In the days that followed, Yan Jiecheng would meet with the leaders and experts of each school every day.

In fact, everyone came to explore the bottom and see if the ministry really wanted to engage in magnetic levitation technology.

Yan Jiecheng reassured everyone, if there is a big breakthrough in technology, the ministry will naturally adopt it, just let them put it better.

Yan Jiecheng also has some understanding of the magnetic levitation technology in later generations, and the reason why there is no large-scale promotion in later generations is mainly due to the high cost.

This maglev line is four or five times more expensive than the cost of ordinary high-speed rail.

Therefore, it can only be regarded as a technology accumulation in research.

On the 11th, the seminar on the technical research of maglev trains was officially held in the lecture hall of the Academic Association of the Academy of Railway Sciences.

Not only Yan Jiecheng and Lao Liu attended the meeting together, but also leaders of relevant departments such as the Science and Technology Commission and the School Department also attended the meeting.

More than 300 people attended the meeting, which was considered a very high level.

In addition to the heads of various universities and research institutes, the top experts in the industry are sitting below.

Yan Jiecheng personally presided over the meeting.

At the beginning of the meeting, Yan Jiecheng welcomed the leaders. Then it briefly introduces the current research progress of maglev train technology in various countries around the world.

These materials were collected and sorted out by the Academy of Railway Sciences during this time.

Then Yan Jiecheng talked about some advantages of maglev trains and possible future development directions.

Finally, Yan Jiecheng announced to everyone: "Comrades, because the maglev train has the advantages of speed, low consumption, environmental protection and safety, it has a very broad prospect.

Therefore, our country should also lay out the research of this technology.

My recent research has found that the theoretical speed of this maglev train is 400 to 500 km/h, and the superconducting maglev train can reach 500 to 600 km/h.

Its high speed gives it an advantage over flying distances between 1000 and 1500 km.

Due to factors such as no wheels and no friction, it consumes 50% less electricity than our current state-of-the-art high-speed trains.

At a speed of 500 km/h, the energy consumption per seat/km is only 1/3 to 1/2 of that of an airplane, which is also 38% less energy than a car.

What's more, the maglev train does not rub against the track when it is running, and the noise emitted is low.

Therefore, this technology is very important for rail transportation in our country.

This is also an important reason why the ministry has summoned everyone this time, and we cannot lag behind others in the layout of this cutting-edge technology.

Of course, in order to ensure the smooth progress of the research work.

The ministry has a special R&D fund, which is not less than 130 million yuan per year. ”

When Yan Jiecheng said this, he saw that the leaders of the various schools in the audience were all eager.

Then he said solemnly: "Of course, this fund is to be earmarked, if there is no progress after taking the money, don't think about applying for it in the second year."

The specific application method for this fund will be issued to your colleges and universities by our Academy of Railway Sciences. ”

Next, everyone began to discuss the technology of maglev trains.

The maglev train is mainly composed of three parts: the suspension system, the propulsion system and the guidance system.

Although it is possible to use a propulsion system that is not related to magnetic force, it is felt that all three functions should be done by magnetic force.

Lao Liu on the side didn't understand technology, and seeing that everyone was discussing in groups, he asked Yan Jiecheng with some curiosity: "Comrade Jiecheng, is there a difference in the way this train is suspended?" ”

He is really curious, this so-called magnetic levitation really subverts his cognition.

The train can still levitate.

Thinking about it is like dreaming.

Yan Xie Cheng saw that some of the leaders present were confused, so he explained with a smile: "There are generally three basic principles of this maglev.

The first principle is that when the magnetic field close to the metal changes, the electrons on the metal will move and an electric current will be generated.

The second principle is the magnetic effect of electric current.

When an electric current flows through a wire or a piece of metal, a magnetic field is generated.

The energized coil becomes a magnet.

The third principle of magnetic levitation is that magnets will interact with each other, and the same polarity will repel each other, and the opposite polarity will attract.

The maglev train we are talking about uses these three basic principles for research and development.

At present, in the world, the general R&D ideas are two ideas: normal conductive magnetic attraction and superconducting magnetic repulsion.

The so-called permeable magnetic attraction type is to use the perennial electromagnet installed on the bogies on both sides of the vehicle and the magnet laid on the line guide rail to make the vehicle float under the action of the magnetic field.

The gap between the vehicle and the rail surface is inversely proportional to the magnitude of the force of attraction.

This suspension mode does not need to set up a special landing support device and an auxiliary landing wheel, and the requirements for the control system can also be slightly lower.

There is also a superconducting repulsion type, in which a superconducting magnet is installed at the bottom of the vehicle and a series of toroids are laid on both sides of the track.

When the train is running, a current is passed on the upper line of the train, which generates a strong magnetic field.

The earth's coil tangent to it is opposite to the direction of the magnetic field of the superconducting magnet on the vehicle, and the two magnetic fields produce a repulsive force.

When the repulsive force is greater than the weight of the vehicle, the vehicle floats.

Therefore, this superconducting magnetic repulsion method uses the relative motion between the superconducting magnet placed on the vehicle and the passive coil laid on the track to generate a levitation force to lift the car body. ”

After Yan Jiecheng's introduction, several people also nodded one after another, as if they really understood.

However, this principle can be understood by ordinary people who have studied simple physics.

Except for Lao Liu, who used to learn to command battles, everyone else here is a high-level intellectual, so naturally they can understand it.

The experts in the audience are discussing the content of the meeting on the guidance method, the propulsion method, the train kinetic energy and so on.

In the morning, the meeting sorted out some technologies of maglev trains.

After a few quick lunches, the meeting began.

In the afternoon, we had some discussions on suspension mode, guidance mode, propulsion mode, train kinetic energy, track, vehicle, traction, operation control and other aspects.

It wasn't until seven o'clock in the evening that today's meeting ended.

Except for Yan Jiecheng, these leaders all went home separately, and these leaders and experts who came to the meeting basically lived in the guest house of the Academy of Railway Sciences.

So these people continued to discuss in the conference room of the guest house in the evening.

Anyway, there are many problems that need to be overcome, and they are not afraid of being robbed of the project by others.

Besides, everyone is good at different things, and when we talk about it, we can also inquire about each other, so as not to crash into the car.

After the meeting was adjourned, Yan Jiecheng did not leave.

In the office of the Academy of Railway Sciences, I am preparing to meet with the reporter of the Daily.

He needs to get some news out of the state media.

He specially reported this matter to the above, so the propaganda department asked the daily reporter to cooperate with him.

"Leader, the reporter from the daily newspaper has arrived, do you see?"

As soon as Yan Jiecheng arrived at the office and took a sip of water, Zhang Tonglai asked.

Yan Jiecheng put down the water glass and said, "Please let them in." ”

Zhang Tonglai heard this, nodded, and went out.

After a while, Zhang Tong came and arrived with three people.

A man in his early forties, a well-looking lesbian in his early twenties, and a young man in his twenties carrying a video camera.

As soon as the middle-aged man saw Yan Jiecheng, he hurriedly said, "Leader, I am Yu Wensheng from the Information Department of the Chinese News Agency. ”

Yan Jiecheng shook the other party's hand with a smile and said, "Thank you for your hard work, Director Yu." ”

Then, Yu Wensheng pointed to the female comrade next to him and said: "This is reporter Yang of the TV station, and this is Xiao Nian, a cameraman." ”

Seeing this, Yan Jiecheng smiled and nodded at the two of them.

He wasn't in the habit of shaking hands with pretty women.

This kind of intellectuality, as well as a natural glow, is the best at first glance, but you can't test yourself.

A big cadre like himself can't stand such a test.

After a few people sat down, Zhang Tonglai poured tea.

The three of them hurriedly thanked Director Zhang.

Then, Yan Jiecheng said: "This time, we need your cooperation to release a signal to the outside world. ”

Yan Xie Cheng saw that the three of them were calm, and he knew that the propaganda mouth had already explained to them.

So he continued: "Mainly, it's a report on the seminar we held a few days ago on the development of maglev trains.

The main thing is to give these three messages to the outside world.

The first is that our country began the research and development of maglev trains.

The second is that I, the chief engineer, believe that the levitation train is the future development direction of high-speed rail.

The third is that we are dissatisfied with the existing high-speed rail technology, especially Alstom's technology. ”

After Yan Jiecheng finished speaking, Zhang Tonglai hurriedly handed some information to Yu Wensheng.

Then he said: "Director Yu, this is some video of our meeting, all of which are not confidential, and you may be able to use them." ”

Zhang Tonglai, as he spoke, handed the two documents to Yu Wensheng and Reporter Yang, and said, "You can take a look at some of the materials we have compiled on this matter." ”

After that, several people discussed it for a while, and then did some interviews with Yan Jiecheng.

It mainly revolves around the problem that Yan Jiecheng said earlier.

It wasn't until an hour later that the work was over.

Lu Zhiping, who was waiting in the driver's lounge, received a notice from Zhang Tonglai, so he hurriedly went out to start the car and drove to the office building to wait.

This matter was arranged, and Yan Jiecheng was also ready to get off work, so he and Zhang Tonglai sent the three of them out.

When he arrived downstairs, Yan Xie Cheng saw that there was a car with a TV station logo painted on the side, and he knew that it belonged to the three of them.

Yu Wensheng and the three of them were also sincerely afraid when they saw a leader like Yan Jiecheng sending himself and others downstairs.

Yan Jiecheng said with a smile: "Don't get in the way, I'm off work too, so let's go downstairs with you." ”

Yan Jiecheng glanced at the other party's car, and then continued: "Okay, it's not early, you should go back early." ”

Yu Wensheng saw that Yan Jiecheng's special car had stopped under the office building, so he hurriedly said: "Leader, you go first, we are not in a hurry." ”

As for how Yu Wensheng knew that this was Yan Jiecheng's special car, it was actually not too simple.

After all, ordinary people are not qualified to sit on the big red flag of this year.

Besides, anyone who dares to park the car directly in the middle of the office building, except for the driver who is in the first place, really no one will do this.

Yan Xie Cheng saw that they were polite, and he also knew what these people were worried about.

He smiled and said, "Okay, then I'll leave first, and you guys should rest early." ”

After Yan Jiecheng finished speaking, the driver Lu Zhiping hurriedly opened the car door.

After Yan Jiecheng was done, Zhang Tonglai also specially told Lu Zhiping: "Brother Lu, drive the car steadily, the leader has not rested today, and he may squint on the road for a while." ”

Lu Zhiping nodded quickly when he heard this, indicating that he understood.

After Yan Jiecheng left, Yu Wensheng greeted Zhang Tonglai, and the three of them got into the car and left.

On the way, the Yang reporter looked at Yu Wensheng and said, "Director Yu, this leader is so young." It's not a few years older than me. ”

Yu Wensheng glanced at the other party and said in a deep voice: "Xiao Yang, this leader is not an ordinary person.

For the sake of the two of us who have known each other for many years, I would like to remind you.

You'd better put away your thoughts, or you won't know how you'll die when the time comes. ”

Yu Wensheng was also a little disdainful in his heart, he had known this Yang reporter for six or seven years.

Although I don't have to say anything about my work ability, I always want to climb high branches.

Now he is twenty-seven or eighteen, and he has not yet started a family, but he just wants to catch a golden beetle son-in-law.

This matter depends on the person, Yan Gong is what she can think about?

Yu Wensheng himself was also from the compound, and he had a clear understanding of the background of Yan Jiecheng's family.

If someone dared to break Chang Kexin's marriage, he didn't dare to imagine what would happen at that time.

When reporter Yang heard Yu Wensheng's warning, he couldn't help but be stunned.

She knows a little bit about her leader's background.

Seeing that the other party was so cautious, he was also a little curious.

Yu Wensheng saw her expression, and he didn't know what the other party was thinking, so he said directly: "Don't be curious, you can't say this, I don't dare to say it, you understand." ”

When Reporter Yang heard this, he also knew that this could not be done, so he nodded and did not speak.

In the next few days, a lot of issues were discussed.

After all, the development of maglev trains covers almost all industrial categories.

Like what special steel, wires and cables and other materials.

Integrated gate commutation thyristor, integrated circuit board and other components.

High-power converters, safety computers, controllers, suspension racks and other component levels.

The whole system and the whole chain industrial chain of operation control, wireless communication and other equipment also need to be slowly solved.

The independent development of key components of vehicles such as car bodies, sensors, and electromagnets and the whole vehicle requires the cooperation of universities and research institutes across the country.

The development of prototypes of the whole system of traction power supply, such as traction transformer and converter, control, switch station, and long stator linear motor, requires the participation of the Faculty in research.

In addition, the development of complete sets of engineering equipment for operation control and communication, such as central subsystems, zonal control and vehicle-to-ground communication, requires the joint efforts of all computer institutes across the country.

All the line tracks of different structures, new track beams, turnouts, functional parts, etc., are enough for the research institutes in these ministries.

As the discussion deepened, the more things we found needed to be researched from scratch.

The week's meeting was finally over, and the heads of these units immediately went back.

began to prepare for the application for the project work, after all, for this work, the ministry only has more than 100 million yuan a year, so many units are staring at it, and it is estimated that they can't even drink soup if they are slow.

The news that Yan Jiecheng wanted in the newspapers and on TV had also been broadcast.

Within a few days, the work on Alstom's technology reception went a lot smoother.

Yan Jiecheng didn't expect that even Xiaori sent a special letter, wanting to cooperate in the field of maglev trains.

To put it simply, they provide funding for Huaxia research, and the two sides share the results of research.

For this matter, Yan Jiecheng was very entangled.

It can only be said that it is too difficult.

On the one hand, Yan Jiecheng wants other people's funds, and on the other hand, he doesn't want to share the results.

In this matter, Yan Jiecheng knew that he had to have a choice.

It's not impossible to cooperate, but the details need to be communicated.

You must know that the maglev train technology of today's small days is also one of the best in the world.

Huaxia cooperates with it, and it is very likely that the domestic technical route will follow the footsteps of the small day, and it will never be able to get out of the small day technology trap.

This kind of thing is what Yan Jiecheng is most worried about.

You know, the little days of this year are really strong.

This year, they surpassed Maozi economically and became the second economic power after Eagle Sauce.

The Plaza Accord has not yet been signed, the yen has not appreciated significantly, and the products of the small day are sold all over the world.

The self-esteem of the nation was greatly satisfied throughout the small days.

The society is also very stable, the materials are abundant, and the environment has returned to cleanliness after excessive pollution.

It can be said that it is the golden age of small days.

Therefore, in the face of such a small day, Yan Jiecheng had to be cautious.

Yan Jiecheng had no choice but to politely refuse the matter.

In recent years, the country that the country has dealt with the most internationally is actually a small day.

Everyone has 10,000 eyes in their hearts when dealing with Xiaori.

After all, who would know that these countries have basically no integrity, and the moral bottom line is almost zero.

So I'm afraid of being pitted.

(End of chapter)