Engineers have developed a 'brainless' soft robot that can effortlessly traverse difficult terrain.
This new and advanced soft robot is based on the concept of “physical intelligence,” which refers to objects whose behavior is shaped with respect to structural design and the materials they are composed of. This feature allows it to navigate autonomously, without the need for guidance from their developers or even their computers.
One half consists of a twisted ribbon that stretches in a straight line, while the other is a tightly twisted ribbon that spirals like a staircase. Due to its uneven design, one end of the robot applies greater force to the ground compared to the other end. “The concept behind our new robot is fairly simple: because of its asymmetrical design, it turns without having to come into contact with an object. So, while it still changes directions when it does come into contact with an object – allowing it to navigate mazes – it cannot get stuck between parallel objects. Instead, its ability to move in arcs allows it to essentially wiggle its way free,” explained Yao Zhao, first author of the paper and a postdoctoral researcher at NC State.
The scientists put its soft robot's navigation skills to the test by making it traverse through several difficult mazes, such as those with moving walls, as well as areas narrower than its own body dimensions. They tested the new robot design on a metal surface and in sand. The need for soft robots that can travel on rough surfaces is expected to rise in the near future. Because of their distinctive form and characteristics, they have a wide range of applications in a variety of sectors, including search and rescue operations,The results have been reported in the journal
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