Rule system

The top three parts of the turbine fan engine are combustion chambers, high-pressure turbines, and high pressure compressors, which combine together to provide driving for the engine.

Where the combustion is the most basic power source, the high voltage turbine is a member that drives the entire engine under the driving force of the combustion chamber.

The efficacy of the high voltage carrier is most, it is operated under the drive of the high pressure turbine, providing high pressure air source to the combustion chamber, but also provides high-pressure air supply aircraft accumulation, turbine blades and other high temperature parts cooling and intake trails Ice, degenerative use, and so on.

In addition, on the rotor shaft of the high voltage compressor, there is also a certain power to be operated by the gear to drive various attachments of the engine, such as a lane, fuel pump, starter, and a generator and hydraulic pump, etc. on the aircraft, and the like.

The high voltage compressor is in the center position of the turbine fan engine, and is also one of the core components.

In addition to the various features, the most core technologies of high-voltage compressors are to be able to provide booster ratio and stability.

The high-voltage compressor needs to provide high pressure air, which becomes a set of unstable components, and its stability determines the stability of the turbine fan engine.

Any mechanical device stability is the most important, and the stability represents the security. In the process of flying, any situation in the engine is very deadly.

Now the Kunlun engine group, manufactured prototypes have a lot of problems, mostly due to the instability of the compressor, and the largest on the instability problem of the compressor occurs.

It is a state of breathing.

The airflow of the compressor comes from the fighter flight, when the fighters flying, the speed and height of the flight determines how much the gas flow is entered, resulting in the unstable "airflow input".

The flying state and the continuous change of the engine speed, the compressor must also have a constant change, the faster the air flow is, the faster the fighter, the faster, the problem, the problem encountered, the gas stream intensity The reduction resulting in a reduction in the speed of the compressor, the internal pressure ratio is lowered, and the pressure reduction in the front few levels is not significant, and the rear pressure is reduced.

There was a problem at this time.

The pressure is lowered, the gas volume is large, the airflow channel after the compressor is "too small", the flow is not smooth, the airflow is blocked and cannot be all discharged, the work of the blade is not normal.

Thus the gas pressure has a pulsating negative change of pulsating.

When the airflow flows backwards in the front of the compressor, if the back channel is blocked without all flow, the airflow will go forward, and the airflow passage behind will be dredger, and the air air flow is sucked into the compressor. After the stream is blocked, it is backward ...

Such repeated changes, the airflow is rushing back and forth in the compressor, and flows out from the export from the export with a large and unstable pressure and speed.

This is the "breathing" problem of the engine.

When "breathing" occurs, it is accompanied by a turbine gas temperature rise and a huge sound. The internal blade is damaged or a small problem. It is seriously to cause the engine to extinguish directly.

When Zhao Wei worked to solve the compromine problem, the first thing to study is "surge" problem, and the stability is more important than the performance of the compressor.

This is like an algorithm operation, the performance of the algorithm is high, it is bug everywhere, it is not enough to run, and there is no meaning. Only the bug problem can be further improved.

"The compressor on the Kunlun has two designs to deal with 'breathing', one is to ventilate the door, one is the adjustable stratic blade."

"I will not be a problem, but I think the problem is mainly, the design of the static slag is designed." Yuan Haitao took the design map of the high voltage carrier and said his own ideas.

This is also the idea of ​​most people in the Kunlun engineer.

Delicate the door, simply, it is queue, the pressure in the compressor is uneven, puts a part of the high-pressure gas, and the pressure inside will naturally follow a lot.

The design of the stator blade is more complicated. The compressor has two sets of leaves, a set of booster blades with turbine shafts, a set of static slats, compressors, each level of the compressor A booster blade consists of a static sub-blade.

The pressurized blade is responsible for the pressure, and the stator blade is responsible for deceleration.

When the high pressure gas is decelerated, the pressure is also following the increase in continued increase, so that the first level is down, a large amount of gas is backlogged in a small space, and the pressure is very large.

If in the process of boosting, the stator blade has a small rotation of the pressure, and the resistance is constantly changing, or the internal pressure changes can be stabilized, which can control the reduction of '' The possibility.

In fact, simply understand, like something in the sky, the purpose is to make impact, but directly dropped to the ground, may be damaged, fall into the spring, will reduce damage accordingly.

Therefore, the harm is also very obvious.

The movable stator blades, the performance of the compressor plays a reaction, that is, reduced the supercharging ratio, the decreased valve is also the same, and the high pressure gas will also reduce the supercharging ratio.

Of course.

In order to pursue stability to reduce performance, it is also a choice, even if it is an international top turbofan engine, there will be a similar design to make the engine run more stable.

Zhao Yue listened to Yuan Haitao's explanation, frowning carefully thought about asking, "Is there any other method?"

"If there is, I don't know."

Yuan Haitao has some helpless booths, indicating that they are not professionals.

Zhao Wei smashed his mouth, asked, "We develop groups, don't seem to have this talent?"

Yuan Haitao smiled, the meaning of the expression is obvious, 'Is there anything you don't know? '

The R & D group did not reach ten people, counted the team, workers, and the team sent by the Aviation Group, which were more than twenty people, which were specially developed, or only a few people.

Zhao Wei wrook up, "Do you know how this is this talent?"

"Turbine!"

Yuan Haitao said, "There are people who are truly available in this regard, are almost unclear in two engines, academy or other institutions, but specializing in aerospace high pressure compressor research, it is best to find it in the engine group." He meant I don't know if other institutions have related talents, but they are involved in major projects, and those who have nothing to do are not good.

This is the biggest problem encountered by the R & D group.

Zhao Wei wants to trick a few people difficult, because it is a national level of major projects, it is best to find 'internal talent', and 'internal and long-term research and development of high-pressure gas machines', almost all all and Kunlun, Wang Hou engine group Relationship.

and so……

"Digging?"

Zhao Yi was thinking about it, but I didn't think that the role was not very good. After all, it was a aviation engine research and development. It belongs to the aviation group. It is all myself. It is not a successful service. It is not necessary.

"Help me contact the leader of the kingxin engine!" Zhao Yi simply looking for the other party asked, can he could send people.

The person in charge of the Wangwu engine is called Zhang Shuqing. It is a 50-year-old middle-aged person, from the scientific research unit of the Academy of Sciences, joining the Kunlun engine group, and later Wang Hou engine project, he is responsible for the R & D of the kinghouse engine.

Compared with the Kunlun engine, the kingxut engine is highly hoped because the design of the Wangwu engine is very fast, and there is no big problem in manufacturing the first prototype. It is ready to make other prototypes.

When the project progresses to this level, it is generally possible to do the end.

However, Zhang Shuqing is not satisfied with the completion of the project, but to improve the engine, continue to increase the performance of the engine without increasing the fuel consumption, allowing the engine to assemble into more types of fighters.

This goal is also normal.

The problem of the Wangwu engine is not much, even if there is a small problem, over 100 tests have been explained, you can try to assemble into the fighter, but the kingstone engine has a fatal problem is that it belongs to the turbo jet engine, and The biggest problem with turbine jet engines is high fuel consumption.

High oil consumption seems to be more energy consumption, but it is not like this, because the amount of oil that the fighter can carry is limited, the fuel consumption is high, which means the mileage section, the fighters equipped with turbo jet engines, can only be enabled To short distance deterrence, hitting ability, adaptable fighters have been huge.

It turns out that Zhang Shuqing also hopes to increase engine performance, but it is basically only a dream. Their technology is based on Kunlun engine technology, and the internal and Kunlun engine is very similar to Kunlun engine technology.

It's different now.

Zhao Wei has developed the most advanced turbine blade material, which will greatly improve the high temperature resistance of the turbine. The opposing compressor can design higher boost ratios, so that the engine has higher efficacy and brings higher weight loss. Comparison, will not increase fuel consumption.

In recent days, Zhang Shuqing has been with the engine group, and strives to overcome the technical problems of the compressor.

If you want to increase the boost ratio, you must improve the compressor design, whether boosting blades or static sub-blades, or other accessories, there is a certain design adjustment.

The purpose of this adjustment is to maintain stability.

The compressor boost is relatively easy, and even the same design can be done, like a battery, the two batteries are connected in series, and the internal voltage can be provided, and the interior of the compressor is also the same, more increases Groups increase the blade and static slats, and it will definitely directly improve the boost ratio.

However, the subsequent air pressure increases, and the extreme decrease in stability is brought.

This issue is very challenging the level of R & D staff.

Zhang Shuqing is not a professional study of the compressor, but as the person in charge of the engine, he must urge relevant personnel, strive to do design problems. He often personally personally, and others discusses the difficulties of research and development, and there is also a design of the compressor. Fan understand.

At this time, Zhang Shuqing did not think that it would receive a call from Zhao Wei.

"Academician Zhao? Are you sure Zhao Academician? Yanhua University? Twenty Bad? Gourdbach guess?"

"should be……"

Zhang Shuqing asked the staff of the transfer phone.

"What is Zhao's interrogation to call me? Yes! He just formed an engine R & D group? Kunlun two groups?" Zhang Shuqing squatted, "Isn't it to come?"

He wanted to know.

The second group of Kunlun engine has just been established, and it is necessary to need talents in all aspects, and ask the kingstone engine group asking.

"If Zhao's academician opens, let a few people pass." Zhang Shuqing thought.

quickly.

The phone is turned on.

Zhao Yi did not have too much cold, and directly explained the issue of the R & D group, and found a research and development talent to the machine.

"Compressor?"

Zhang Shuqing thought about Zhao Yu, and sent a few people before, but heard the compressor immediately, the Wangwu engine group is also at the mainstry of the compressor. He also thinks that talent is too small, no more I am too much, and if I have to study the compressor on the side of Zhao Wei?

"There is no professionals in his side, what is the study?"

"Is Zhao Wei studied himself?"

"~~"

Zhang Shuqing wanted to have a smile, and he did not make a voice. He took a deep breath to adjust the state, said, "This, the academician of Zhao, tell you the truth, we have lack the compressor related research and development But I will transfer your requirements, convey to the mechanical design group, who wants to pass, I will definitely not stop ... "

He said that it is duled, adding a word, "Reassure. Even if no one is willing, I also assigned a past." "

"Thank you in advance!"

Zhao Wei was still satisfied with Zhang Shuqing's arrangement. The words were directly ignored. He knew that it would definitely "assign a", but there is no strong than one.

Now the R & D group can be one!

......

Zhang Shuqing is indeed talker.

He said the needs of Zhao Wei's demand to the compressor R & D said, and also emphasized a sentence, "The two groups of Kunlun are real and miss, Zhao said there is no."

This sentence says it, no one wants to go.

The design of the compressor is not a mathematical question. There are more than a dozen R & D staff related to the Wangwu engine group, and the design of the final compressor has also spent more than a year.

More than a dozen people have more than a year, how long does it take to do a person?

Anyway, no hope!

"Waiting for our new design, if the Kunlun two groups still need, you can take a look at it."

"Anyway, there is just the construction, and it is not anxious."

"Their research and development have just begun, we are doing a correction now, more important."

"Who are you willing to go, anyway, I don't go."

"I will not go!"

A large group of people said that they didn't want to pass.

In fact, the Kunlun two groups have no related personnel, but only one of the reasons why they don't want to have, there is an important reason. The base of the Wangwu engine group is too far away. It takes more than three hours from the plane. It's too far away.

In addition, it is likely to be equal to the joined Kunlun two groups. The Wangwu engine group has been established in the past ten years. Most people have been accustomed to life here, but they don't want to suddenly transfer to the capital.

If the future is good, it is better to go to the capital, and it is really difficult to say about Zhao Wei.

It's not that they don't believe in Zhao Wei. In fact, most people have confidence in Zhao Wei, even feel admired, but the research and development of aerospace engine is very complicated, especially turbine fan engines, R & D design time is still a few years. Who knows what happens?

So most people still want to stay in the kingstone engine group, and the progress of the engine group is also very grateful.

This is the result and future.

When a large group of people shook his head, he couldn't go, there was a juvenile middle-aged man, and suddenly raised his hand. "I will go."

"!"

Everyone saw it.

Zhang Shuqing also looked at the past, asked in confused, "Sun Lei? Are you willing?"

Sun Lei nodded.

"That line, go!"

Zhang Shuqing walked over to shoot Sun Lei's shoulders, "Going to the capital, change the environment, relaxing, and may be a good thing for you."