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Related Experiment Video

Updated: Aug 6, 2025

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot

Published on: June 10, 2020

Caterpillar-inspired soft crawling robot with distributed programmable thermal actuation.

Shuang Wu¹, Yaoye Hong¹, Yao Zhao¹

¹Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, USA.

Science Advances

|March 22, 2023

Summary

This summary is machine-generated.

This study presents an energy-efficient, caterpillar-inspired soft robot. Programmable heating of liquid crystal elastomer actuators enables multiple crawling modes and obstacle navigation.

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Area of Science:

Soft robotics
Materials science
Biomimetics

Background:

Inspiration from nature, like caterpillars, drives soft robotic development.
Liquid crystal elastomers (LCEs) offer tunable thermal-responsive properties.

Purpose of the Study:

To develop an energy-efficient, caterpillar-inspired soft robot.
To achieve multiple crawling modes and bidirectional locomotion using programmable heating.

Main Methods:

Utilizing silver nanowire networks in LCE-based thermal bimorph actuators.
Patterned and distributed joule heating for controlled curvature.
Investigating thermal bimorph behavior for optimized actuation.

Main Results:

Demonstrated bidirectional locomotion through controlled friction.
Achieved multiple crawling modes with varying speeds.
Successfully navigated obstacles with limited spacing.

Conclusions:

Distributed, programmable heating in LCEs enables multifunctional soft robots.
This approach offers unprecedented capabilities for smart soft robotic systems.