Chapter 172 Fly-by-wire Flight Control System
Xu Yuan hung up the phone without delay. He simply picked up the manuscripts scattered on the desk and hurriedly left the office to the Institute of Fluid Mechanics.

The news about Xu Chongxing was undoubtedly good news. After such a long time, there was finally new progress in Jincheng.

At the beginning, he came up with the canard aerodynamic layout plan of winglets, lifting body and canard, and successfully approved the project of the latest generation of domestic stealth fighter.

The project is under the charge of Jincheng Aircraft Design and Research Institute.

Although he kept an eye on the situation over the past few years, progress was slow.

After all, the latest generation of stealth fighters are different from previous fighters and have extremely high requirements for performance in all aspects. Even if the Jincheng Aircraft Design Institute has rich experience and strength, it is impossible to complete the manufacturing of the latest generation of stealth fighters and achieve their first flight in a short period of time.

Because of this, he was naturally excited when he suddenly heard the new news from Xu Chongxing.

After all, it was his proposal that prompted the launch of the domestic stealth fighter project, and he certainly hopes to see the real thing soon.

The Institute of Fluid Mechanics where Xu Chongxing works is located in the School of Engineering Mechanics, a little distance away from the School of Mathematical Sciences.

However, Xu Yuan was already familiar with the route, and soon arrived outside Xu Chongxing's office.

As soon as I raised my hand to knock on the door, I heard a familiar voice coming from inside.

"Come in quickly when you're here."

Xu Yuan was naturally not reserved when facing Xu Chongxing. The next second he pushed open the door and walked in.

Xu Chongxing was still dressed in his usual style. When he heard the noise, he raised his head and looked at Xu Yuan, then a bright smile suddenly appeared on his face.

Before Xu Yuan came closer, he joked, "Our Professor Xu is here."

When Xu Yuan heard the title, although there was nothing wrong with it, he felt a little awkward because of their teacher-student relationship, so he quickly took a few steps forward and responded with a smile.

"Professor Xu."

"You should call me by my name."

Seeing Xu Yuan's performance, Xu Chongxing did not continue to discuss this topic.

Then he stood up from his seat and pointed to the sofa next to him and said, "Sit down first."

Hearing this, Xu Yuan sat down.

Xu Chongxing called Xu Yuan over, even though it was because of something at the Jincheng Aircraft Design Institute, but he did not mention it immediately after sitting down.

His eyes fell on Xu Yuan in front of him. Perhaps he recalled the past, and he couldn't help but sigh with emotion.

After all, if we go back to four years ago, Xu Yuan was just an ordinary student in his eyes.

He was even dissatisfied because Xu Yuan was studying both mathematics and engineering.

Think this is too conceited.

As a result, just based on Xu Yuan's canard aerodynamic layout design, he immediately developed a talent for him, and even took Xu Yuan to Jincheng Aircraft Design Institute as soon as possible to ask Academician Song Wencong to study the plan personally.

As for the final situation, there is naturally no need to say more. This plan directly led to the latest generation of stealth fighter project.

Originally, he wanted Xu Yuan to give up mathematics and focus all his energy on engineering and strive to achieve excellence.

But Xu Yuan has proved with facts that even if he studies two or even multiple fields at the same time, he is still a genius among geniuses.

However, it was precisely because Xu Yuan did not give up mathematics that the country would have lost a mathematical master.

The most important thing is that Xu Yuan became a full professor in just a few years.

Although he is only a fourth-level full professor, he is still a little less qualified than him, a second-level full professor.

But it can already be described as horrifying.

His thoughts stayed here, and he stopped being silent and took the initiative to start a conversation.

"Speaking of which, you won the Gauss Prize at the Mathematician's Congress, and now you have become a professor in the Department of Mathematics. I haven't had the chance to formally congratulate you yet."

"It's also a good thing that you didn't give up mathematics before, otherwise it would really be a loss for our country."

Xu Yuan listened to everything Xu Chongxing said, and naturally felt the pride and pride expressed in it.

Without much hesitation, he replied with a smile: "As long as it is a subject I like, I will stick to it and do my best."

The voice just fell.

Then he took the initiative and asked Xu Chongxing directly about the Jincheng Aircraft Design Institute. It was obvious that he was impatient for the new news from there.

"Professor Xu."

"Is there any new progress on our latest generation of stealth fighter jets?"

Xu Chongxing was not surprised to hear this. After all, he had heard Xu Yuan's excitement on the phone just now.

Therefore, he no longer kept the secret and immediately told Xu Yuan about the Jincheng Aircraft Design Institute.

"In recent years, under the leadership of Academician Song, relying on the rich experience accumulated by Jincheng Aircraft Design Institute and the related technologies independently developed, the J-20 stealth fighter has taken shape."

"At present, the fuselage and power have been completed, but the fly-by-wire flight control system still needs to be optimized."

Xu Yuan listened to all this carefully and gained a more detailed understanding of the current situation of the stealth fighter project.

Due to the canard aerodynamic layout design of the winglets and lifting body, a more powerful flight control system is required in actual flight.

Only in this way can the performance of the canard layout be brought into play while ensuring the safety of the fighter.

It is normal for Jincheng Aircraft Design Institute to continue optimizing the fly-by-wire flight control system.

generally speaking.

The flight control system of a fighter jet consists of three parts: Signal system.

Hardware and software systems.

Auxiliary power system.

In order to develop a fighter jet with excellent performance, in addition to scientific aerodynamic layout, appearance and power, the fly-by-wire flight control system is extremely important.

But soon Xu Yuan suddenly remembered that Xu Chongxing had mentioned on the phone just now that Jincheng had invited him.

So he asked again: "Since the stealth fighter project is proceeding in an orderly manner, is there any problem in inviting me over at this time?" He was quite curious about this matter.

"Jincheng hopes that our latest generation of stealth fighter jets can complete their maiden flight next year."

"It can be considered a gift to the Olympics."

"That's why we thought of inviting talents in the fields of mathematics and computer science to help them optimize the flight control system." Xu Chongxing truthfully informed Xu Yuan of the relevant situation.

After hearing this, Xu Yuan basically understood what was going on.

As the world's fighter jets become more and more advanced, it is obviously inadequate to rely solely on the human brain to operate them.

If you want to play the best performance, you must use a computer.

The fly-by-wire flight control system is equivalent to arranging a computer to assist the pilot.

In this way, the pilot only needs to pull the stick and steer the rudder, and the flight control computer will be able to calculate the truly appropriate instructions based on the current situation of the aircraft and control the horizontal tail aerodynamic surface to make just the right deflection.

The key to enabling the flight control computer to achieve this level lies in the flight control system's software system.

Whether its control rules are reasonable.

It can be said that a set of control laws for a fly-by-wire aircraft is the flight dynamics design of the aircraft converted by the designer into a mathematical model state equation.

He was the aerodynamic layout designer of this project, and he had made great achievements in mathematics, so he was indeed suitable to participate in the design and optimization of the fly-by-wire flight control system.

And his level in the field of computers is also not low.

Just as he was thinking about this, Xu Chongxing's voice suddenly rang in his ears.

"correct."

"I heard that you also studied computer science, and your level is quite high?"

Xu Yuan didn't feel surprised that Xu Chongxing knew about this.

After all, he was invited by Yao Qizhi to participate in the machine learning algorithm project of the School of Computer Science and completed all the algorithms in a short period of time, and even used them in image restoration and recognition for urban surveillance.

With Yao Qizhi helping to promote it at school, it was normal for Xu Chongxing to know about it even though he was at the Institute of Fluid Mechanics.

Since Xu Chongxing took the initiative to bring up this matter, he naturally would not intentionally hide anything.

So he nodded and admitted: "It is true."

The hospital had already allocated him a separate discussion room, which was equipped with a computer.

It is completely reasonable for him to take time out of his daily routine to study computer.

When Xu Chongxing heard Xu Yuan's confirmation, he didn't know what to say.

Originally, he just thought that Xu Yuan was studying mathematics and mechanics at the same time, and was struggling with hash function algorithms. He didn't expect that he could still squeeze out time to study computers.

The key point is that Yao Qizhi gave a very high evaluation of Xu Yuan's computer skills.

This terrifying learning talent is truly enviable.

All I can say is that there is a reason why geniuses are called geniuses.

"You hid it really well, if I hadn't heard from Ji Yuan, I wouldn't have known you had so many talents."

"It's always good to have many skills." Xu Yuan said with a smile.

Xu Chongxing didn't say much about this matter, but then changed the subject and agreed.

"But this way, it will be easier for you to go to Jincheng to help."

But before Xu Yuan could speak, he suddenly thought of something and asked a question with some concern.

"You are currently working on a difficult mathematical problem, right? Will this affect your progress?"

"It won't have any impact." Xu Yuan shook his head and replied.

He has been studying the Goldbach conjecture for the past month, but there has been no progress on the progress bar.

In other words, his current thinking is still very deviated. In this case, locking himself in the office to continue research will not help in proving the Goldbach conjecture.

It might even have the opposite effect, this is the experience he has summed up in recent years.

Therefore, being invited to Jincheng to participate in the optimization of the fly-by-wire flight control system was just something that stimulated my divergent thinking.

"Then I feel relieved. You can come over anytime after you finish your work." Xu Chongxing nodded and breathed a sigh of relief.

Having finished explaining the whole story, Xu Yuan was just about to get up and leave, but for some unknown reason he turned around and asked one more question.

"Professor Xu, are you not going this time?"

Xu Chongxing spread his hands helplessly and said, "I have to deal with the selection of academicians of the Academy of Engineering recently, so I really can't leave."

When Xu Yuan heard this, his eyes suddenly lit up and he thought to himself that maybe he would soon have another mentor who was an academician of the Chinese Academy of Engineering.

(End of this chapter)