Chapter 643 J-11 Turbofan Demonstration Machine
?Although the engine was designed by Chang Haonan himself, he still couldn''t hold back his curiosity. He leaned over and took 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 has a panoramic view.
?The petal-shaped flame stabilizer, the surrounding fine atomizing fuel nozzles, and through these structures, the turbine disc and turbine blades can still be seen faintly...
?Like a finely carved work of art, every part is carefully placed.
? Over 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 installed 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.
Like lifelike statues and real people with flesh and blood.
?It seems there is not much difference, but the latter has 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 pretty good...”
Looking at the scene in front of him, his inner sense of satisfaction and accomplishment instantly filled up.
…
Although Chang Haonan''s own inner drama was very full, he could hardly feel how much time had passed.
To outsiders, this scene is just staring at the chrysanthemums of a fighter jet in a daze.
And I was in a daze for a long time.
But the people standing around had basically 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 unrelated tasks.
?How does one look like someone who is in a daze?
So, they naturally think—
Mr. Chang is in a daze, so he must be thinking.
Since you are thinking about it, it must have deep meaning.
So, the longer you think about it…
?Finally, someone couldn''t hold it any longer, so he came to He Ming''s side and whispered:
"Mr. He...Mr. Chang, he...couldn''t he see some problem?"
?This verification aircraft numbered 1010 is a separate project, named J-11WS, and the leader 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 and he was a little unable to come out.
It would have been better if the person just didn’t say anything.
But now after being mentioned in this way, he also felt a little guilty.
“Should...can’t?”
After he stopped talking for a while, He Mingcai replied in an ambiguous tone:
“We have to conduct an additional inspection after each major step in the final assembly process. It is unlikely that there will be any major problems.”
"And...even if there is a problem, it won''t 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 finally came to his senses after wandering around the tail vent for a while, 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 the bodies of several people on the opposite side shaking violently.
Although it felt a bit strange, he only paused for a moment, and then continued to ask: "What parts of this plane are still unfinished?"
The moment he heard this question, there was a burst of relief around He Ming.
It doesn’t just mean that there is something 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. Not only that the thrust of the left engine is more than 10% higher than that of the right engine, but the control methods of the two engines are completely different.”
“Especially, the turbofan 10 is compatible with full-authority digital control. In this way, when the throttle valve moves, the flight control needs to provide feedback from both analog and digital levels, direct and indirect, at the same time.”
“It’s not difficult to take these things apart individually, 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.
?? They have not never built similar aviation engine verification aircraft in the past, but the main concern at that time was whether the engine would catch fire and explode midway, affecting the safety of the entire aircraft.
For this reason, some proven 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.
?Situations like the current situation where “domestic engine thrust is so powerful that the plane easily yaws” are also technical problems, but they 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 Research Institute to replace the J-8 II ACT with a turbojet 14 and tested the core control algorithm. It was basically straightened out. "
“This time, the main reason is that the distance between the two engines of the J-11 is relatively far, so when the thrust is unbalanced, the yaw problem will be more serious than that of the J-8IIACT. Just slightly correct the parameters.”
Now, after the tempering of two consecutive projects, Project 83 and Project 11, China''s domestic aviation technology research and development capabilities have obviously reached 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 like 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 for an intervention, 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?”
He Ming was stunned by the huge jump between the two questions, and then nodded:
"Yes, there is the Sugon 2000-1, which 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 the Sugon 2000T, which was jointly developed by Sugon Group and your Torch Group. model, it is said that the calculation efficiency of TORCH Multiphysics is specially optimized from the hardware perspective.”
“Is Dawn 2000T already available for purchase?”
??When Chang Haonan received three National Science and Technology Awards early last year, he 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 he entrusted it to the technical staff below, and basically didn’t pay much attention to it despite his busy schedule.
?As a result, just one year has passed, and Shuguang Group has even brought out machines. The efficiency is really a bit ridiculous...
“It hasn’t been officially released yet. It’s in the public testing stage. Sugon Group promised that if there are any problems in the future, it will be responsible for after-sales maintenance, 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 supercomputing now?”
"right."
Chang Haonan naturally didn’t need to be polite to this person, so he replied simply:
“I promised others to help me study the applicability of several algorithms before, so I have to give it a try with a supercomputer.”
“It’s okay.”
?Of course He Ming could not refuse, but after agreeing, he hesitated:
“But it only takes us two or three days to integrate the new flight control. Your research..."
Chang Haonan waved his hand:
“Two or three days is enough. Those algorithms are all derived from my results, so there is no difficulty..."
He Ming was speechless for a moment.
“Then…anyway, the computer room management knows you, so just go and register.”
(End of this chapter)