Chapter 643 J-11 Turbofan Demonstration Machine
Although the engine was designed by Chang Haonan himself, he still couldn't hold back his curiosity and leaned over to take a look inside the tail nozzle.
With the help of almost ubiquitous light sources inside the factory to eliminate shadows, every detail deep in the afterburner can be easily seen.
The structure of the hot end outlet of the engine is fully visible.
The petal-shaped flame stabilizer, the surrounding fine atomizing fuel nozzles, and through these structures, the turbine disk and turbine blades can still be seen faintly...
Like a finely carved work of art, every part is carefully placed.
In the past few months, Chang Haonan has basically been staying with the two batch 01 turbofan 10 prototypes participating in the test every day except for sleeping time.
It is no exaggeration to say that he can figure out how many pipes and cable connections there are on the surface of this type of engine as soon as he closes his eyes.
It’s like having a 3D rendering module in your head.
But.
The feeling of an engine fixed on a high-altitude platform is completely different from that of an engine actually installed on an aircraft.
It's like a lifelike statue and a real person with flesh and blood.
It may seem that there is not much difference, but the latter has a unique vitality...
The supreme interpretation of steel and technology, the beautiful romance of precision machinery.
Even an ordinary person, as long as he takes a look at Chang Haonan, can instantly understand why aero engines can be called the crown jewel of industry.
Even Chang Haonan, who led the entire project research and development process, felt a little intoxicated for a while -
"What, I seem to be quite powerful..."
Looking at the person in front of him At the scene, his inner sense of satisfaction and achievement instantly filled up.
......
Although Chang Haonan's own inner drama was very full, it was almost impossible to feel how much time had passed.
But to outsiders, this scene is just staring at the anus of the fighter jet in a daze.
And I was in a daze for a long time.
But most of the people standing around had worked with the former during the August 3rd Project, and they knew how outrageous the other's mind was.
One person can handle three or four tasks that are not related to each other.
What kind of person does he look like in a daze?
Therefore, they naturally thought that——
Mr. Chang was in a daze, so he must be thinking.
Since you are thinking about it, it must have deep meaning.
So, the longer I think about it...
Finally, someone couldn't hold it any longer, so they came to He Ming's side and whispered:
"Mr. He...Mr. Chang...don't you see some problem?"
This verification aircraft numbered 1010 is a separate project, named J-11WS, and it is the lead It is the latter himself.
So He Ming's subconscious reaction was to shake his head confidently.
However, when he was about to open his mouth to deny it, the words came to his lips but he couldn't come out.
It would have been better if the person just didn’t say anything.
But now after being mentioned like this, he also felt a little guilty.
"Should...can't?"
After hesitating for a while, He Mingcai replied in an ambiguous tone:
"We are in every final assembly process After every major step, you need to check it again. It is unlikely that there will be any major problems."
"And...even if there is a problem, it will not be visible with the naked eye..."
These two sentences are more like explaining to myself than explaining to others.
Fortunately, the effect is good, and the slight mental fluctuation has finally stabilized again.
On the other side, Chang Haonan, after wandering around near the tail vent for a while, finally came to his senses, turned around and looked at the other people again.
"This plane..."
As soon as he opened his mouth, he didn't know if it was an illusion, but out of the corner of his eye, he saw that the bodies of several people on the opposite side seemed to shake violently.
Although it felt a bit strange, he only paused for a moment, and then continued to ask: "What parts of this aircraft are still unfinished?"
Hearing this The moment he asked the question, there was a burst of relief around He Ming.
It’s not just that something went wrong with the plane.
“The flight control system still needs final debugging.”
He Ming finally felt relieved and immediately replied:
"The control rate of this aircraft is really weird. The thrust of the left engine is more than 10% higher than that of the right engine. Not to mention, the control of the two engines The method is completely different.”
“Especially because the turbofan 10 is compatible with full authority digital control. In this way, when the throttle valve moves, the flight control needs to be controlled from both analog and digital, direct and indirect. Feedback can be made at all levels at the same time.”
“It is not difficult to take these things apart, but putting them together still requires more work to ensure the basic controllability of the aircraft.”
Although he was talking about the difficulties he was facing, his tone was obviously quite brisk.
After all, for China Aviation Industry, these are all happy worries.
It’s not like they have never done similar aviation engine verification aircraft in the past, but what they were worried about at the time was whether the engine would catch fire and explode midway, affecting the safety of the entire aircraft.
For this reason, some verification models even specially arrange a complete hydraulic control system for the left and right engines as a backup to prevent the other one from being affected after a single engine failure.
Like the current situation where "the thrust of the domestic engine is so large that the aircraft easily yaws", although it is also a technical problem, it can definitely make everyone laugh out of their dreams.
“Do you need my help?”
Chang Haonan patted the little engine oil that had just been stained on his hands, returned to where the other people were standing, and asked at the same time.
He Ming waved his hand:
“That’s not necessary. When we were preparing to develop the J-11WS, we worked with the 601 Institute to specially replace a turbojet on the J-8IIACT. 14. I have tested the core control algorithm and it has basically been straightened out.”
“This time it is mainly because the distance between the two engines of the J-11 is relatively far, so the thrust is unbalanced and it yaws. The problem will be more serious than that of the J-8IIACT. Just modify the parameters a little.”
Now after two consecutive projects, the 83rd Project and the 11th Project, China’s domestic aviation technology research and development capabilities have become obvious. Climbed a new level.
This is naturally a good phenomenon, and can liberate Chang Haonan from some trivial projects to a large extent.
Just like the J-11WS.
Strictly speaking, this aircraft is not part of the Turbofan 10 project, but it is indispensable for the Turbofan 10.
If he needs to be personally responsible for completing it as well as the engine itself, then the entire project will probably be delayed by at least a year than it is now.
Now that the other party said that he could complete it on his own, Chang Haonan naturally would not forcefully ask to intervene, but simply changed the topic:
"By the way, I heard from my senior sister before that Shengfei purchased two new supercomputers from Sugon Group this year?"
The huge jump between the two questions made He Ming stunned. Then nodded:
"Yes, there is a Sugon 2000-1 that was developed in the second half of last year. Its performance can probably catch up with the international level in 1993-94. There is also a Sugon 2000T, which is the Sugon Group. The model jointly developed with your Torch Group is said to have specially optimized the computing efficiency of TORCH Multiphysics."
"Shuguang 2000T is already available for purchase?"
Chang Haonan. When one person received three National Science and Technology Awards at the beginning of last year, I discussed the idea of "bundled sales" with Academician Li Jie, director of the Institute of Computing Technology of the Academy of Sciences and chairman of Shuguang Group.
However, the difficulty of this idea is actually mainly in the hardware. There is not much that Torch Group needs to do. It only needs to peel off some of the functions of the professional enhanced version and add them to the professional version, and customize Sugon 2000T for public release to global users. The authorized version is sufficient.
So after that, he entrusted it to the technical staff below, and basically didn’t pay much attention to it despite his busy schedule.
It turns out that it has only been a short year now, and Shuguang Group has even taken out the machines. The efficiency is really a bit ridiculous...
“It has not been officially released yet, it is considered a public testing stage. Well, Shuguang Group promised to take care of after-sales maintenance if there is any problem in the future, so we bought it in advance.”
He Ming briefly explained the origin of this machine, and then changed the topic:
"Mr. Chang needs to use a supercomputer now?"
"Yes."
Chang Haonan naturally does not need to be polite here, and simply replied:
"Before If you agree to help others study the applicability of several algorithms, you have to run it with a supercomputer. "
"It's okay."
Of course, He Ming couldn't refuse, but after agreeing, he hesitated:
"But it only takes us two or three days to integrate the new flight control. With your research ..."
Chang Haonan waved his hand:
"Two or three days are enough. Those algorithms are all derived from my results, there is no difficulty..."
He Ming was speechless for a moment.
"Then... In short, the computer room management knows you, so just go and register."
(End of Chapter)