Shulou(Shulou.com)11/24 Report--

CTOnews.com, October 27, according to the West University of Technology, the "Cloud Owl" bionic flapping-wing vehicle independently developed by Professor Song Bifeng of the School of Aeronautics of Northwestern Polytechnic University has passed the on-site test of the national professional certification agency, with a single continuous flight time of 123 minutes.

What is the study of bird flight mechanism? Professor Song Bifeng said that in the flapping wing design, based on the study of the aerodynamic mechanism of high lift, high thrust and low drag of bird wings, the team put forward an efficient aerodynamic shape and structure design method of the bionic wing, which makes the flapping wing have the best lift-drag aerodynamic characteristics and propulsion effect in the process of flight, and improve the flight efficiency and endurance performance of the aircraft.

Led by Professor Song Bifeng, the bionic aircraft research team of Northwestern Polytechnic University has been engaged in the field of bionic flight technology for more than 20 years since 2001. it has broken through the difficult problems such as low Reynolds number / unsteady aerodynamic calculation and test, high performance bionic flapping wing design, high efficiency flapping mechanism design and development of micro flight control system suitable for flapping wing aircraft. We have successively developed bionic aircraft with different characteristics, such as "carrier pigeon", "small falcon", "golden Finch", "hummingbird", "cloud owl" and "albatross".

CTOnews.com learned that the bionic flapping wing aircraft is a flight mode that imitates the flapping wings of creatures such as birds, which has the potential to achieve long-distance flight on the scale of micro air vehicles, and has strong maneuverability because the flapping wing has more degrees of freedom. Not only that, bionic flapping-wing aircraft has bionic, concealment and portability, generally for hand-throwing take-off, gliding landing, take-off and landing is not limited by the site, but also like micro fixed-wing aircraft to achieve fast high flight, long-distance cruising and so on.

The bionic flapping-wing aircraft developed by the team has completed more than 3000 sorties in more than 20 regions across the country, such as Beijing, Shenyang, Shenzhen, Beichuan, Yangbajing (elevation 4300m) and Daocheng (altitude 4100m). It can be used in-1040 ℃, grade 4 wind and light rain and snow environment. Pilot applications have been carried out in many units such as Shaanxi Geological Bureau, Qinghai Lake Scenic spot and so on.

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