mandag 18. mars 2013

UAV - Type fiskeørn


Penn University Team Develops Quad-Copter with Grappling Claws



For bedre vidceo sjekk her: http://tinyurl.com/cseah6g

Justin Thomas and his team at the University of Pennsylvania in Philadelphia drew inspiration from the hunting mechanics of aerial birds of prey to develop a grappling arm and manipulator that mimic an eagles talons and which can be attached to a quad-copter micro-UAV (MAV).
The arm features a two-prong, dual-joint manipulator 3D printed from ABS plastic that snatches objects at relative speeds up to 1 m/s and holds them securely in a spherical recess.
According the University of Pennsylvania study, whose results will be formally announced in August at the International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, enabling a MAV to quickly dart in and retrieve items has more than a few benefits:
Acquiring, transporting and deploying payloads while maintaining a significant velocity are important since they would save MAVs time and energy by minimizing required flight time. For example, high-speed grasping could be used in rescue operations where speed and time are critical, and in operations requiring a MAV to quickly swoop down and pickup an object of interest. Moreover, the dynamic grasping functionality could also be extended to achieve perching capabilities, which could be used to quickly escape high winds, achieve immediate silence in stealth operations, and improve mission duration by reducing hover time. Particular requirements for grasping and perching are planning of feasible dynamic trajectories and precise control.


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