A big country of aerospace with black technology

Chapter 25 Joint Development of WS-10 Project

Turbofan 10, as the core of the domestic third-generation machine, has been placed high hopes by too many people.

As a multi-national hybrid engine, the main technology of its core engine comes from SFM56, which is the core engine of F110.

As an enduring engine, F110 has double fulcrum large drum shafts, large shaft inclination combustion chambers, intermediate bearing double rotors, and a clear fan structure.

Not only is it considered good now, even the next few new engines have borrowed from the core engine design of the F110.

As for the detailed design and optimization of the engine, a large number of references to AL31F.

Therefore, Turbofan Ten can be regarded as a combination of Maoxiong, Yingjiang and the three domestic technologies.

Of course, compared to the F110 as the core machine, it is better, and the AL31F as a reference for details has many defects.

For example, surge occurs at low altitude and high surface speed. This problem also made the turbofan ten originally developed in China unable to be installed and used at all.

Surge mostly comes from the poor flow state of the incoming flow introduced by the engine (such as uneven static pressure caused by the boundary layer, or the wake of the front machine is sucked into the intake port, etc.) or the stall of the compressor blades caused by blade resonance.

The projects handed over to the Rocket Research Institute are mainly materials.

After all, although they are all engines, the structural gap between liquid rocket engines and aero engines is still relatively large.

Most liquid rocket engines do not work for a long time, while aero engines require at least a few hundred hours of service life.

Therefore, the first WS-10 sub-project received by the Rocket Research Institute is the development of engine tail nozzle materials.

Although the internal differences between the liquid rocket engine and the aero engine are not small, the material requirements for the tail nozzle are basically the same.

It must have the performance of high temperature resistance and high impact resistance.

It's just that the requirements for temperature and impact strength are not the same.

The temperature requirements of rocket engines are higher, basically above 3,000 degrees, and the requirements of aero engines are slightly lower, basically within 2,000 degrees.

However, the service life requirements of aero-engines are higher.

Zhang Xingyang didn't take too much care of this project, but let the material research department of the research institute do it.

These are all necessary for these fledglings who have just stepped out of the campus to grow up.

It is impossible for Zhang Xingyang to complete all the scientific research tasks by himself. He needs scientific research colleagues who can help him, not a follower who just follows behind him.

Of course, Zhang Xingyang didn't completely let go of it, but pointed out the direction of exploration for them.

During the morning meeting in the Materials Research Office on Monday, Zhang Xingyang pointed out:

"Without changing the substrate and source gas, we must change the gas phase immersion time and the method of outer coating,

To control the best performance of the material within the range of 1000 degrees Celsius to 2000 degrees Celsius, and find ways to improve the service life of the material. "

Zhang Xingyang looked at the people in the conference room who were looking at him seriously, took a sip of water and continued:

"This is your next work, how to control time and materials to achieve the effect.

Well, what questions do you have? "

Everyone in the materials laboratory raised their hands and started asking questions.

Zhang Xingyang first ordered a short-haired girl with a bit of baby fat on her face.

As the first person to speak at the meeting, Han Juan was a little nervous, but her thoughts were clear:

"Dean, our laboratory has not yet obtained the newly produced embryos. Do we want to use the previous embryos for experiments?"

Zhang Xingyang didn't want the issue of the base embryo. After all, he has been paying attention to the research and development of the control system recently, and his attention in this area has naturally declined.

Frowning, he said:

"I will ask the 703 factory about this matter. Before the newly produced carbon fiber base embryo arrives, I will use the previous one to test and explore the performance change curve caused by temperature control."

After hearing Zhang Xingyang's explanation, Han Juan had nothing to ask, and sat back in her seat.

Then Zhang Xingyang answered the questions of several people one after another, all types.

Some asked questions about the technical route, some wanted to apply for equipment for microscopic observation, and some even didn't adapt to the canteen of the unit and wanted to change the canteen's cuisine.

It really opened Zhang Xingyang's eyes. In this world, there are really people who can't eat a little spicy food. If they eat pickled spicy cabbage from the cafeteria of their work unit, they will go to the hospital.

But Zhang Xingyang was a little speechless, and he had to tell himself about this kind of thing, just tell the canteen master directly.

Fortunately, Su Xiao's next question is quite normal.

"Dean, is it a bit sloppy for you to let me be the head of the laboratory? I don't have any special scientific research ability."

Although Su Xiao felt that she was not capable enough to bear such a heavy burden, Zhang Xingyang still felt that there was nothing wrong with her.

When she was the leader of the science and technology guidance group before, she was able to arrange the work of the members of the group very well.

And in fact, the members of the scientific and technological guidance group at that time were basically composed of personnel from the material research department.

"I don't think it's a problem for you to be the person in charge. When you were providing technical guidance in the 703 factory, you didn't manage very well."

Su Xiao wanted to argue with Zhang Xingyang, but was stopped by Zhang Xingyang.

"Stop talking, it's up to you, come on!"

After Su Xiao sat down, several people stood up and asked a few questions.

After Zhang Xingyang answered them one by one, the meeting ended here.

Afterwards, Zhang Xingyang came to the Finance Office of the Rocket Research Institute.

Uncle Liang Yi just asked someone to bring him a message, saying that there was a new development in the insurance matter.

"Uncle Liang, what happened to the insurance company?"

Zhang Xingyang first poured himself a glass of water when he entered the door, moistened his throat and asked.

Recently, Zhang Xingyang has understood that there is nothing good to be done with this international insurance fund.

Sometimes Zhang Xingyang wants to directly tell his superiors that we set up an aerospace insurance fund ourselves, so that we don't have to be angry with others anymore.

"It's not bad news. The International Insurance Fund has sent a commissioner to the country to conduct a special accident investigation and confirm whether compensation will be paid."

While flipping through the various documents piled up on his desk, Liang Yi found a fax and handed it to Zhang Xingyang.

After a glance, the general idea is that the International Insurance Fund attaches great importance to this accident in China, and has dispatched special personnel to conduct an assessment and will arrive soon.

Even Zhang Xingyang, who has always been of good quality, couldn't help complaining:

"They pay attention to a ghost, if they pay attention, it won't drag on for more than four months!

This guy is totally farting! "

Liang Yi nodded in agreement, but said helplessly:

"No way, now they have the final say."