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Bionic Snail Robot Enhanced by Poroelastic Foams Crawls Using Direct and Retrograde Waves
1State Key Laboratory of Bioelectronics and Jiangsu Key Laboratory of Remote Measurement and Control, School of Instrument Science and Engineering, Southeast University, Nanjing, China.
Soft Robotics
|December 28, 2023
Summary
Researchers developed a bionic snail robot inspired by snail locomotion. This soft robot uses transverse patterns for variable friction, achieving faster, more energy-efficient movement and increased load capacity.
Area of Science:
- Biomimetics
- Robotics
- Soft Matter Physics
Background:
- Snails utilize pedal waves and mucus for efficient locomotion on diverse surfaces.
- Understanding snail crawling mechanics can inspire novel robotic designs.
Purpose of the Study:
- To develop a soft bionic snail robot mimicking natural snail locomotion.
- To investigate the effect of variable friction and mucus simulants on robot performance.
Main Methods:
- Designing a robot with transverse patterns on a longitudinal wave mechanism.
- Utilizing poroelastic foam for soft constraints and robot flexibility.
- Modeling robot segments with Euler-Bernoulli beam theory and experimental validation.
Main Results:
- The bionic robot successfully demonstrated retrograde wave locomotion.
- Shear-thickening fluids significantly improved speed (49%) and reduced energy consumption (33%).
- The robot achieved enhanced load capacity, carrying up to 2.84 times its weight.
Conclusions:
- The bionic design effectively mimics snail crawling, enhancing robotic locomotion.
- Soft constraints and variable friction are crucial for efficient movement.
- Findings offer insights for developing advanced biomimetic robots and locomotion systems.
