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Phys.org — Technology · October 1, 2026 · On the brief until October 15, 2026

A continuous artificial muscle unlocks dexterous soft-robot motion

RoboticsMechanical EngineeringMaterials Science
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Researchers designed a continuous shape-memory alloy muscle with contact points that activate specific segments along its length. The approach allows a single actuator to produce multiple distinct bends and operate tools such as grippers. This removes the need for separate motors at every joint, cutting weight and bulk in soft robotic arms.

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Engineers must balance the energy savings of whole-length actuation against the higher power needs and slow cooling times of fine regional control.

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