Imagine a robot that can wedge itself through the cracks in rubble to search for survivors trapped in the wreckage of a collapsed building. Engineers are working toward to that goal with CLARI, short for Compliant Legged Articulated Robotic Insect.
Coming to a tight spot near you: CLARI, the little, squishable robot that can passively change its shape to squeeze through narrow gaps -- with a bit of inspiration from the world of bugs.
Kabutz and his colleagues introduced the miniature robot in a study published Aug. 30 in the journal"Advanced Intelligent Systems." CLARI is still in its infancy, added Kaushik Jayaram, co-author of the study and an assistant professor of mechanical engineering at CU Boulder. The robot, for example, is tethered to wires, which supply it with power and send it basic commands. But he hopes that, one day, these petite machines could crawl independently into spaces where no robot has crawled before -- like the insides of jet engines or the rubble of collapsed buildings.
Unlike Jayaram's earlier mechanized cockroach, each of CLARI's legs functions almost like an independent robot -- with its own circuit board and dual actuators that move the leg forward and backward and side-to-side, similar to a human hip joint. Theoretically, that modularity might allow CLARI robots to take on a wide variety of shapes.
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