Recent Advances in Dielectric Elastomer Actuator-Based Soft Robots: Classification, Applications, and Future...

Area of Science:

• Robotics
• Materials Science
• Actuation Technology

Background:

• Traditional rigid robots face limitations in complex environments.
• Soft robotics, particularly Dielectric Elastomer Actuators (DEAs), offers promising alternatives.
• DEAs provide high energy density, rapid response, low noise, and compliance.

Purpose of the Study:

• To systematically review the research progress of DEA-based soft robots over the past decade.
• To categorize DEAs and analyze their working principles, structural features, and applications.
• To examine DEA adaptability in underwater and terrestrial robotics and identify research challenges.

Main Methods:

• Classification and comparative analysis of DEAs based on initial shape (planar, saddle-shaped, cylindrical, conical).
• Analysis of DEA performance in bionic propulsion, multi-modal motion, and environmental adaptability.
• Review of optimization strategies for DEAs in different application scenarios.

Main Results:

• DEAs are categorized into four basic types with detailed working principles and applications.
• Analysis of DEA adaptability in underwater and terrestrial environments highlights specific challenges and strategies.
• Summary of current performance and research challenges in DEA-driven soft robots.

Conclusions:

• DEAs are crucial for advancing soft robotics in diverse applications.
• Future research should focus on material development, structural design, intelligent control, and system integration.
• DEAs offer significant potential for medical treatment, detection, and human-robot interaction.