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This nifty flying robot can hover, bank, and turn as deftly as a fruit fly - DelFly Nimble - an agile insect-inspired robot-CEhu-FePBC0_xvid.avi (01/35)
That's pretty neat! On 13 Sep 2018 22:08:42 -0700, Miloch wrote: more at https://arstechnica.com/science/2018...s-a-fruit-fly/ Flying insects like bees, dragonflies, and fruit flies can perform impressive aerodynamic feats, particularly when seeking to evade predators or the swatting motion of a human hand. Now Dutch scientists have built a flying robot capable of executing similar maneuvers—despite being much larger than the average insects—that could shed light on how these creatures achieve those feats. The scientists described their work in a new paper in Science. --- Matej Karasek of the Delft University of Technology in The Netherlands has long been intrigued by the agility of flying insects, using them as inspiration to develop tail-less flapping-wing robots. "The major challenge was to come up with a wing actuation mechanism that would allow independently controlling body rotations around the three body axes," he says. And that mechanism had to be sufficiently lightweight for the robot to be able to carry it. The flight of fruit flies provided the key. Karasek programmed his robot to mimic their hypothesized flight biomechanics. It worked like a charm, and the result is the prototype DelFly Nimble flying robot. The robot's wings beat 17 times per second, generating lift and also making the robot capable of controlling flight direction by slight adjustments in wing motion. It can hover and fly in any direction (up, down, forward, backward, and sideways), as well as perform banked turns and 360-degree flips, akin to loops or barrel rolls—just like a fruit fly, despite being significantly larger than the insect. It also boasts excellent power efficiency, capable of hovering for five minutes or flying more than a kilometer on a single charge. more at https://arstechnica.com/science/2018...s-a-fruit-fly/ * |
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