shape-memory alloy wires tagged posts

Illustration of DeployBots deploying themselves on a planet for space exploration. Credit: Wang et al. ©2017 Royal Society of Chemistry

The new robot can move itself without motors or any additional mechanical components. The robot “walks” when an electric current is applied to shape-memory alloy wires embedded in its frame: the current heats the wires, causing the robot’s flexible segments to contract and bend. Sequentially controlling the current to various segments in different ways results in different walking gaits.

The researchers expect that the robot’s ability to be easily deployed, along with its low mass, low cost, load-bearing ability, compact size, and ability to be reconfigured into different forms may make it useful for applications such as space missions, seabed exploration...