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Related Experiment Video

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Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers
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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.)
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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.

Keywords:
light poweredphase changepneumaticrollingsoft robots

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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.