Chapter 53: Do good deeds without worrying about the future

Everyone was in high spirits during the meal. After all, they had solved a big problem and were about to solve a number of big problems, so they were definitely all delighted.

Chief Engineer Wang talked a lot with Gao Zhendong. After all, they were both purely technical people, and it seemed that Gao Zhendong was the one who was in charge of the research on this material, which made Chief Engineer Wang have a closer impression of him.

Gao Zhendong is also very interested in AECC. In his previous life, he often visited military sections of major forums and bulletin boards. When it comes to the past of AECC, he certainly doesn't know as much as Chief Engineer Wang, but he knows much more about the future of AECC than Chief Engineer Wang.

As a result, the two of them chatted quite enthusiastically.

Speaking of jet engines, Gao Zhendong couldn't help but ask Mr. Wang: "Mr. Wang, do you think it is possible to use a fan to eject the air backwards in addition to using gas to drive the compressor?"

Before Mr. Wang could answer, a young engineer from LYP-6 laughed and said, "Senior Technician, what's the difference between this and directly ejecting the air backwards? There is also an efficiency issue in the conversion from the air jet to the fan, and the energy loss is even greater."

This time, before Gao Zhendong could reply, Chief Engineer Wang started to scold him: "If you don't understand, don't talk nonsense."

After scolding him, Mr. Wang turned to Gao Zhendong and said, "Zhendong, in addition to metallurgy, have you also studied aeroengines? This is not something that an outsider can ask."

Gao Zhendong shook his head: "No, no, I studied automation, and that's what I thought. I just thought that according to the law, when the gas temperature is high, the pressure is high, and when the pressure is high, the flow rate is high. If the flow rate is high, the deceleration process during the jet is not enough, and the gas is ejected before it is completely decelerated, then the kinetic energy loss is large and the efficiency is low. So I thought about whether I could use the turbine to drive one or more stages of the fan, while recovering part of the gas kinetic energy and reducing the exhaust speed to a suitable speed. In this way, the efficiency is high, and the fuel consumption is reduced. At the same time, the fan can also increase a little thrust."

As soon as these words came out, Mr. Wang's eyes lit up: "Automation? I am convinced, the young are really formidable. Zhendong, you have a very high technical sensitivity. You are right. There is a kind of engine called turbofan engine, which is what you said. However, we don't have an engine to install it on, so we haven't started research yet."

After saying that, he turned around and continued to scold his own people: "Listen to them, you are just uneducated and unskilled, and you are not as sharp-minded as people in other majors."

Gao Zhendong was no longer sleepy now. It was not because he wanted to continue watching Chief Engineer Wang scolding people, but because he remembered a defect in the scientific research system of this era that was often discussed in his previous life - matching.

Simply put, some devices, because of imitation or planning reasons, exist dependent on the objects on which they are installed or used. If this object is discontinued, the device will also be discontinued.

If it is a special dedicated equipment, it is fine and there is nothing wrong with it. However, for a general core equipment like an engine, this system will bring huge waste, and all the previous work will be in vain.

For example, after the improvement plan of the old Type 5 bomber was discontinued, the corresponding Type 5 turbofan engine was also discontinued.

Thinking of this, Gao Zhendong wanted to say what he wanted to say no matter what, especially when the leader of the 17th Ministry of Machine Building was also there. Of course, he didn't think too much about the result, he just felt that he should say it.

--Doing good deeds without asking for reward.

Thinking of this, Gao Zhendong pretended not to understand: "Matching? Isn't the engine a general-purpose equipment? Must it be matched with a project or an installation object?"

"I just started working, so I don't understand much. I just think that as long as the engine is good enough, we can still study it even if the object to be installed is gone. Just like if a fighter jet A is discontinued for some reason, its engine can actually be used on fighter jet B with similar thrust requirements. Or installing one engine makes it a light fighter, and installing two makes it a heavy fighter. Doesn't this simplify logistics?" Mr. Wang was still thinking carefully about Gao Zhendong's words, but the leader of the 17th Machine Department was interested. He had a good impression of Gao Zhendong and had been paying attention to him. After hearing what he said and thinking about it carefully, he felt it was interesting.

"Hey, Zhendong, we have also considered the problem you mentioned, but we haven't figured it out yet. Don't be afraid of making mistakes. Tell me what you think." The leader put down his chopsticks and encouraged Gao Zhendong.

Gao Zhendong touched his head pretending to be embarrassed: "Hehe, then I will say it, it's just my personal opinion, please don't mind it, leaders."

"I just think that the discontinuation of a main product will lead to the discontinuation of a number of general equipment, which is a pity. Are there some equipment that has been evaluated and has good versatility that can continue to be produced?" After talking about one situation, Gao Zhendong went on to talk about the second one.

"Or some equipment with high technical difficulty, high requirements and very complex. Take Mr. Wang's engine as an example. Generally speaking, this kind of thing takes a long time to research. It is often too late to do it when it is needed. Can we separate the engine and the corresponding model into separate projects and work on them separately?"

An engineer from LYP-6 asked: "How do we solve the problem of adaptability and usability?"

Gao Zhendong answered quickly: "First, make a good plan. For example, what specifications of engines are needed, fully demonstrate, and strictly plan. Once the plan is determined, we must unswervingly carry it out. In this way, when needed, even if what we get is not the most suitable, it is at least usable."

"Second, establish interfaces between systems at all levels. The interfaces I'm talking about here don't refer to the interfaces like aviation plugs, but rather a set of standard specifications for functions, performance, installation, maintenance, etc. No matter what means are used to achieve them, as long as they meet this interface, they can be used."

Then, Gao Zhendong gave an example of himself: "Take 3Z-591 as an example. This material was originally trial-produced to cooperate with another scientific research project of ours. I didn't think about it at the time and put it in that project as a subsidiary material. It was the factory leaders who had a strong sense of the overall situation and asked me to take it out as a separate project for research. It's true that the other project is still in the later stage of testing, but 3Z-591 has already produced results and has not been affected by that project at all."

His words naturally praised the factory, but it was not flattery. It was indeed Lao Chen who asked him to take the project out separately.

Although he didn't say much, the eyes of the people present lit up. The leader thought about it for a long time, picked up the cup and said with a smile: "Zhendong is worthy of being the one who developed 3Z-591. He spans multiple disciplines, has strong technical skills, and his scientific research ideas are also very clear. I learned a lot. Your words also gave me a lot of inspiration. Come on, I'll toast you a glass, as a payment of tuition."

Gao Zhendong quickly said something modest, stood up, picked up the cup and drank it all. Of course, he didn't do anything like Xu Damao's "one leader, three of me" nonsense.

Chief Engineer Wang, however, had a look of excitement on his face, and turned to Director Yang: "Director Yang, we are short of people, how about..."

Before he could finish his words, Director Yang laughed and refused: "Boss Wang, stop. It's fine for you to come to me to get materials, but if you want to get rid of me, no way."

Everyone in the room continued to laugh and smile happily, and finally left happily.

When the leader was leaving, Director Yang saw him off to the car. At the side of the car, the leader said to Director Yang: "Zhendong is a talent. You should give him more responsibilities and don't waste him."

(End of this chapter)