Multifunctional Magnetic Muscles for Soft Robotics
13 hours ago
- #soft robotics
- #magnetic composites
- #artificial muscles
- Artificial magnetic muscles integrate phase-change polymers and ferromagnetic particles for superior mechanical and actuation performance.
- The composite muscle can dynamically adjust stiffness with a switching ratio exceeding 2.7 × 10³, enabling high load-bearing capacity (up to 1000 and 3690 for tensile and compressive stresses, respectively).
- It demonstrates reversible extension, contraction, bending, and twisting, with stretchability exceeding 800%.
- The muscle exhibits high maximum modulus (2.4 GPa), elongation at break (815%), damping ratio (1.348), actuation strain rate (63.8% s−1), work density (129.5 kJ m−3), and energy efficiency (90.9%).
- A biphasic composite variant enhances stretchability and damping capacity, making it suitable for applications requiring precise control and vibration mitigation.
- Demonstrated as a soft continuum robotic manipulator, it performs complex tasks like grasping, lifting, and precise placement with minimal vibrations.
- Potential applications include biomedical devices, soft robotics, and precision manufacturing, with future prospects in 3D printing and sensor integration.