A Worm-Like Biomimetic Crawling Robot Based on Cylindrical Dielectric Elastomer Actuators

Area of Science:

• Soft robotics
• Bio-inspired robotics
• Materials science

Background:

• Soft robots, unlike rigid ones, use compliant materials like gels and elastomers.
• Electroactive polymers (EAPs), particularly dielectric elastomer actuators (DEAs), are key components in soft robotics.
• DEAs offer high strain capabilities (over 300%) essential for advanced actuator designs.

Purpose of the Study:

• To present a bioinspired worm-like crawling robot.
• To develop and utilize novel cylindrical actuator segments based on DEAs.
• To incorporate textile reinforcement into silicone structures for enhanced actuator performance.

Main Methods:

• Development of bioinspired worm-like robot architecture.
• Fabrication of cylindrical dielectric elastomer actuator (DEA) segments.
• Integration of textile reinforcement within silicone structures.
• Testing of DEA segments as linear actuators for crawling motion.

Main Results:

• Successful demonstration of a bioinspired worm-like crawling robot.
• Development of functional cylindrical DEA segments acting as linear actuators.
• Enhanced actuator performance through textile reinforcement in silicone structures.

Conclusions:

• The developed DEA-based worm robot showcases promising crawling capabilities.
• Textile reinforcement significantly improves the performance of soft actuators.
• This research advances soft robotics for applications in healthcare and human-machine interaction.