Rule department scholar

Yang Cong made a brief comment, then sat on the table, picked up the rice and quickly took a few mouthfuls, and continued to add without caring about the image, "And what you said, it's very beautiful!"

"Yes!" Liu Jiankun exclaimed.

Such a technologically-sounding design scheme is amazing just by looking at its appearance, but it still depends on what professional people say.

Yang Cong said while eating, "I haven't read all of them, but I have read them roughly. What impresses me the most is that there are many automatic control parts in the design."

"Those parts that change the state of mind according to the state of the aircraft, including wings, tails, etc., are basically fine in theory. In fact, there is no need to question this aspect. Academician Zhao is an expert in mathematics."

Liu Jiankun nodded seriously.

Zhao Yi is world-recognized as NO.1 in mathematics. There is no need to question the calculation part at all, and he is not just a mathematician. The design of the WZ series engine is enough to prove that he is also the top in terms of dynamics and mechanical physics. .

"I think, just looking at the design of the exterior part, even if the F-35 is used for comparison, it may not be comparable."

Yang Cong made a comparison with admiration.

"So powerful?" Liu Jiankun was surprised, "Better than F-35?"

"From what we know so far, this design is going to surpass the F-35, at least in theory, but there is one thing..."

Yang Cong said seriously, "I found the biggest problem in the design. If this problem is not solved, this design may have to be shelved in the database, and it will be used after ten or ten years."

"what is the problem?"

Liu Jiankun became more serious and serious. Yang Cong is the top aircraft designer in China. He said that he found a major problem, which may be real.

Zhao Yi is really good at research and development, but he is not a professional aircraft designer after all, and maybe there will be something in the design that he didn't notice, which will affect the entire design problem.

Yang Cong swallowed what was in his mouth, and went over to make a cup of tea in an unhurried manner, obviously trying to show off, he kept smiling, feeling like he was about to reveal an 'important secret'.

Liu Jiankun was not in a hurry, and went over to help serve tea and introduce Yang Cong the top Maojian here.

at last.

The two returned to their seats.

Yang Cong picked up the teacup and took a sip, then said with a smile, "There is a problem with the overall control!"

"There are many automatically controlled parts in this design, which are very unique in design, but if they are allowed to change directions independently, it will be difficult to achieve overall coordination."

"For example, when the aircraft turns from a dive to a rapid pull-up, the folded wings will be unfolded at an angle of about [-], but the flaps will not be deployed quickly, and the automatic movement of the tail will also drag the power of the upward dive. In this case, A lot of auto-changing parts will become a drag, and maybe they are not as good as ordinary designs..."

"So if you want this design to have the desired effect, you must have an intelligent main control system!"

"this is a must!"

"But as far as I know, even the electronic control system of the world's top fighter jets cannot achieve coordinated and flexible control of so many components, which involves very complicated calculations, while domestic..."

"Balabala~~~"

Yang Cong talked a lot continuously, showing off his knowledge by the way. After a while, he realized that there was something wrong with Liu Jiankun's expression. He stopped talking and asked, "Mr. Liu?"

"Cough, cough~"

Liu Jiankun suppressed the smile on the corner of his mouth, walked to the sofa and took out a document and handed it over, "Is this what you're talking about?"

Yang Cong took the document and glanced at the title, "Intelligent control system?"

He opened and turned two pages, his expression froze completely, feeling the embarrassment of 'community death', he raised his head to look at Liu Jiankun, and said with a stiff smile, "So... Academician Zhao has already thought of it."

"Ha, ha, ha~~"

the other side.

After Zhao Yi submitted the design acceptance application report, he waited for news with peace of mind.

He is very busy.

The design work of Warhawk-1 is completed, and the next step is to wait for the design acceptance to confirm that the WZ-A1 engine is aimed at Warhawk-1, and then to manufacture the engine prototype. The engine must be made first, and then the fighter test machine can be started.

The engine prototype work can give Hongfeng Industry a boost. He has cooperated with Hongfeng Industry, and the prototype manufacturing has been given the green light all the way, but because it has not been officially approved by the superior, it can only design the mold internally and formulate the plan for manufacturing parts.

These are all things that can be done in advance.

When it comes to Hongfeng Industry, we must also pay attention to the research and development of the spindle with Hongfeng Industry.

Hongfeng Industry sent a lot of information.

Zhao Yi took the time to look at the technical materials related to industrial spindle manufacturing. The content of the materials is very large, including not only the spindle manufacturing technology mastered by Hongfeng Industry, but also related materials and parameters of various spindles, machine tools, precision work, etc. wait.

If you want to do R&D and design related to the spindle, you must have an understanding of these.

One advantage of looking at manufacturing technology is that there is no obscure theoretical content. For Zhao Yi, technical information is not much different from reading philosophy and economics. Just look at design, materials, parameters, etc., and you can almost remember it completely after reading it carefully. You don't have to do serious calculations, thinking, and the like.

So he read the information very quickly. It took him more than a week to get a general understanding of the industrial spindle technology and Hongfeng Industry's research and development of the spindle.

Industrial spindles and machine tool spindles include many types. The most common ones are belt-type spindles, gear-type spindles, direct-coupled spindles and electric spindles.

Belt-type spindles on the market are widely used, ranging from small to large-scale machining centers. The speed of belt-type spindles will not exceed 8000. The assembly is relatively easy, and the vibration is much smaller than that of the gear type. The disadvantage is that the faster the speed, the greater the noise. And the belt tension is difficult to control.

Many large and medium-sized CNC machine tools adopt the gear-type spindle speed change method. The output torque is expanded through a few pairs of gears to reduce the speed to meet the requirements of the output torque characteristics at low speeds of the spindle. It is more powerful than the belt-type spindle. But the shortcomings are also obvious, the noise and vibration are very large.

The main advantage is that it is powerful, and the disadvantage is that the noise and vibration are large.

The direct-coupled spindle is mainly used to process small parts. The faster the speed, the smaller the cutting force. It is widely used in industry and has many advantages. For example, the speed is much faster than that of the belt type, but the correction of the direct-coupled spindle is very high. requirements.

Hongfeng Industry has production and research and development of several kinds of spindles, and also has a certain market share in China, but their main spindle technology research and development are all placed on the latest electric spindles.

The electric spindle is the latest type of spindle. The spindle speed is very high and can reach 50000 rpm. The built-in motor spindle transmission structure greatly simplifies the structure of the spindle box and the spindle, and effectively improves the rigidity of the spindle components. There are many large-scale machine tools in the world, including ultra-high-precision machining. High-end CNC machine tools use fast, easy-to-control electric spindles.

The main technical difficulty of the electric spindle is to eliminate its shortcomings, such as the sealing and precision of the spindle, and the fast speed of the spindle will bring more wear and tear. Only by ensuring ultra-high sealing can the possibility of damage be reduced , and precision is the key among the keys. Only when the precision reaches a certain level can it be used on machine tools for processing fine parts.

"So the focus of research and development should be on the electric spindle. Hongfeng Industry mainly develops electric spindles, but the electric spindles they produce can't even be used by domestic self-developed machine tools..."

Zhao Yi sighed and shook his head.

It can be seen from this that there is a gap between the domestic high-end manufacturing industry and the international one. Most of the machine tools used by top domestic manufacturing companies are imported from abroad, and the purchase of the top industrial machine tools is restricted.

Machine tools developed and produced domestically cannot be used in the top high-end manufacturing industries.

For example, the production of electronic chips that most require precision.

This is the field of ultra-high-precision machining, which is completely monopolized by foreign companies. Spindle technology does not represent machine tools, but is an indispensable core component of machine tools.

"With the electric spindle manufacturing technology mastered by Hongfeng Industry, it is estimated that there are still two, three, or even more generations behind the manufacture of the world's highest-precision electric spindles?"

Zhao Yi is a little uncertain, but he can't wait to start research and development. He not only hopes to help the development of domestic high-end manufacturing technology, but also wants to try the effect of "Derivative Rate".

When he really experimented with the effect of "Derivation Rate", he discovered a problem. The main shaft is much simpler than the engine, but it also includes several parts. He found that the "Derivation Rate" cannot be used as a whole, only one part and one part. Come.

then……

[Using "Derivation Rate" will consume 68 points of learning currency, do you want to use it? 】

Zhao Yi was a little confused when he saw the system prompt. The effect of "Derivation Rate" seems to be very good, but the learning currency consumed is also amazing.

Calculated in this way, to upgrade Hongfeng Industrial's electric spindle technology by one generation, it will cost hundreds or thousands of learning coins?

"It seems to be a bit of a loss..."

The "loss" that Zhao Yi mentioned refers to learning coins, because even if the next generation of electric spindle technology is developed, thousands of learning coins may not be obtained.

According to past experience, it should be [-] or [-] learning coins, which is a bit of a loss. Unless the electric spindle technology of Hongfeng Industry can reach the international level by leaps and bounds, it will cause heated discussions in public opinion. Harvest more learning coins.

Of course, even if it is a "loss" of learning coins, research and development must be done.

Zhao Yi still reluctantly used "Derivation Rate", and immediately got the internal hollow body structure technology in the next generation design of the electric spindle, and knew how to design the hollow body structure.

Obviously.

This is only part of the spindle design, and it does not bring learning currency rewards.

Looking at the empty learning coins again, Zhao Yi thought with a sigh, "I still have to rely on the aircraft design side, and I don't know what the aviation group will gain to complete the design acceptance work!"

"Their productivity is too slow!"

"It's been almost two weeks, and there is no news at all!"

Chapter 467 What if the Fields winner doesn't come?

Liu Jiankun, it's hard!

The submission and acceptance of the Warhawk-1 design was too sudden, and the aviation group was completely unprepared for it.

Liu Jiankun had to temporarily organize an acceptance expert group to conduct an overall argument on the top and bottom of the report, because it was a thesis on the design of the fifth-generation machine, and each part required detailed calculations, and some parts still needed to be understood. find a way.

It's like answering a question that you don't understand at all, and the experts in the acceptance team need to spend a lot of brain cells to do it.

For a large-scale aviation group, it is not too difficult to temporarily organize an acceptance expert group. At worst, they can find personnel from the research institutions below.

There are more than 30 research institutions under the aviation group, and each institution can be said to be full of talents. There are six academicians who can participate in the work alone, covering all parts of aircraft design, and even the incidental aviation-related research and development. The research institute is responsible, and each research institute is responsible for the relevant part of the acceptance, which is enough to solve the problem of design acceptance.

Liu Jiankun is stumped by the 'intelligent control system', which is classified as electronic equipment.

Aviation Group has Flight Automatic Control Research Institute and Aeronautical Computer Technology Research Institute, both of which have sent top researchers, but after reading the contents of the 'Intelligent Control System', they all said that they could not complete the calculation in a short time.

Because the algorithm is too difficult!

They are specialized in the research of avionics equipment, and there are many talents related to computer algorithms, but talents are just talents, and it does not mean that they are top algorithm experts.

Their suggestion is, "You must find the top algorithm engineer."

"The top level I'm talking about is not the ordinary top level, but the kind of mathematics and computer skills that can reach world-class experts. It is best to specialize in mathematics and algorithm research."

"We don't have this kind of talent!"

of course not.

At the same time, he is a mathematician and a computer expert. If he concentrates on studying mathematics and computer algorithms, he is completely doing theoretical research. It is unlikely that he will work in a research institute under the Aviation Group.

This kind of talent can't show their abilities at all in the research institutes under the Aviation Group. Talents who specialize in theoretical research work still have to be found in the Academy of Sciences and major universities.

Liu Jiankun immediately thought of a place, "The software institute of the Academy of Sciences? The information and calculation center?"

"Academician Zhao, you really gave me a difficult problem!"

Liu Jiankun wanted Zhao Yi to come and explain directly, but the researchers must not be able to participate in the design acceptance. Let Zhao Yi, who is the designer, come and explain, and why organize an expert group for acceptance?Just pass it directly, and he doesn't care about the principles of design and the like.

So I still have to find the Academy of Sciences.

The aviation group also has relevant personnel in the Academy of Sciences, but they are all departments that have cooperation. The software institute and the information and calculation center have no connection at all.

This is tantamount to finding someone outside the group.

Although the aviation group is a very important domestic aviation industry group, the domestic scientific research institutions and group companies are not family members. Even if they are really family members, the researchers at the bottom don't think so. What about adding jobs that have nothing to do with R&D?

Liu Jiankun had no choice but to communicate with the person in charge of the Software Institute and Information Center of the Academy of Sciences, and even took a plane to go there in person, and talked face-to-face before finally negotiating the acceptance work.

The Software Institute of the Academy of Sciences agreed to send an academician to lead a team to the Aviation Group to assist in the acceptance of the 'intelligent control system'.

This academician is Liu Hemin.

Liu Hemin was a new academician last year, and he was a bit elated to be an academician. Recently, his research on evolutionary algorithms has achieved phased results, and he is still in a very good mood.

When he heard the acceptance work of the aviation group supported by the software, he inquired a little and then hurried away, because the name of 'Zhao Yi' was involved.

Liu Hemin is very confident in his professional level. He is a top expert in mathematics and computer, but he still dare not compare with Zhao Yi.

The 'intelligent control system' designed by Zhao Yi made the aviation group helpless and had to seek help from the Software Institute of the Academy of Sciences. The difficulty of the algorithm involved must be first-class.

It's nothing to lead a team to the aviation group, but as an 'external' expert group, a dignified academician of information science, it will be very embarrassing if you don't understand the principle of the algorithm after you arrive.

So Liu Hemin didn't want to go at all, but the matter was not whether he wanted to, but the decision made by the software.

There was a small meeting in the office, and after a brief talk, everyone else turned to Liu Hemin, because in the past few months, only Liu Hemin was relatively free, and his professionalism also met the requirements of the aviation group.

Liu Hemin bit the bullet and agreed to the job, but after going back and thinking about it, it was still not safe.

Suddenly he had an idea.

"Yup!"

"Just understand the principle of the algorithm, understand some important points, and it will be completely fine."

"At that time, let the people in the aviation group see the computer and mathematical strength of the software, and we can quickly solve the problems that they can't solve."

"How do you know?"

Liu Hemin didn't have the scruples of the aviation group, so he directly called Zhao Yi that day.

……

Zhao Yi was depressed about the design acceptance work, and there was no news for more than two weeks. Fortunately, a message finally came over there, saying that he was to send people involved in the design.

Only Lei Yong and Bao Enhong could be sent by the War Eagle special research team, and he would never be able to send himself there.

Lei Yong and Bao Enhong quickly packed their things and went to the headquarters of the aviation group on a business trip. Their job was to assist the expert group in the design acceptance.