A research team has presented the PigeonBot II , a flying pigeon robot that imitates the flight of birds, using programmable wings and other adaptive reflexes. This development integrates biomimetic engineering and real feathers to achieve stability in turbulent conditions.
The pigeon robot and its bird-inspired design
The design of PigeonBot II is inspired by the natural flight mechanisms of pigeons, which adjust the shape of their wings and tail to achieve stability in the skies. However, compared to aircraft that rely on fixed structures to control pitch and yaw, birds manage to maneuver with unparalleled flexibility, even in adverse air changes.
The PigeonBot II’s success lies in its ability to replicate these adjustments thanks to a reflexive control system . Equipped with a biomimetic skeleton and 52 real pigeon feathers, the robot can extend, fold and adjust its wings and tail to counteract instabilities such as Dutch roll.
Wind tunnel and outdoor testing demonstrated that wing and tail adjustments enable PigeonBot II to fly stably, even in turbulent conditions. This control system mirrors how bird feathers react to wind, adjusting to autonomously stabilise flight .
Stanford University robot research and development team leader Eric Chang said: “ Our research unlocks the secrets of bird flight, and opens the door to more efficient and stealthy aircraft .”
Tests are being carried out on the pigeon-inspired robot. Source: Science Robotics
The development of biomimetic flying robots has applications in aviation and surveillance. The ability to fly rudderless could reduce the radar signature of autonomous aircraft, making them ideal for stealthy missions or complex environments. In addition, the adaptive approach reduces energy consumption, increasing efficiency.
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Source and photo: Science Robotics
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