Genius of the Rules-Style System

After Zhao Yi expressed his design ideas, the R\u0026D team conducted demonstrations on both materials and design.

Sun Lei and Zhao Yi were still responsible for the design. Another person involved was Zhou Qing. Zhou Qing explained what important participation is. He just expressed an idea. Zhao Yi made a feasible plan to expand the idea. He I don’t know much about the structure or design, so I spend most of my time serving tea and pouring water.

However, Zhao Yi still asked Zhou Qing to participate. After all, it was Zhou Qing who provided the idea.

In terms of research and development, ideas or creativity are the most important. Without ideas, there is nothing. Zhou Qing only provided ideas, but only with his ideas came the design.

This is R\u0026D contribution.

In terms of materials, Li Rongmao and Zhang Hongtao are in charge. They need to study together what materials meet the requirements and list in detail the properties, parameters and indicators of the materials that meet the requirements. They don't just list one type, but many types. , make an analysis report on the advantages and disadvantages.

In the next three days, the R\u0026D team worked on this work.

Three days is enough time to finalize the design.

In the end, they came up with a plan that met the requirements in design and materials, and finalized the design of the bleed valve.

So in Sun Lei's next design plan, only the last problem remains unsolved--

Plumbing problem!

The compressor is in the middle of the turbofan engine, separated from the combustion chamber and turbine group by the jet port. The pipes should be arranged parallel to the jet port, which is equivalent to spanning half the length of the engine.

This distance is really too long.

Because the inner covering of the engine needs to withstand high temperatures and pressures, it is at least made of titanium alloy. Adding a few more internal pipes will add a lot of weight, and the power that can be provided by abandoning the piston is very limited. Even when it is running, it can reach 5% of the main jet nozzle, which is already the theoretical maximum value.

This power is actually not low, because when the fighter aircraft slows down, the fuel supply will definitely be greatly reduced. With the auxiliary power provided by the bleed valve, the fuel supply can be further reduced.

But it is equivalent to the weight added to the engine, and designing a parallel jet pipe will definitely not be worth the gain.

In the final analysis, it is still a design issue, but the pipeline is not like a bleed valve. A very sophisticated design can be used to make up for other problems. The straight line distance between two points is the shortest. It is difficult to use a more sophisticated design on the length issue. To what effect.

Of course, there are still plans.

Yuan Haitao came up with an idea. He thought that the exhaust vent could be placed directly in the secondary air duct. The turbofan engine does not have only one air duct. The internal main air duct is the source of engine power, and various internal components are the main air duct. For service, the secondary air duct is on the outer layer of the main air duct. The design purpose is mainly because the front fan occupies too large an area, while the center compressor occupies too small an area.

When the fighter plane flies very fast, all the high-speed air cannot pass through the main air duct, and the engine itself becomes a huge resistance, so the secondary air duct and the outermost third-level air duct are designed.

When the wind strength rises to a certain level, the air openings of the secondary air ducts will be opened, and air can pass directly from the secondary wind to the outermost three-level air ducts. Similarly, when the wind strength is higher, the outermost three-level air ducts will also be opened.

If the air outlet of the deflation valve is placed directly inside the secondary air duct, the high-pressure air can be discharged directly to the secondary air duct and then discharged along the air duct to the air outlet.

This idea was directly rejected by Zhao Yi and Sun Lei, because the high-pressure air would not be able to increase the driving force if it was discharged to the secondary air duct. What was the point of the previous design?

Therefore, the air outlet of the bleed valve can only be placed inside the first-level channel. It is best to discharge high-pressure air and play other roles, such as entering the combustion chamber to promote fuel combustion.

"Exhaust into the combustion chamber is impossible."

Sun Lei shook his head directly, "The temperature of the combustion chamber is too high, and the high temperature will impact back to the inside of the pipe along the exhaust port, which can easily cause damage."

Zhao Yi nodded and said, "Don't worry about the combustion chamber. We still need to add the exhaust port to the edge of the jet."

"That's okay."

He thought about it carefully and said, "Redesign the outer layer of the main air duct and the outer layer of the secondary air duct, try to shorten the distance between the edge of the combustion chamber and the injection port, and reduce the possible increase in weight."

"Let's give it a try~"

Zhao Yi finalized the research and development direction, and the others had no objections, because they were all completely outsiders in the design of the engine outer skin, and none of them had done similar design work.

So everything depends on Zhao Yi himself, but for him, the design difficulty is not good. Others need to consider all aspects of the design, and with enough conditions, he can easily get the ideal design structure, as long as It took him a day and a half to come up with a design plan.

This plan is to design the outer layer of the compressor into an arc shape. Because the combustion chambers on both sides are very small, the compressor forms a semi-wrapping structure for the combustion chamber. The exhaust pipe of the bleed valve can directly cross the combustion chamber and pass through it. The outer layer of the turbine group is too thick and reaches the edge of the jet port.

Although it still travels in a straight line, the length of the pipe is greatly reduced, only a quarter of the original one. It can be designed in the inner cladding without the need to assume an additional layer of material.

Of course.

Because pipes are added to the inner layer, the relevant parts must be thickened, and the total weight will still increase.

"It's only one-tenth of what was originally expected, and the weight gain is acceptable for the power and stability it can provide."

Sun Lei came to a conclusion after doing calculations.

Zhao Yi was very indifferent. He already knew the results after making the design. The calculation was not difficult for him. He just showed the design to others and asked them to give their opinions symbolically, so that everyone could add something. Sense of participation.

The best result is unanimous approval.

It doesn't matter if someone has an opinion. Just explain it briefly and ignore it.

That’s it.

All problems in Sun Lei's design have been corrected.

This set of designs was completely finalized, and there was an internal celebration in the R\u0026D team. Everyone came to congratulate Sun Lei on his success. The adoption of a set of designs represented success. Zhou Qing also got a little 'credit', he was better than Sun Lei. He should be envied, because he really just expressed his ideas. Sun Lei did the design and followed the whole process of research and development. After joining the Kunlun Group 2, he worked more than twelve hours a day and put in a lot of effort.

Zhao Yi celebrated and asked everyone to keep up their efforts, "We will try to solve all the problems in one go and design a brand new, top-notch fan engine!"

"This project has been delayed for too long."

He said seriously, "I really want to finish it in one go. There is not much work left, so work hard and come on..."

Zhao Yi's encouragement to everyone comes from the heart, but most others don't understand it.

"The project is taking too long?"

"how long?"

Sun Lei asked doubtfully, "As far as I know, the Kunlun Group 2 has just been formed, right?"

Zhou Qing said, "You came late. The time Academician Zhao mentioned should be calculated from when we shipped the prototype."

"How long until now?"

"It's been almost half a year. We came here in March of the next year, and now it's September!" Zhou Qing answered seriously.

"Half a year? How long?"

Sun Lei listened blankly and didn't know what to say.

The Wangwu engine unit is a spin-off from the Kunlun engine unit. When it came out, it brought a large number of people and technologies with it. All they did was to revise and improve the original foundation. As a result, it took more than eight years to finalize the design. A prototype has been produced, but now it is still far away from being able to assemble a fighter jet. It feels like it is at least two or three years away.

Yanhua University has only been studying the Kunlun prototype for half a year, but it has already completed the core research and development of turbine blade materials and demonstrated the design of the compressor bleed valve. The results can be said to be very impressive.

But, finishing the design?

"There is still a lot of follow-up work. According to this progress, the fastest, fastest, it will still take another year, right?"

Sun Lei calculated it based on Zhao Yi's work efficiency. If it were a Wangwu engine unit, let alone one year, it would be acceptable to design and finalize it in three to five years.

…

Sun Lei far underestimated Zhao Yi's speed because he didn't understand Zhao Yi's working methods.

Next is the internal blade design, including turbine blades, supercharger blades, front fan blades, etc. As long as they are on the main shaft, they are designed as a whole.

This must use Wang Zhiguo's combustion chamber power argument.

After Wang Zhiguo came to Yanhua University, he almost became a neglected person, but he was very motivated to work, because before he came he heard that he was doing a demonstration of blade dynamics for materials with temperatures above 1700 degrees. The power team felt that it was meaningless, even He himself was the same. Unexpectedly, not long after he arrived, he heard that Zhao Yi had led a team to develop nickel alloy turbine blades that could withstand temperatures above 1,700 degrees. His work suddenly became very valuable.

Therefore, Wang Zhiguo has always worked very hard. He spent a lot of time, slightly made up for his lack of ability and experience, and came up with a fairly rigorous design plan.

After Zhao Yi took over the design plan, he made perfect corrections in just one night.

The power control plan was quickly finalized.

Zhao Yi praised Wang Zhiguo's work and told him to give him a bonus, which was a public encouragement, and he immediately started working on the design of the spindle blades.

This job is too complex.

The main shaft is the core of the design of the turbofan engine. The compressor booster blades, the turbine group that finally provides power, and the front fan blades are all very complex. In the design drawing of the Kunlun engine, only the structure and explanation of the three blades are shown. Just dozens of pages.

However, the detailed design description provided Zhao Yi with sufficient conditions. The work he did was not to redesign, but to make appropriate improvements based on the original design.

That's it.

In fact, the most 'scoring' work of the Kunlun engine team is the design of the main shaft, because the design of the main shaft function is minimally affected by material limitations and precision manufacturing processes. The supercharging blades are only designed for supercharging, and the turbine assembly It just spins the spindle driven by combustion power.

If the most perfect spindle design is rated at 100 points, the world's top engine spindle design can score 90 points, and the spindle design of the Kunlun engine unit can score at least 75 points.

All Zhao Yi needs to do is to make improvements on the basis of the original design, in line with the improvement of combustion chamber power and turbine blade material performance. Using the "Supervision Law", he can find unreasonable and influential places in the design. Whenever he performs work in one place, With improvements, the spindle design can be improved.

After making more than a dozen improvements in a row, Zhao Yi confidently scored over ninety.

It's perfect now.

If you want to make further improvements, you will have to be affected by the materials and precision craftsmanship. In other words, if you design it and you can't manufacture it, further improvement will be meaningless.

The combustion chamber is demonstrated.

The turbine blades and turbine group are available.

The booster blades and exhaust valve of the compressor are all designed, and even the internal skin materials of the engine have new designs. The rest is just the demonstration of the compressor stator blades and other auxiliary functions.

Sun Lei said that with the new exhaust valve solution, there is no need to design movable stator blades. Zhao Yi also agrees with this statement, but the reason is not that the exhaust valve can provide sufficient stability, but the design of the stator blades themselves. It can help increase stability. The design does not necessarily make the stator blades movable, but adds some arcs and holes inside to prevent the high-pressure air inside from flowing back into the low-pressure stage blades outside.

In the office.

Zhao Yi studied the stator blades attentively, hoping to come up with the best plan. Similar designs are easy for him. As long as there are enough conditions, he can come up with a very good plan.

During his continuous research, he quickly came up with a plan, which was to use a large curved structure and the design of tiny holes to allow the stator blades to reduce the wind speed while also preventing the reverse flow of high-pressure air. After he found out the plan, he quickly recorded the contents in his mind in detail with a pen. After making an engine design, he found that his drawing ability had improved a lot. It was drawn by himself, not just by himself. Rely on system capabilities to let yourself know how to "write".

After finishing the last stroke, Zhao Yi looked at the design drawings on a few pages and couldn't help but smile with satisfaction. He stretched for a long time, feeling that he could relax a little.

Now that the main core of the engine has been designed, only the control system, auxiliary components and other issues remain.

These problems can be solved slowly in the future. As long as the main design of the engine is finalized, prototype production can begin. After the prototype is available, improvements can be made to add supporting auxiliary functions, and engine debugging and operation tests can also be conducted.

The current process is to summarize the designs together, submit them for review and finalization of the designs, and then apply for prototype manufacturing.

There was a knock on the door suddenly.

"Academician Zhao." A shout came from outside, it was obviously Yuan Haitao.

"Enter!"

Yuan Haitao pushed the door open and walked in. He asked hurriedly, "Academician Zhao, why are you still here? The review team is here."

"Inspection team?"

"The aviation group, the Science and Technology Department, the Materials Institute, and the Kunlun Group formed a review team together?" Yuan Haitao said, "Didn't I say a few days ago that they would come together to conduct an initial review of the Kunlun Group 2 project? It's the day after tomorrow, I didn't expect it to come today, and there was a surprise attack..."

Zhao Yi thought about it carefully and seemed to remember Yuan Haitao saying that his superiors would send a review team. 'Review' sounds very serious. In fact, the review is for the project, that is, to come and take a look at the R\u0026D environment, project participants, etc. , and learn more about the needs of Kunlun Group 2.

Because the project was applied for by Zhao Yi and received strong support from the aviation group, the superiors sent a team to review it. In fact, it was just to take a look around and see if the Kunlun Group 2 had any needs.

For example, talent, funding, etc.

If you are asking for more funding, complaining to the review team is definitely a good opportunity.

Zhao Yi doesn't need more funds for the time being, and he doesn't think the review will be of any use, but after all, he was sent by his superiors to look at the project...

"You came at the right time!"

"I just wanted to ask them how to submit the engine design, how to review and finalize it later, how to contact them to produce the prototype, and how long it will take..."

Zhao Yi suddenly stood up with anticipation and walked out with Yuan Haitao.