The Red Era, the Opening University Speech

Chapter 464: The Founder of the Anti-Tank D-Bomb Field

Came to the Automotive Research Institute.

After saying hello to the guard at the door.

Li Mu walked into the gate.

But he was in no hurry to go up.

Instead, go to the canteen to solve the stomach problem first.

Finish the meal.

Just about to find a place to sit down.

Suddenly he heard someone calling him:

"Advisor Li, this way!"

Turned his head.

It’s the director Ma Zhihao.

Sitting next to him were Yang Ying, Zhang Kemao, Wang Zerong and others.

"Director, Professor Yang, you guys are just having dinner!" Li Mu walked forward and said.

Hearing this, Ma Zhihao smiled and said:

"It's Old Yang. He has been dragging his feet and refusing to come over for dinner, so I have to go and call him myself."

"What do you mean by delay? It's only half an hour late!" Yang Ying on the side spoke up for himself.

Ma Zhihao said earnestly:

"No matter how long it takes today, will it take an hour tomorrow? Will it become two hours the day after tomorrow?"

"No matter what happens now, I don't know what will happen in the future."

"The research progress is already very good. There is no need to research at the expense of one's health."

The development progress of Xuanwu-1 is indeed very smooth.

Occasionally there are problems.

Either they can solve it.

If the problem cannot be solved, Li Mu will solve it.

In this situation, it is more important to stay calm and steady than to stay up late every day and speed up a little.

"Director Ma is right, Professor Yang, if you fall ill, there will be no one to lead the team." Li Mu also said with a smile.

As for the Xuanwu-1 main battle heavy tank, only Yang Ying can make him feel at ease.

Done.

I’m worried that Yang Ying still doesn’t take it seriously.

He continued:

"And if you don't take care of your health, I'll have to find someone else if I have any ideas for researching new tanks in the future."

For a scientific researcher, especially a scientific researcher from Xia Country in this era.

there is nothing.

It can be more important than a research project.

If there is, it must be a research project with more advanced technology.

"Since you said so, I must pay attention." Yang Ying nodded helplessly.

New tank research project.

This kind of temptation was something he absolutely could not refuse.

But then.

He suddenly reacted and asked:

"Do you already have a research direction for the Xuanwu-1 main battle heavy tank?"

The voice just fell.

Ma Zhihao and others who were sitting nearby immediately cast curious glances.

After all, scientific research is always based on theory.

The product may not necessarily be produced, but the theory can be established first.

Li Mu smiled and said:

"It's just a small idea, it's not mature yet. Let's focus on the Xuanwu-1 main battle heavy tank first."

After the Type 99 tank, there are certainly better tanks.

But that's how he saw it.

At present, as long as Xia State builds the Xuanwu-1 main battle heavy tank, it will not have to consider replacing it within 20 years.

"Just tell us a little bit." Yang Ying couldn't help but say.

Others also pleaded for mercy.

It would be better if we didn't talk about this.

He started talking but didn't continue. Everyone felt like a cat was scratching their heart.

Seeing this, Li Mu had no choice but to say:

"Let's talk about three key areas: informatization, stealth technology, automation and intelligence."

"The first is informatization, which enables it to share information with other combat units in real time and conduct coordinated operations."

"Then there is stealth technology, which uses stealth design to reduce the probability of being detected by radar and infrared detectors..."

He gave a brief introduction of the situation.

In fact, to put it bluntly, it is a 4th generation tank.

However, even in later generations, the technology of the 4th generation tanks is still not mature.

Xiaguo only has third-generation improved tanks such as ZTZ-99A, which have similar performance.

There are some abroad, such as Big Brother's T-14 Armata, Sande's KF51 Panther, M Emperor's M1A3 Abrams, etc.

However, although these are slightly stronger than those of Xia State, they are only closest to the standards of fourth-generation tanks and are still some distance away from truly reaching them.

……

After listening to Li Mu’s explanation.

Yang Ying and others soon understood.

With Xia Country’s current technological and manufacturing level.

It is basically impossible to realize Li Mu’s idea.

"I'd better just focus on developing Xuanwu-1. As for what you mentioned, I'll do as much as I can. If I can't do it, I'll just have to rely on them." Yang Ying said.

As he spoke, he looked at Zhang Kemao and Wang Zerong standing beside him with a smile in his eyes.

These two people are really talented.

Since joining the development team of the Xuanwu-1 main battle heavy tank, he has been standing out in meetings.

The research team that I am responsible for later is also the one that has made the fastest progress.

Given time and with proper training, his achievements will definitely far surpass his.

Following Yang Ying's gaze.

Li Mu also looked at Zhang Kemao and Wang Zerong and said with a smile:

"As for scientific research, we have to climb up by standing on the shoulders of giants, and the torch will be passed down forever."

……

Chat room.

Everyone finished their meal quickly.

Yang Ying didn't delay either.

He immediately took Li Mu and went to the laboratory.

As he walked, he reported on the development of the engine and said:
"For the 60-degree angle design you mentioned, we focused on overcoming the difficulties in structural design, mechanical balance, thermal management and manufacturing process."

“The 60-degree angle design requires the crankshaft to bear complex multiple forces, which is prone to vibration and stress concentration.”

"For this reason, we adopted a cross-plane crankshaft design to optimize the crankpin phase angle and balance the inertial force. We also added a balance shaft to offset the second-order motion..."

After listening to him.

Li Mu nodded and agreed:

“Overall it’s pretty good, but the 60-degree angle requires 12 cylinders to be arranged in a limited space.”

“It also has to accommodate the intake and exhaust manifolds, turbochargers and other components.”

"In addition to adopting a compact cylinder block design, optimizing cylinder spacing and wall thickness, integrated intake and exhaust manifolds can also be used to reduce space occupancy."

He pointed out a problem that many people had overlooked.

But this was not their fault.

When only the general direction is given.

It is not surprising that there are flaws in the research conducted by Yang Ying and others.

Except for the current problem.

They will also encounter problems with thermal deformation of the cylinder block and cylinder head, thermal load problems of the turbocharging system, crankshaft processing problems, and so on.

After he finishes speaking.

Yang Ying and others first took paper and pen and took notes for a long time.

Then he continued:

"What about the casting problem of the cylinder block and cylinder head? Their molds are quite complicated and are prone to keyholes and cracks."

"Using low-pressure casting or sand casting methods can provide some improvements. We can also optimize the mold and cooling process, etc." Li Mu replied.

The casting of cylinder block and cylinder head is the core component of the engine.

As the "skeleton", it supports and fixes all major components.

If there is a problem in this aspect, no matter how well the other parts are made, it will fall apart once it is started.

Or there could be a problem with the heat dissipation and the machine would break down after a short while.

It's okay to break down on a test site, but it would be a big problem if it breaks down on a battlefield.

Thinking of this, Li Mu added:

"We can also try to design a cooling channel based on the shape of the component to improve heat dissipation efficiency and reduce thermal deformation."

Having said this, he paused slightly.

The accompanying cooling water channels require 3D printer technology, and it is a bit too early to bring it up now.

Fortunately, it can still be completed without using traditional techniques, so there is no need to worry.

Just the moment he stopped.

Zhang Kemao and Wang Zerong asked one after another:
"Consultant Li, why can it improve heat dissipation efficiency and reduce thermal deformation?"

Hear his question.

Li Mu said:
"Unlike traditional straight water channels, the cooling path fits the shape of the component, eliminating the 'blind spot' between the traditional straight water channel and the heat source. This is one of the reasons."

"There is also a complex branch network design that allows the coolant to evenly cover the surface of the component to avoid local overheating."

"The curved and twisted design also increases the turbulence of the coolant, breaking the laminar boundary layer, thereby improving the heat exchange efficiency..."

He analyzed the principles in detail with everyone.

In addition to the reasons mentioned above that can improve heat dissipation efficiency.

There is also a theoretical basis for reducing thermal deformation.

Traditional straight water channels will cause large differences in cooling speed in different areas of the component, with faster cooling near the water channel and slower cooling speed far from the water channel.

The high temperature gradient formed in this case can reach a temperature difference of more than 100 degrees Celsius.

The accompanying cooling water channel controls the temperature difference within 20 degrees Celsius by evenly covering it, reducing the generation of thermal stress.

In addition, hot spots are eliminated and heat distribution is balanced, both of which can reduce the degree of thermal deformation to an ideal value.

……

From the cafeteria to the laboratory.

Li Mu basically analyzed all the questions given by everyone.

And gave corresponding solutions.

During this process, he explained more patiently than before.

So that everyone can fully understand.

After all, the problems encountered with the shore sonar array system also alerted him.

It is indeed a good thing to let young researchers think and research independently.

But the issue of training cannot be ignored.

……

Another hour of discussion followed on the thermal load of the engine's turbocharger system and the efficiency of the system.

Li Mu said goodbye to Yang Ying and others and walked out of the laboratory.

Afterwards, he continued to the equipment development team where Zhang Shushun was.

Come outside the laboratory.

Unusually, he saw no one.

Upon asking, I found out that Zhang Shushun and his technical team had gone to the machinery factory to work on the manufacturing issues of the fin-stabilized discarding sabot armor-piercing projectile.

After all, the Automotive Research Institute has the equipment.

But there is a lack of guidance from experienced masters.

He looked at the young man in front of him and said:
"So, the development of the fin-stabilized armor-piercing discarding sabot projectile is progressing very well now?"

"Yes, Professor Zhang is very good. But he often says that it is thanks to your guidance that we can have the current progress." The young man said excitedly.

This is Consultant Li Mu!
He has just been at the Institute of Automotive Engineering for a few days.

This is the first time I’ve seen it.

Thinking of this, he said quickly:
"Li, Consultant Li, my name is Zhao Jiazheng, and I was transferred from the Military Engineering College."

"Do you know the latest development of the artillery-launched D-bomb?" Li Mu thought for a moment and asked.

It's rare for him to come here. He should at least listen to the progress.

Of course, you can also ask Ma Zhihao and Song Kun these questions.

However, he suddenly had the idea to test the young man in front of him.

Zhao Jiazheng calmed down his excitement and said:
"Then you've asked the right person. I'm from the D-bomb group."

"We are currently completing the theoretical exploration stage and are working on the three key technologies you proposed."

"But at the first stage, we encountered obstacles and were unable to achieve high-G launch technology."

He felt a little ashamed at the end of his speech.

After all, compared with the development team of the fin-stabilized discarding sabot armor-piercing projectile.

The progress on their side is far behind.

"Don't be disappointed, this is not your problem." Li Mu comforted her, and then said: But I want to hear your thoughts, how about it, can you tell me?"

Hear this.

Zhao Jiazheng was stunned at first, then showed a look of joy.

But soon, his brows were twisted again and wrinkled into a ball.

After all, it would be too embarrassing if you didn't say it well.

And he embarrassed himself in front of the role model he admired.

Li Mu knew what he was thinking without even looking. He was just afraid of saying the wrong thing.

He smiled and said:
"It doesn't matter if you say something wrong, just speak your mind."

Hearing this, Zhao Jiazheng hesitated for a long time.

Then he slowly said:

"The difficulty of high-overload launch technology is mainly concentrated in the moment of D-bullet launch, which needs to withstand extremely high acceleration."

"Generally speaking, this speed can reach tens of thousands of times the acceleration of gravity, that is, tens of thousands of g."

"This also places extremely high demands on the structure, materials, electronic devices, and guidance system of the D-bomb..."

He first analyzed the crux of the problem.

By the way, take advantage of this time to sort out your thoughts.

After all, it is hard not to feel pressured when facing Li Mu.

"Well said. It seems you have put a lot of effort into it!" Li Mu affirmed him with a smile.

These contents are basic.

But not everyone can remember it so clearly and can say it at any time.

"Thank you, Consultant Li." Zhao Jiazheng scratched his head embarrassedly.

Got recognition.

His courage did grow a lot, and he continued:
“Then there are the problems we encounter, first, the structural strength and material issues.”

"At the moment of launch, the D-bullet will be subjected to a huge impact force, which may cause structural deformation or damage."

"The second is the overload resistance of electronic devices. Under extremely high overload, the electronic devices inside the D-bomb are prone to failure..."

There are seven problems encountered when firing D bullets:
Structural strength and materials, overload resistance of electronic devices, stability of guidance systems, reliability of engines and propulsion systems, safety of warheads, launch dynamics and trajectory control, testing and verification.

Solving these difficulties requires multidisciplinary collaboration.

It would be very difficult to solve the problem relying solely on the equipment development team led by Zhang Shushun.

"In terms of structural strength and material issues, I think we can continue to optimize the missile body design and verify the structure's overload resistance through simulation and testing. We can also reinforce the design of key components," Zhao Jiazheng said finally.

This answer is also the result he came to after thinking hard for some time.

I haven't had time to report to Zhang Shushun yet.

So even now that I say this, I still feel very nervous.

Li Mu nodded and said:
“The idea is good. By adopting streamlined design, modular design and strengthening key parts, the structural strength can be effectively improved.”

"The idea of ​​reinforcement is also very good. Add an annular reinforcement structure to the outside of the missile body and increase the thickness of the skin at key parts of the missile body."

"Even wrapping the missile body with carbon fiber or glass fiber composite materials can enhance the overall strength. But I also suggest that you think deeply about dynamic optimization."

After he finished speaking, he couldn't help but sigh in his heart.

——The young man in front of me is worthy of being the founder of Xia Country’s anti-tank D-bomb field.

Zhao Jiazheng, an expert in ordnance materials and artillery design, is the deputy chief designer of Xia Guo’s first-generation anti-tank D-projectile project.

In terms of talent and ability, he is impeccable.

"You, you're too kind!" Zhao Jiazheng was a little dazed.

He just gave an idea for a solution.

It is not clear yet and the feasibility is still under discussion.

As a result, Li Mu directly derived a lot of solutions.

And every one of them is highly feasible.

"As expected of Consultant Li Mu!" Zhao Jiazheng said with deep emotion in his heart.

If you don't think about it in advance.

The gap in strength between him and Li Mu.

I'm afraid it has grown to an unbelievable level.

Looking at Zhao Jiazheng's expression, Li Mu knew what he was thinking and said with a smile:

"These are all what I thought of in advance, but they are not perfect yet. You can write them down and discuss them with Professor Zhang and others later."

"Oh, oh, okay!" Zhao Jiazheng reacted immediately.

He quickly took out a pen and paper and began to take notes.

Fortunately, Li Mu had just finished speaking and he still remembered about 80% of it, so he didn't embarrass himself at this time.

But even so.

When he was unsure, he would still ask Li Mu.

After all, it’s better than losing face because you can’t remember clearly.

He was more afraid of affecting subsequent research.

……

Li Mu was not in a hurry and continued to analyze the problem patiently.

Sometimes Zhao Jiazheng couldn't remember everything at once.

He would also stop and wait for the other person.

After all, since we plan to train him.

Naturally, it takes more thought.

If all goes well, we will move on to artillery design.

He could then let Zhao Jiazheng do it.

In this way, the pressure on him can be relieved a lot.

Of course, he was not trying to liberate himself.

I just want to save more time to study what other countries need.

……

After resolving the issues of structural strength and materials.

Li Mu then talked about the overload resistance of electronic devices.

The solution is also very simple.

That is to design an electronic component specifically for military use.

That is, military-grade electronic components.

Different from ordinary electronic components.

In terms of design and manufacturing standards, materials and packaging, performance parameters, testing and screening, cost and supply.

There are significant differences between the two.

The former has the characteristics of high reliability, resistance to harsh environments, strict quality control, high-quality materials and packaging, high performance parameters, high cost and long supply cycle.

And want to do this.

The first step is to adopt redundant design and fault tolerance design.

In this way, the system can still operate normally when some components fail.

Then use the components’ operating parameters, such as voltage, current, and power, below their maximum ratings.

This is also called derating.

Completing these three points can effectively improve the reliability of electronic components.

……

It took about 30 minutes.

Li Mu briefly explained the technical difficulties in the development of the artillery-launched D missile.

Of course, even with these.

It may not be possible to produce the artillery-launched D bullet smoothly.

After all, scientific research requires not only theory but also practice.

In the actual development process, various other problems will still arise.

However, this is also a good way to train Zhao Jiazheng.

……

After saying that.

Li Mu waited for a while.

He watched Zhao Jiazheng write down everything he said in his notebook.

Then he said softly:

"Check it carefully. If you have any questions, you can ask me."

"No, no need. You speak slowly. I have already written down everything." Zhao Jiazheng said quickly.

As he spoke, he wiped the sweat from his forehead.

Apparently, he wasn't as relaxed as he said.

Hearing this, Li Mu did not insist and nodded:

"Well, I have something else to do, so I'll leave first."

"The content just now can serve as a preliminary research plan for your weapons development team to launch D-projectiles."

"If you have any questions, I'll come back in a few days and you can raise them then."

After finishing speaking.

He patted Zhao Jiazheng on the shoulder.

After giving a few simple words of encouragement, he turned and left.

Zhao Jiazheng was left standing in the corridor with a dazed look on his face, staring at his departing back and the notebook in his hand in a daze from time to time.

Because I had just been transferred here, I missed the opportunity to go to the factory with Zhang Shushun and others.

He was still very upset.

Even strongly requested to go along.

Now it seems that it’s a good thing that Zhang Shushun didn’t agree at that time.

Otherwise, he would have missed the opportunity to communicate closely with Li Mu and receive guidance.

This kind of opportunity.

There are probably not many people in the entire Xia Kingdom who have it. He is so honored.

Think of this.

Zhao Jiazheng said secretly in his heart:
"Advisor Li, don't worry, I will never let you down!"

……

Here.

After leaving the Institute of Automotive Engineering.

Li Mu continued to go to the Semiconductor Research Institute.

Just got to the door.

Before I got off the car, I saw an acquaintance outside the gate.

——Hu Xuhua.

I saw him shivering in the cold wind wearing a cotton coat.

Li Mu quickly asked Guan Jianmin to drive the car over, then opened the door and said:

"Professor Hu, come in first."

"Consultant Li?" When Hu Xuhua saw the car, he subconsciously took a few steps back.

After hearing the sound clearly, he hurriedly got into the car.

Li Mu continued:
"Professor Hu, why are you here? You're still standing outside the Semiconductor Research Institute."

"Hey, there's no other way. I can't get in without a letter of introduction, so I can only wait for you outside. Fortunately, I'm wearing warm clothes." Hu Xuhua laughed heartily.

Hearing this, Li Mu was speechless:

"Even if you don't have a letter of introduction, you can just tell the Chinese Academy of Sciences and meet outside."

"It won't work. I came here secretly this time." Hu Xuhua continued.

Hearing this, Li Mu raised his eyebrows slightly and asked in confusion:
"secretly?"

This word is used very cleverly.

Hu Xuhua explained helplessly:
"Well, ever since you left, we've been discussing whether we could come over."

"After all, the development of the submarine-launched D missile would not have been possible without you."

"I led the team to study your plan for half a month, but there was little progress, so I took advantage of my vacation to talk to the factory manager, and then..."

(End of this chapter)