Chasing biomimetic locomotion speeds: Creating untethered soft robots with shape memory alloy actuators

Area of Science:

• Robotics
• Materials Science
• Biomedical Engineering

Background:

• Soft robots offer advantages in safety and adaptability over rigid robots.
• Developing untethered soft robots with efficient locomotion remains a challenge.

Purpose of the Study:

• To create untethered soft robots capable of dynamic locomotion.
• To utilize compliant lightweight actuators for robotic movement.

Main Methods:

• Incorporation of shape memory alloy actuators into soft robotic structures.
• Design and fabrication of compliant robotic components.
• Testing locomotion capabilities at biologically relevant speeds.

Main Results:

• Successfully developed untethered soft robots.
• Achieved dynamic locomotion at biologically relevant speeds.
• Demonstrated the efficacy of shape memory alloy actuators in soft robotics.

Conclusions:

• Compliant shape memory alloy actuators enable untethered soft robots with dynamic locomotion.
• The developed robots show potential for applications requiring agile movement in complex environments.