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Bioinspired Hierarchical Soft Gripper with Hexagonal and Suction Interfaces for Strain-Guided Object Handling.
Junho Lee1, Junwon Jang1, Taeyoung Chang1
1Department of Electronic Engineering, Korea National University of Transportation, Chungju-si 27469, Chungbuk, Republic of Korea.
Biomimetics (Basel, Switzerland)
|August 27, 2025
Summary
This study presents a bioinspired soft gripper using octopus suction and frog-inspired patterns for stable object manipulation. The innovative design enhances adhesion in various conditions, advancing robotic capabilities.
Area of Science:
- Robotics and Biomimetics
- Materials Science and Engineering
Background:
- Advanced soft adhesive systems are crucial for next-generation robotics, enabling stable and intelligent object manipulation.
- Current systems face challenges with diverse surface conditions and orientations.
Purpose of the Study:
- To develop a bioinspired soft gripper that enhances adhesion performance under varied conditions.
- To integrate real-time monitoring for intelligent manipulation and load distribution detection.
Main Methods:
- Developed a soft gripper combining octopus-inspired suction with a frog-inspired hexagonal friction pattern.
- Integrated a strain gauge for real-time monitoring of gripping states, contact location, and load distribution.
- Tested adhesion performance under dry and wet conditions, and with various object geometries and inclinations.
Main Results:
- The hexagonal friction pattern improved stability against tilting and shear forces.
- The gripper demonstrated robust adhesion in both dry and wet environments.
- The system showed adaptability to diverse object geometries and inclinations, facilitating intelligent manipulation.
Conclusions:
- The bioinspired soft gripper offers enhanced adhesion and stability for robotic manipulation.
- The integrated strain gauge provides valuable real-time feedback for intelligent control.
- This technology has broad potential applications in collaborative robotics, medical tools, and underwater systems.
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