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Tiny drone based on maple seed pod doubles flight time

Picture of the robotic. Credit: Songnan Bai and Pakpong Chirarattananon

A trio of researchers at Metropolis University of Hong Kong has developed a tiny drone based mostly on the maple seed pod. Of their paper printed within the journal Science Robotics, Songnan Bai, Qingning He and Pakpong Chirarattananon, describe how they used the maple seed pod as an inspiration for rising flight time in below 100-gram drones.

Maple seed pods are well-known for his or her helicopter-type design. As they fall from the tree, they spin like a helicopter rotor with no engine, rising their distance from the tree as they’re blown afar. On this new effort, the researchers sought to reap the benefits of the effectivity inherent within the construction of the maple seed pod to extend flight time for tiny drones. To that finish, they constructed a tiny drone that may spin just like the maple seed pod to maintain aloft. The ensuing drone may fly for almost twice so long as these with a conventional four-rotor design.

Most drones have spinning rotors to supply carry. This new design options two tiny rotors on the ideas of the wings to make them spin—the carry comes courtesy of the spinning wings, which accounts for its enhancements in effectivity. The researchers additionally added electronics and a battery on the middle of the drone. The entire thing weighs lower than 35 grams and spins at roughly 200 rpm. Testing confirmed it able to hovering within the air for as much as 24 minutes. The researchers notice that as a result of inherent stability of the design, no stabilizing microprocessor is required. Additionally they famous that they had been in a position to notice position-controlled flight by manipulating the velocity of the tiny rotors.

Flight in open setting. Credit: Songnan Bai and Pakpong Chirarattananon

The researchers additionally examined the power of the drone to hold a small payload, together with a camera. As a result of the digicam spins with the drone, they synched its framerate to coincide with the drone’s spin price, producing a considerably shaky however usable video feed. Additionally they demonstrated its potential to hold a 21.5-gram system to conduct mapping and surveillance operations.

Tiny drone based on maple-seed pod doubles flight time
Credit: Songnan Bai and Pakpong Chirarattananon

How to keep drones flying when a motor fails

Extra data:
Songnan Bai et al, A bioinspired revolving-wing drone with passive perspective stability and environment friendly hovering flight, Science Robotics (2022). DOI: 10.1126/scirobotics.abg5913

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Tiny drone based mostly on maple seed pod doubles flight time (2022, May 16)
retrieved 16 May 2022

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