Do you know how the Y-20 was ruined? Our fat chick was put on a big shelf, and then all kinds of machines frantically output it until it broke! How painful is this process? How can it be considered a success? What is the point of the test scene nearly ten years ago, which has only been made public until now?
But it's actually a very important scientific experiment, called the whole machine static destruction test. The purpose is to test whether the structure of the aircraft can withstand the various pressures in flight, and whether the design of the aircraft is correct. So how does this experiment be considered successful?
The whole aircraft static damage test, simply put, is to use a special machine to simulate various situations that the aircraft may encounter in flight, such as take-off, landing, strong winds, air currents, etc., to apply different forces to the wings, body, tail and other parts of the aircraft, and then see if the aircraft will be deformed or broken.
This test is difficult to do because the structure of the aircraft is complex, there are many parts and screws, and each part has different stresses, which need to be accurately controlled and measured. Moreover, this test is a one-time thing, and once it starts, it cannot be stopped, only until the plane is destroyed.
So, what makes this a success? Actually, there is no set standard, because every country and every aircraft is different. But generally speaking, there are two basic indicators: one is the maximum force that the aircraft can withstand, usually 1.5 times its design force, and the other is the force at which the aircraft breaks, usually 1.8 times its design force.
If the aircraft is severely deformed or damaged before these two indicators are reached, then it is a sign that it has a design problem and needs to be revised. If the aircraft can successfully meet these two indicators, or even exceed these two indicators, then it means that its design is qualified and can move to the next step of test flight and production.
Recently, the static destruction test of the Y-20 machine was made public for the first time, and the scene was very shocking!
The Y-20 is a large transport aircraft built by the mainland itself, and it is also one of the most advanced aircraft in the world, second only to the American C-17 and the Russian Il-76, with a length of 46.59 meters, a wingspan of 44.5 meters, a maximum take-off weight of 220 tons, a maximum load of 73 tons, and a maximum range of 7,800 kilometers. You know the data, maybe everyone says something slightly different, anyway, it's very bullish and you just applaud! The Y-20 can perform various tasks under complex climatic and terrain conditions, such as transporting supplies, airborne troops, medical rescue, humanitarian aid, and so on.
The test process was spectacular and thrilling, the Yun 20 was constantly stretched, compressed, and twisted, and all parts made a squeaky sound, and the wings were even pulled to nearly 90 degrees, as if they were about to break, which made people feel distressed.
However, the Y-20 performed very well, withstood all the tests strongly, exceeded expectations time and time again, broke new records, and proved its strength and safety. The ultimate load and the destructive load far exceeded the design load, and even reached the world's advanced level, and everyone cheered and was proud of it.
The trial, which has been kept secret for years and has not been made public until recently, is significant. This is the first time that China has conducted a static destruction test of a large aircraft, and few countries in the world have been able to do such a difficult test. The openness of the test reflects the self-confidence and openness of China's military industry, and the Y-20 has made great progress and achievements, and is no longer afraid of the prying eyes and threats of foreigners, and has the strength and confidence to walk with the world. Of course, the development of Y-20 also needs to communicate and cooperate with the world, and it also needs to be recognized and respected by the world.
About the first public static destruction test of the whole machine of the Fat Girl Yun 20, what do you think, welcome to leave a message and discuss with everyone!