Chapter 315: Knowing the difficulties and trying hard to do it

EQ, what is high and low?
Observe first, think again, and finally speak words that match the situation and the other party's three views. This is normal emotional intelligence.
On this basis, it is high to be able to appropriately add elements such as creativity, provocativeness, and humor to make the other person comfortable and seduce the other person's expectations.
On this basis, do not observe, do not think, how to be cool, how to spray, or keep silent, only knowing that it is low.
As for Li Zheng's emotional intelligence, he jumped horizontally from the left to the back, fluctuating repeatedly, nine deep and one shallow, which is actually only related to the objects he communicated with and the situation he was in.
For example, most people, in front of their family members or very close friends, most of them don't play observation and thinking to please each other, and what to say.
In this situation, everyone has low emotional intelligence and reveals themselves unabashedly.
Especially for men, if a good friend cuts their head, they are likely to be stunned. If a good friend plays a game to pull his hips, he will be cursed, and if he is broken in love, he will have to go to bed.
Women are much more delicate. No matter how ugly a dress is bought by a girlfriend, she must be surprised and praised "It looks so beautiful~~~".
As for Li Zheng, the scope of this "owner" is rather large.
The people in the world are in my demon domain anyway.
Relatively speaking, the scope of Lin Yujing's "personal person" is too small, because she has experienced too many tragedies that unintentionally hurt people because of her superior IQ, she chose to use "Uh" instead of language expression outside this range.
Over time, it is equivalent to self-defeating emotional intelligence, and at the same time losing part of the language ability.
Therefore, after suddenly entering the workplace environment, Lin Yujing had to rely on others, otherwise she was afraid of suffering.
Having lost her mother's asylum, she can only stare at Li Zheng all the time, waiting for opportunities to copy his skills.
As for Li Zheng, although the scope of his "self" is very large, he usually does not give up his emotional intelligence weapon when he meets for the first time, especially when communicating with his predecessors.
So he began to observe.
【Zhu Mingyue】
【Academic Ability: 1959】
Stable, domain expert level, own person.
Combined with his current state, he took the initiative to confide words of private affairs...
Li Zheng already knew what he needed most.
"I think you are completely reborn. This mental state is more energetic than many students." Li Zhengzheng nodded, "Although we don't know the details, since we have already taken this step, we should be frank. Go on the next path and don't think about it anymore."
This sentence completely surprised Lin Yujing.
This is no longer a question of emotional intelligence or emotional intelligence, it is simply scum!
Zhu Mingyue originally regretted saying this at the first meeting, but Li Zheng's words made him instantly comfortable.
"Thank you for your comfort." Zhu Mingyue pursed his lips and shook his head, "Unexpectedly...the first person to affirm me turned out to be the first time you met...Family and friends are persuading me to turn back, and my colleagues in the unit are secretive. On the contrary, you can understand my state better... I have to say that the thinking of young people is really too rich now."
As he said, he looked at the two of them back and forth, and then he stared and asked.
"You...were together in high school? To be honest, so are my ex-wife and I."
Faced with this problem, Li Zheng's emotional intelligence thoughts seemed to be suddenly stuck in an endless loop.
Then it shorted...
Lin Yujing even had an urge to seize the door.
"Ah, I'm sorry, I shouldn't say this. I'm a little excited today. Please understand." Zhu Mingyue clicked the email and turned over the resumes of the two. "Secretary Zhao explained to me. You are in data analysis. There is a good set. If you don’t mind, your advanced testing team will find out about the situation and familiarize yourself with the work by the way. I know that you are most interested in engine engineering, but I suggest starting with simpler and basic work, otherwise there will be a big gap. It’s hard to really participate in work."
"Deeply honored." Li Zheng nodded.
"Okay, then I will call the person in charge to come over." Zhu Mingyue said and picked up the receiver of the landline, but after thinking about it, he put it down for a while, and then said instead.
"If you have any questions or ideas, you might as well speak up."
"Secretary Zhao reminded me many times, don't stare at your academic qualifications and fall into a solidified cognition, it will waste your talents."
"As the old director of the 17th Institute, the secretary has experienced almost all the opportunities and difficulties of the aerospace system since the 1990s. I believe in his judgment and his vision."
Zhu Mingyue said, and nodded slightly.
"You don't have to be polite, if you want to be honest, it's your own family."
This family is very kind.
There are some sensitive things that the team leader below is indeed inconvenient to talk about, or he doesn't know it.
Li Zheng naturally accepted his good intentions and tentatively said: "Then...I will dare to ask seven or eight questions..."
"So much..." Zhu Mingyue swallowed and spit, then raised his hand after drinking a large sip of water, "Just ask."
"First of all, what is the current situation of YF-87's team and how are the resources allocated?"
Zhu Mingyue was also unambiguous, and immediately replied:
"The hospitalization of Mr. Zhang is a huge blow. I am temporarily the first person in charge."
"Because our personnel and the kerosene engine are relatively independent, the main backbone is not affected. Although I pass both annual leave and sick leave, most of the comrades returned to work yesterday."
"At the meeting yesterday, we were united from top to bottom and we had a clear attitude to fight again."
"As for resources, both inside and outside the hospital are in the adjustment stage."
"Each institution has its own work plan and schedule, and there is no way to finish it. In the previous period, everyone has always put Huang Er's matter first."
"It can be said that as long as Huang Er has a need, no matter who it is, he must immediately put down his work and immediately start the Huang Er project."
"At this stage, with the proposal of 927, this preferential treatment is bound to disappear, and the hospitals are bound to gradually turn to 927."
"But if we really make breakthroughs and core needs, Secretary Zhao will still help speak, but he is a figure who dares to break into the office of the chairman of the group..."
"But the premise is that these requirements do not conflict with 927."
"It's impossible to let 927 slow down and wait for us."
"Okay, keep asking."
Judging from Zhu Mingyue's rhetoric, he basically has nothing to hide, and Zhao Zhenhua seems to have explained it well.
It seems that in the expectation of the old secretary, he is by no means as simple as coming for an internship.
Li Zheng also stopped being cautious, and immediately asked: "Is there any explanation for the possible cause of the failure at this stage?"
"Well... Which step did you know before 87?" Zhu Mingyue asked rhetorically.
"I only know that the problem is with the oxygen turbo pump."
"That's easy to explain."
Zhu Mingyue gestured.
"You all know that in order to fully burn the fuel and increase the specific impulse, the pressure in the combustion chamber will be very high."
"This means that a powerful enough turbine is needed to inject more fuel into the combustion chamber against this pressure."
"It's like a bottle of Coke that has been shaken wildly, and you have to continuously add more Coke to it. We use a turbo to achieve this process."
"If you want to inject fuel into a 100 atmospheres combustion chamber, the power of this turbine can be imagined, so where does the energy that drives the turbine come from?"
Having said that, Zhu Mingyue looked at the dumb two for a long time before saying helplessly: "Don't look at me... I'm asking questions... Of course Secretary Zhao's vision is okay, but then I have to find out."
After that, he probed forward slightly, and said sternly: "Time is limited, I can't give you a set of papers. We can communicate and inspect at any time. I will arrange future study and work according to your level, and I can answer. Try your best, guess if you can’t answer.

Li Zheng heard this and immediately started thinking.
But as soon as he started thinking, Lin Yujing raised his head and said: "Another combustion chamber is designed inside the engine to burn hydrogen and oxygen fuel in advance to drive the turbine?"
"That's right." Zhu Mingyue smiled, "It seems Master Shen told you about it."
"Um..." Lin Yujing lowered her head and mumbled "No" very softly.
Zhu Mingyue didn't notice, and continued talking.
"This combustion chamber is called a pre-combustion chamber, where the hydrogen-oxygen fuel is burned in advance to do work and drive the turbine."
"Speaking of which, I have to ask questions again. Don't be annoying, I just understand the basics of your subjects."
"What is the temperature at which hydrazine propellants like liquid hydrogen and liquid oxygen can fully burn?"
These words were asked by Lin Yujing, and the question just now clearly ignited Zhu Mingyue's expectations of her.
However, Lin Yujing just grabbed her pants and lowered her head, like a primary school student who was suddenly asked by the teacher when she was distracted.
This time, Li Zheng next to him was very confident: "It should be above 3000 degrees."
Zhu Mingyue turned his attention to Li Zheng: "Then what kind of material can withstand such a temperature?"
Li Zheng thought for a moment this time before shook his head.
"I do not know……"
"The maximum operating temperature of stainless steel is about 1000 degrees. The superalloy used in aerospace engines usually cannot exceed 1500 degrees. Cermets will be higher, but I am not sure that its inherent properties are suitable for blade materials..."
"If you look at the melting point purely, materials such as hafnium alloy, graphite, diamond, and tungsten can indeed exceed 3000 degrees, but they may be too expensive and rare, or they are unable to meet the special tasks of engines due to their plasticity and brittleness..."
"So, I can't think of a material that can be applied to aerospace engines on a large scale and can withstand the high temperature of 3000 degrees..."
When Zhu Mingyue heard the end, he started to harp unconsciously.
"The foundation of chemistry and materials science is also good."
"Ah..." Li Zheng waved his hand modestly, "It's just a few small competitions...I can't even think of such a material..."
"It's right if I can't think of it, and I can't think of it." Zhu Mingyue smiled, "This kind of perfect material only exists in theory, and the materials of the whole earth together may not make a rocket. We adopt it on a large scale. Most of the alloys whose working temperature is within 1500 degrees, mainly rely on special coating and propellant flow to achieve cooling."
"However, these technologies are greatly restricted in turbo pump blades."
"In short, this part cannot be cooled at this stage, and the upper limit of the pre-chamber temperature is only 1,300 degrees."
"But the temperature at which liquid hydrogen and liquid oxygen fully burn is 3000 degrees."
"How to do?"
Lin Yujing, who had been silent for a long time, suddenly got her energy: "Insufficient combustion...Excessive combustion?"
"Yes, we injected excess hydrogen or oxygen into the pre-combustion chamber to create insufficient combustion and control the internal temperature within 1,300 degrees." Zhu Mingyue turned his head again and was drawn to Lin Yujing's side, "Then The question is again, is there an excess of hydrogen or an excess of oxygen?"
"It must be hydrogen." Lin Yujing nodded vigorously, "High temperature pure oxygen will cause violent oxidation and corrosion, who can withstand this."
"Very very good." Zhu Mingyue wished to applaud. "If you hadn't thought of it all by you without the guidance of Master Shen, I really hadn't seen your mind like this..."
Before he finished speaking, he hurriedly said to Li Zheng: "That...you are also very smart, there is no other meaning..."
"It's okay, go ahead..." Li Zheng's face was extremely flat, "I'm used to it."
So is Lin Yujing, and so is returning to the wind...
Facing this inhuman brain circuit, Li Zheng has long been used to...
"Okay, then continue." Zhu Mingyue coughed and said, "After such hydrogen is overburned, exhaust gas will inevitably be produced. We need to set up an exhaust system..."
"In the first zero-reset failure model, the problem was the exhaust system."
"In simple terms, the exhaust port is broken, causing the airflow to block."
"In a short period of time, the air flow that propels the turbo pump operation suddenly decreases, and then it is impossible to inject fuel into the combustion chamber."
"Combustion stopped quickly and the engine stopped."
"This is the complete failure to reproduce."
"Such a failure has never occurred in the previous test run of more than 30,000 seconds."
"We believe that during the liftoff of Huang Er, he encountered special resonance in the occasional extreme environment, which caused the exhaust system to malfunction."
"This exhaust design is time-tested, and there has never been a precedent before."
"At that time, we thought that it was just bad luck and the ship capsized in the gutter."
"After determining this point of failure, we raced against time to strengthen the entire exhaust system so that it can withstand worse conditions than the failure reproduced, and then sent the new version of the engine to the test site with full confidence."
"In the first two regular tests, the engine still performed well."
"You have already seen the results of the third extreme environment test."
"There is nothing unusual about the reinforced exhaust system, but the shaft system is broken."
"The shaft system is the core of the core. The fracture here is ten times more serious and ten times more complicated than the exhaust failure. I am afraid it is difficult to repair and repair. Many people think that the process of finding and repairing the failure It's even longer and harder than redesigning an engine."
"As an inappropriate analogy, we first found a small leak in the dam and then blocked it with cement."
"As a result, the entire dam collapsed the next day."
"It turns out that we are not blocking the leak, but the ant colony."
"The embankment of a thousand miles is already densely pierced by ant dens."
"This is the seriousness of the problem at this stage."
At the end, Zhu Mingyue nodded solemnly.
"Therefore, I personally do not object to the 927 project."
"In the case of Mr. Zhang and Academician Zhang falling, I have the responsibility to take over."
"But in my experience, such serious shortcomings are difficult to solve in a short time. In order not to affect the country's follow-up aerospace strategy, 927 is also a painful choice for the leaders, a choice without choice."
"But this does not affect our determination to go all out."
"Knowing it can't do it."
"Knowing how difficult it is, I try to do it."
"Since its establishment, the 17th Institute has been moving forward with great burdens."
Zhu Mingyue stood up and raised his right arm.
"Li Zheng, Lin Yujing."
"Welcome to join the China Aerospace Power Research Institute."
Li Zheng shook hands with Zhu Mingyue, and shook them: "For it! Try hard for it!"
When Lin Yujing shook hands, she was much calmer, and asked thoughtfully: "I can't figure out one thing..."
Zhu Mingyue nodded with interest: "Please speak."
"Why do we have to exhaust?" Lin Yujing frowned and rubbed her chin in a manner. "The so-called exhaust gas of the pre-combustion chamber still contains a large amount of excess hydrogen. Why should it be wasted? Injecting into the combustion chamber is not good. Isn’t the overall fuel efficiency of the rocket higher?

Zhu Mingyue stared when he heard it: "Your mother really didn't tell you?"
"No……"
"Then you might be able to take her class in a few years..." Zhu Mingyue nodded and explained, "Of course the design you mentioned exists, and it is the best design. Our YF-100 kerosene engine This design is adopted, which not only fully burns, but also doubles the air pressure in the combustion chamber. But for the hydrogen-oxygen engine, its requirements for structure, parts, pumps and materials are higher, and we cannot challenge the highest difficulty as soon as we come up. Therefore, a gas generator cycle that requires exhaust is used."
"Um..." Lin Yujing let out a long sigh of relief, "This makes sense..."
"Originally, Secretary Zhao called you so, I still don't understand... now I completely accept it." Zhu Mingyue pursed his mouth and nodded, "18 years old, my God... The education system has been in operation for so many years, but it has been cultivated. Someone like you."
Just after Zhu Mingyue finished speaking, he quickly turned his head towards Li Zheng: "Of course there are others like you... it's you, I was wrong..."
"It's okay, used to it, used to..."
"Well, given your level, the test team should not go." Zhu Mingyue arranged this, "A temporary fault investigation team will be set up soon. There will be someone who is absolutely enough to be your teacher to act as the team leader. You directly Follow him."
As he was talking, there was a unique and dense knock on the door behind him.
咚咚, 咚咚咚, 咚咚咚咚咚, 咚咚咚咚咚咚...
Li Zheng still had some impression of this knock on the door, it was a sequence of prime numbers anyway.
However, his face became stiff, with a bad feeling.
"Enter." Zhu Mingyue said.
Immediately, an old handsome face poked in: "Wait for a long time, can you join the team?"
Zhu Mingyue was overjoyed. He personally rushed to welcome the people, and took the old man's hand to the two men: "This is Chief Engineer Du Songtao Du, the top expert that NASA is rushing to ask for, and I am impatient with the Rockets etc. , We have specially invited our 17th office to support. From now on, you will follow him."
"what……"
"Well……"
Li Zheng and Lin Yujing were originally happy.
It's not good all of a sudden.
There is a feeling that Sporeman spies have penetrated into human beings, "Parasite Beast" or something.
Du Songtao was quite happy, and he drank a glass of water when he entered the house. He leisurely walked up to the two of them, drank the water and raised his eyebrows: "Is it a coincidence."
What a coincidence your mother, this is obviously a conspiracy of the Spore Man!
Looking at the strong hostility between the two, Zhu Mingyue asked: "Know?"
"Unfamiliar."
"Unfamiliar..."
"It's easier to get acquainted." Zhu Mingyue said, "Then you two go out first and wait, I'll explain a few things to Song Tao."
The two went out of the office with their heads down.
Then I ran into the big brother who was ahead of them.
The eldest brother stood in confusion: "It's been an hour...I have worked so hard to line up...and let you...how did you jump in the queue...Can't you discuss it with me..."