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To what extent can the bird repellent work of civil aviation airports ensure safety?
author： Release time：2018-04-11Browsing volume：682
With the rapid growth of airliner business and the improvement of ecological environment, bird strike aircraft events become the trend of listing. There are about ten thousand bird hit events in the world every year. The international aviation Federation has upgraded the bird's damage to the "A" (the most likely) aviation disaster. Bird strike is a difficult problem to be answered all over the world.
To what extent can bird repellent work ensure safety?
This is a question of "safety" and "economic efficiency". Of course, there is no bird in the airfield, above and on the route. But this is hard to do, and it costs a lot of money and costs. Suppose a bird weighs 0.45 kilograms and hit a plane at a speed of 960 kilometers per hour. The force of 216 thousand Newtons will be calculated. If a 1.8 kilogram bird hit a plane at a speed of 700 kilometers per hour, the impact force would be greater than the impact of the shell. So the flesh of the birds turned into a "shell" for the fast flying aircraft, the light made the plane fail to fly normally and was forced to land urgently; the heavy man was a disaster. The most commonly used way to drive birds is to drive away. To drive away birds flying near the airport is a very troublesome task, which is unable to solve the fundamental problem.
Here I list some international bird repellent measures:
1, eliminate weeds near the airport and fill the pond to cut off the conditions for birds to live here.
2, clean up around the airport landfill, livestock farms, dry rice Shaichang etc. bird food sources cut off;
3, from the perspective of biological food chain, reduce the number of insects and rodents in the airport flight area, and reduce the possibility of attracting birds.
4, integrate several bird repellent equipment on a car, and the bird repellent is driving a bird driving vehicle.
5. Every day, the bird car was inspected on the bird activities in the airport flight area, and the birds were found, and the firecrackers, fireworks and gas shotguns were used immediately.
6, lay transparent silk woven bird net around the airport runway to form a transparent wall. Birds can easily be sticky when flying over.
7, the bird bird attack: the use of the Hawks, vultures, falcons trained with regularity and other birds of prey to other birds to drive near the airport. Charles De Gaulle Airport in Paris, France, and New York, the United States, at J.F.Kennedy.Apt Airport, have more than 10 birds of raptors, guarding against the airfield runway vigilant every day under the command of experts to defend the safety of the aircraft. China's Yining Airport has successfully used the Falcon to drive and arrest birds in the airfield of the airport.
8, scarecrow: the most traditional way of scarecrow driving birds is to form straw into a human form and hang it in the air to move birds in the wind. This is a simple operation and a low cost.
9. Inflatable man: a set of humanoid material to prevent air leakage is mounted on the blower, and the human shape material is standing or falling down with the suction and the bulge of the blower.
10. After studying the smell of birds, a special odor chemical agent is sprayed on the grass, which makes birds loathe the smell and away from the lawn. An American airport, for example, inject the anisate into the low-lying water near the airport, which smells delicious in humans, but dislikes the birds here, which dispels the birds near the airport. 11, many airports have special drive birds, which combine the ecological features of the airport and around them, and operate in a dense bird - intensive place with special equipment to drive birds. For example, during the daytime, the repellent will use firecrackers and shotguns to drive birds by sound.
12, vigilance on the machine: with bright colors under the wing and the head of the machine, the bird can take the initiative to avoid the aircraft by the vigilance color effect of the biological boundary, and can also add fluorescent material. An Australian airline is said to have a big mouth in front of the plane and two big eyes on both sides to make the plane a big bird, and the birds have never seen such a ferocious kind, so they were scare away.
13. Robot: a foreign company designed a remote control bird catching robot modeled by the eagle, which simulates the movements and sounds of the flying eagle. The results show that after 8 seconds of the "Hawk" robot, all kinds of birds within 1 kilometers of the circle flown away in panic, and sometimes even more distant birds are scare away.
14. Robot bird: China Southern Airlines has developed a robot bird that mimics the action of birds flapping wing to achieve autonomous flight. If you install an audio transmitter on the machine bird, imitate the voice of the bird's natural enemy, it can achieve a very good bird repellent effect.
15, Kongbuyan: in the balloon painted and let the birds afraid pattern, hanging on the grass in the airport. Or the installation of plastic balloon devices, similar to the owls, open their eyes day and night, dance with the wind, and give visual stimulation to birds entering the forbidden area. Powered by natural wind energy, let the hawk face fan rotate rapidly, and the aluminum will send out the reflected light from the sun to drive the birds away.
16, drive bird bomb: the projectile can reach a height of 300 meters. After lift off, it can emit orange red candlelight, stimulate the bird vision system and send out ultra strong infrasonic frequency. It threatens bird flight from vision and hearing, and can make birds deaf in a short time.
17, gas gun: use a device that can only produce sound without damaging. It uses gas as the power and is controlled by computers. Every few minutes, a boom is heard, which makes birds escape.
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