation.
- Remote control applications require advanced actuator designs.
Purpose of the Study:
- To develop a novel light-driven actuator capable of complex motion.
- To overcome the limitations of traditional thin film actuators.
Main Methods:
- Utilizing thermal strain and local photothermal effects from low boiling point liquids.
- Inducing asymmetry along the fiber axis for elastic deformation.
- Generating torque through sustained elastic deformation under continuous irradiation.
Main Results:
- Fabrication of a fiber actuator enabling rolling translation.
- Development of a ring actuator achieving simultaneous rolling and lifting motion.
- Demonstration of continuous rolling motion under light irradiation.
Conclusions:
- The proposed actuator offers a new method for light-driven remote object manipulation.
- Continuous rolling motion simplifies control requirements.
- This technology provides insights for diverse application scenarios.
