There is a specialized term in the aviation industry called bird strike, which means that a bird collides with an aircraft. The vast majority of birds have the characteristics of small size and light weight, so the damage caused by bird strikes mainly comes from the speed of the aircraft rather than the mass of the birds themselves. According to the kinetic energy theorem, E=1/2 × MV2, where M is the mass of the bird, in kilograms; V is the sum of the velocity vectors of birds and aircraft, in meters per second. Due to the low flight speed of birds, which can be ignored, it can be considered that the speed of birds relative to the aircraft is the speed of the aircraft. A typical aircraft's low altitude climb speed is between 150 knots to 250 knots, which is 77 meters per second to 128 meters per second. If the aircraft collides with a 0.5 kilogram bird at this time, it will generate approximately 1500 to 4000 joules of energy, which is instantly absorbed by the aircraft, causing varying degrees of damage to the contact area< Br/>
The high-speed movement of the aircraft has caused the destructive power of bird strikes to reach an astonishing level. The damage of bird strikes to aircraft is closely related to the location of the impact, and the impacts that cause severe damage are mostly concentrated in the navigation system and power system. Bird strikes mainly occur during takeoff and landing, and are concentrated in areas such as the windshield, engine, and leading edge of the nose and wings. Among them, the probability of windshields and engines is the highest, and these parts are also relatively weak and crucial parts of the aircraft, so the consequences of being hit by birds are very serious, which brings great safety hazards to the airport. In order to solve this problem, more and more airports are using bird repellents. So how to choose a bird repellent suitable for airport use?
1. Choose different types of bird repellents for different types of birds
Different types of birds have varying degrees of sensitivity to stimuli such as sound and flash. Therefore, when selecting bird repellents suitable for airport use, it is necessary to choose different types of bird repellents based on the local bird species. For example, for birds such as night herons who enjoy nocturnal activities, they can choose a bird repellent with a flashing function; For birds such as sparrows that enjoy daytime activities, they can choose sonic bird repellents.
2. Considering the surrounding environment of the airport
The surrounding environment of the airport is also one of the factors that needs to be considered when selecting bird repellents suitable for airport use. If there are densely populated areas such as residential and commercial areas around the airport, it is necessary to choose bird repellents that have low noise and will not affect the lives and work of surrounding residents.
3. Price and Effect
When choosing a bird repellent suitable for airport use, price and effectiveness also need to be considered. Generally speaking, the higher the price, the better the bird repellent effect. However, in practical applications, it is also necessary to consider the local situation comprehensively to ensure the optimal balance between price and effectiveness.
With the expansion of airport scale and the rapid development of the aviation industry, airport bird repellents have become one of the important means to understand and solve airport safety hazards. When selecting bird repellents suitable for airport use, it is necessary to consider the local situation comprehensively and use them correctly to ensure their maximum effectiveness.
