Chapter 1015 The prototype was successfully developed

"Director Liu, do you think this is appropriate! Our 'skunk factory', can ordinary workers come in and work!" Zhao Zhongyao looked at Liu Tianming again and said.

Liu Tianming listened to Zhao Zhongyao's words, then looked at him again and said: "Well, what you said is very reasonable, then you say, how should we recruit some skilled workers to complete our major production tasks." ”

"You don't have to worry about this Director Liu, I will select some excellent workers from some of the military industrial bases of our general equipment. Let them help us with the production of this prototype. Zhao Zhongyao said again.

"Okay, then I'll leave that to you. Hurry up and find some skilled workers!" Liu Tianming also looked at Zhao Zhongyao happily and said.

In this way, Zhao Zhongyao found some skilled workers, and Liu Tianming applied for some research funds for the prototype from Liu Changyun, and began to study the prototype of this stealth fighter.

Originally, it was very difficult to study a new type of fighter. It's like crossing a river by feeling the stones, there is no way to go, everything is moving forward in groping.

But with a master like Zhao Zhongyao, it's different. He can avoid many detours in the development process.

In addition, the skilled workers found by Zhao Zhongyao are also very high-quality skilled workers, all of whom are like Zhao Gang and Li Nansong, who have many years of technical experience in machinery manufacturing.

In this way, Zhao Zhongyao's time to develop this prototype is greatly shortened. Originally, under normal circumstances, it would take at least a year to study a prototype. But here in Zhao Zhongyao, it only took two months to develop and produce this prototype.

When this prototype was produced, Zhao Zhongyao called Liu Tianming and Liu Changyun to their 'Skunk Factory'. I want the two of them to take a look at the prototype he designed and developed.

Liu Tianming and Liu Changyun looked at the prototype of the stealth fighter developed by Zhao Zhongyao, and felt that this prototype was very well studied. Exactly the same as a real airplane. It feels like this is not a prototype, it's a real fighter.

"Zhongyao, how did you develop it, you developed this prototype so quickly, your work efficiency is really amazing!" Liu Tianming couldn't help but praise Zhao Zhongyao after looking at the prototype in front of him.

"Yes, Zhongyao, your work efficiency is really amazing! This is an airplane, how did you produce it so quickly. Liu Changyun also looked at Zhao Zhongyao in surprise and said.

"Minister Liu, whatever we do, we have to have a plan. Just have a well-thought-out plan and follow it step by step. Sometimes, the reason why we do things very slowly is because we don't have a careful plan when we do such a thing. When doing this one, you will take many detours and waste a lot of precious time. ”

For Zhao Zhongyao, he didn't know how to explain why he would develop this prototype so quickly. He could only say some reasons that seemed to be very important, but this reason was not at all an important reason why he developed this prototype so quickly.

Liu Tianming and Liu Changyun listened to Zhao Zhongyao's words, and they felt that it was also very reasonable, and they even believed it. I don't feel that Zhao Zhongyao is just talking nonsense!

"Zhongyao, then this prototype has been developed, what is the next step, is it to start a test flight!" Liu Changyun can be said to be a layman in the development of aircraft. When he saw that the prototype had been developed, he wondered if he could start the test flight now.

Zhao Zhongyao listened to Liu Changyun's words, then smiled again and said, "Minister Liu, things are not so simple. Airplanes are not comparable to automobiles, and as soon as a new car is developed, it will be ready for trial training. After the new model of the aircraft is developed, it will not be able to test fly in the air immediately. Because it's dangerous to do that. If you want the plane to fly into the sky, you must first let the plane 'fly' on the ground for a period of time before it can fly into the sky!"

"Oh, this plane has to 'fly' on the ground first! What's going on, how can a plane fly on the ground. If the altitude is too low, won't it also affect flight safety?" Liu Changyun listened to Zhao Zhongyao's words, and asked another layman's question.

"Minister Liu, I said 'flying' on the ground. It's not really flying, it's a flight simulation experiment in a wind tunnel. It's a simulated flight, not a real flight. Zhao Zhongyao looked at Liu Changyun again and said.

"Oh, I see, the wind tunnel you built earlier was designed to allow planes to fly on the ground. Liu Changyun listened to Zhao Zhongyao's words, as if he had thought of some questions, so he said this again.

"Of course, the wind tunnel laboratory we developed was designed to allow the prototype to fly on the ground. After any new aircraft is developed, it must first conduct high-altitude flight training in a wind tunnel. It is only in the wind tunnel that it is possible to fly at real heights after a simulated flight. Wouldn't it be dangerous if you didn't do this wind tunnel experiment and just let the plane fly into the sky!"

Zhao Zhongyao saw that Liu Changyun did not know much about how to develop a new type of aircraft, so he explained to Liu Changyun in detail how the new plane was developed, such a problem that ordinary people are not very familiar with.

"Zhongyao, in this way, we will soon be able to put this prototype into the wind tunnel experiment for flight simulation. Liu Tianming looked at Zhao Zhongyao again and said.

"Of course it is. However, before entering the wind tunnel laboratory, I still need to fly a comprehensive inspection of this aircraft. If there are no problems, do another static experiment. If there are no problems, you can drive to the wind tunnel laboratory for flight simulation training. Zhao Zhongyao looked at Liu Tianming and Liu Changyun again and said.

"Oh, and do a static experiment. What is a static experiment. "Liu Changyun is a layman in aircraft manufacturing, and when he heard Zhao Zhongyao's words, he felt that this 'static experiment' was a new term for him, and he wanted to know about this new term.

Zhao Zhongyao listened to Liu Tianming's words, smiled and said: "This term is a very professional term, if you want to know, I can explain it to you." ”

"Okay, you can say it!" Liu Tianming looked at Zhao Zhongyao, wanting to hear how he explained.

"Static experiment is one of the contents of structural testing, which is an important means to verify the correctness of the structural strength and static analysis of the aircraft by observing and studying the strength, stiffness, stress and deformation distribution of the aircraft structure or components under static load. The loading system for full-scale structural static testing is complex. Before the 40s of the 20th century, during the static test, the aircraft was placed upside down, and lead or sand particles were packed in bags to simulate the distributed load of the wings, and the iron block was hoisted on the rope to simulate the concentrated load, which was a simple method. Later, switch to electromechanical afterburner or hydraulic actuator and jack loading. Since the 40s, the static test of full-scale structures has been loaded by a lever system, and a multi-point coordinated loading system has been adopted to ensure that each loader can be loaded according to a predetermined proportion, and can be automatically unloaded when the structure is damaged, so as to avoid the further expansion of the damage site. In the 70~80s, the static test has adopted an electro-hydraulic servo system controlled by an electronic computer, an automatic closed loop coordinated loading system, with hundreds of loaders, hundreds of loading points, hundreds of measurement channels, and thousands of strain gauges, and the electronic computer is used for data acquisition and processing.

Structural static experiments require the design and fabrication of structural test pieces, support systems, and loading devices, which are then installed and commissioned together with instruments that measure displacement, strain, and load. After the debugging is completed, the experiment can be carried out in the following two steps: (1) the pre-experimental stage. According to a certain procedure, a small load is slowly added step by step, the displacement and strain measurement points are observed and monitored, the basic trend of structural bearing and deformation is found, and the reliability of the experimental piece, support system, loading device and measuring equipment is checked. (2) Formal trial stage. 5~10% of the estimated load is often taken as the initial load, and the initial stress, strain and displacement are measured. Then, according to a certain program, it is loaded step by step, evenly and slowly, and the data of each strain measurement point, displacement measurement point and load measurement point are measured and recorded one by one. At the same time, the specimen is carefully observed until the predetermined load or predetermined experimental condition is reached. Formal experiments sometimes have to be repeated several times. Finally, the experimental specimen was inspected, the residual deformation and damage were carefully observed, and the recorded displacement, strain and load data were processed and error analyzed to draw scientific experimental conclusions. ”

Zhao Zhongyao told Liu Tianming what he knew about static experiments. After Liu Tianming heard this, he felt that he had benefited a lot, he looked at Zhao Zhongyao and said: "Zhongyao, how do you know everything, I don't seem to have heard of this knowledge." ”

"Director Liu, you are a leader, how can you learn these professional knowledge, I am engaged in technology, of course it is different. In order to design this stealth fighter, I learned a lot about aircraft manufacturing. ”

In fact, the knowledge that Zhao Zhongyao said was something he had learned long ago before his death. Although he was a physicist during his lifetime. But the knowledge of these static experiments also belongs to the category of physics. Zhao Zhongyao has also dabbled in this knowledge.

"Okay, Zhongyao, now that you have this knowledge, you can conduct static experiments. If the static experiment is successful, it will be possible to conduct flight experiments on this prototype in the wind tunnel. ”

Liu Tianming listened to Zhao Zhongyao's knowledge about static experiments, and he imagined what they might have to do next.

"That's right, we're going to do a static experiment on this prototype first. If the structure of the aircraft is completely reasonable and the flight requirements are met, we can let the aircraft be in the wind tunnel for flight experiments. Zhao Zhongyao looked at Liu Tianming again and said.

"Okay, then you can do the static experiment! We're running out of time. It is also very difficult to produce the first new fighter within a year. ”

Liu Changyun didn't speak just now, but now after listening to Zhao Zhongyao and Liu Tianming's words, he also echoed and said.

"That's right, Minister Liu is right, we still have to hurry up and produce the first real stealth fighter. We must produce our new fighter before the next 'Bamboo Sea Air Show'." In this way, when it comes to the air show, we can let our fighters show their style on the 'Bamboo Sea Air Show'. Zhao Zhongyao said again.

"Okay, then we won't bother you, you can hurry up and work!" After Liu Changyun finished speaking, he looked at Liu Tianming again and said, "Tianming, then let's go!

"Okay, we won't bother you. You guys hurry up and work hard!" After Liu Tianming finished speaking, he came out of the experimental workshop of the new fighter with Liu Changyun.

Zhao Zhongyao sent the two leaders out of the factory gate, and then returned to the aircraft experimental workshop. Look at the prototype you have developed. Zhao Zhongyao was also very happy. However, he knew that this prototype could not fly into the sky. It's just an experimental machine doing flight experiments on the ground.

If they want their fighters to fly into the sky, they have to develop a new type of fighter again. Only then will they be able to successfully develop the first new fighter.

Next, Zhao Zhongyao led some of his engineers and technicians to conduct a series of static load-bearing experiments on this prototype.

Of course, before such an experiment was carried out, Zhao Zhongyao was also very confident. He knew that there would be no problems with the prototype he had developed. Because, the prototype he developed used some of the most advanced aircraft materials. Some materials, which may not even be available abroad, were developed by Zhao Zhongyao himself.

For a scientist who has long known some advanced aircraft manufacturing materials, if he is building a fighter that he has known for a long time, he will definitely be able to avoid many detours. And it's possible to get it right the first time.

In this way, Zhao Zhongyao and his scientific and technological personnel conducted a series of static experiments on this prototype. The results of the experiment made everyone very satisfied. Because all the experimental data of this prototype are qualified. It was exactly what was expected. This made Zhao Zhongyao and his scientific and technological personnel very happy.