Chapter 291

Back in the machine room, he Zhongrui renewed his spirit, and on the one hand, he took two interns to visit, and made a general introduction.

It is the first time Lizheng entered the central control room. Although the volume is small, it is also full of five zang organs.

There are six large screens on the main wall, two of which are video monitoring of the launch field, and the other four display a series of parameters and charts that are only understandable to the insiders.

On the opposite side of the screen are three rows of desks, desktop computers and portable computers, which are added up to about 230.

Although there are few people in the machine room, they also wear grey test clothes and special cloth shoes.

It was like a small launch center.

In fact, the function here is also much the same as the launch center.

The main work of the western suburb test ground test field is to be responsible for the overall ground test of the rocket.

Simply speaking, the prototype is fixed on the launch pad, so that it can run in place. Through collecting and analyzing its operating parameters, the purpose of finding problems can be achieved.

In front of me, Li Zheng and Lin yuejing are actually just a general control room, and the test bench is a kilometer away from here.

As for the actual test, because of its high fuel cost, it is not often available, such tests will usually be attended by Shen shengshenglan and others.

The main work of the test group is to reorganize all the test data of Huang Er since the project was established. The abnormal ones that were not considered as abnormal were sorted out and analyzed preliminarily, and then the technology group was fed back to the technical group in days.

At the same time, the engine test data of the external hospital, especially the sixth yard, are also comprehensively checked. This part of the work is really huge.

"Is the data of the sixth house also in our charge?" Lizheng asked as he walked along with him.

"They should be responsible for it, but director Chen insisted that the data should come over, and we should screen it here." He Zhongrui rubbed his eyes and sighed, "have you seen the news manuscript of the launch failure?"

"Well, the core first engine is shut down in advance." Lin Yue Jing asked curiously, "is that really?"

"Ha ha, my classmates and friends asked me that." "It's really this, don't listen to conspiracy theory. It's certainly not possible to expose core technologies, but not to lie," he said, with a hand in his hand

"Well, that's definitely the engine problem." Lin Yue said, "yf-87, the engine used in core level I, was developed by the sixth Institute. They should be as nervous as our hospital now."

"What? What 87? What six yards? " "How did you suddenly understand this?" Li Zheng said in surprise

Lin Passover Jing quickly turned his head and left and looked right: "did you not see the administrative materials and project documents given yesterday?"

"I'm home and I'm 12 after I've had a shower." Li Zheng clenched his fist angrily. "It's you, and he stole it!"

"Just, I saw it on my way home..."

"You're driving on the road, carrying me!"

"Oh, don't care so much..."

He Zhongrui was listening to him a little wrong.

The ears of other engineers who were working hard on the surface also rose.

The atmosphere of the machine room becomes heavy and sour in a moment.

"I dare to ask you..." He Zhongrui swallowed his mouth and puffed up his courage and asked, "are you two friends and men?"

“？？？”

"No! No! "

This answer, like a fresh wind, blew away the whole machine room of the weight.

The nervous engineers have become happy again.

He Zhongrui also smiled with a long sigh: "sorry, sorry, just look at you and me It's very close. "

Li Zheng shook his head and said, "it's just a normal friendship."

"There is no friendship." Lin added, "it's just the competition for exams."

"Ha ha ha ha ha, speaking of the exam..." He Zhongrui lifted his glasses and smiled, "we here are all passing the examination, and understand the benign competition among students."

The engineers in front of the screen nodded confidently, and those with glasses were lifted.

People who can sit here, usually in their own school, are all top ten.

However, they are only empty, lonely, not the top ten of the soul.

Keen on test competition, beautiful and lovely female high school students, how did I not meet that year?

Well, there is a samsara in the heaven.

Director Chen, I don't think it's arranged.

It's time to show the real power of learning hegemony to the ignorant high school students.

But there is someone else who is still suspicious.

"Which school are they coming?" asked one of the engineers who had just taken over the shift

"Cherry lake."

"Hi I thought how to be all four central schools, benevolence attached. " The engineer took out the computer in his bag with a smile. "Is the leadership relationship coming?"

"I heard it was like a greeting from the Ministry of science and technology."

The engineer smiled and looked up at the second humanity: "students in this school still put their competition results on their lips, and they think about them very lovely.""Yes..." The engineer beside me smiled and said, "I fought for the college entrance examination from Sichuan to kill him. I watched the children competing in the school beside Jijing park. I really didn't know how to laugh."

They looked at each other and smiled, and they didn't say much.

Believe it soon, there will be a chance to show up.

Before the monitor screen wall, he Zhongrui explained to Lizheng the key words he didn't understand.

The first is the yf-87 engine.

Y. The first letter of the "liquid" Pinyin is taken.

F. The first letter of the engine pinyin is taken.

87 represents its serial number.

Together, it can be understood as the 87th type liquid engine.

Similar are WP (turbo jet), HS (piston) and so on.

And this yf-87, which marks the industrial level of China, was developed by the sixth Academy of space.

The six institutes, namely the aerospace propulsion technology research institute, specializes in liquid engines. The products numbered after yf-50 are basically customized for the Yellow River series rockets, which can be said to be the largest research institute with the closest cooperation with the first Academy.

At the same time, it is also the deepest court involved in the loss except for one court.

According to the principle, the investigation of internal problems of engine should be completed by the sixth yard.

But it is clear that Chen Hongbing is not prepared to fully trust the six institutes in this situation, but to let a test team move forward synchronously.

This leads to the extremely heavy task of limited test team members, which requires studying and analyzing thousands of completely unfamiliar test data and trying to find some clues.

"Now that this task is about 17 percent complete, it's going to get faster and faster." He Zhongrui said, while leading them to a table full of materials, "these are the necessary knowledge for studying engine test data. You will try how much you can understand this half day. If it is too difficult, I will arrange other work."

At this moment, an engineer who just made a good water crossing looked over and said, "these are too difficult for high school students, or come to my side to organize the documents?"

"I don't want to Director Chen just called and asked me to give them a hard time. " He Zhongrui shook his head and rushed to the second humanity. "To be honest, this part of the work, basically, has to be carried by the talents who have been working for threeorfour years. Including myself, he has studied for about a week before he can barely understand the engine test."

He said he picked up a data at will, flipped a page at random, looked at the complex schema and data and said, "I am not difficult for you. If I can't understand, I will ask director Chen to see if I can start with simple things first."

"Yes." Li Zheng rubbed his hands and stood ready to go.

"I I can't do it. " Lin Yue said, swallowing his mouth and spitting, and raised his hand. "I apply for a simple application directly..."

"I said it early." "Just as you did, you sort out the data we sifted out last night and integrate it into a document and send it to the technical team," he said with a smile. Come and come, I'll teach you. "

"Don't stop!" The old brother who was watching the play came up and said, "leader, you are busy with other things. I will teach you this kind of work."

"Well, you can't tell."

"I have been doing this work all the time. I know better than you Team leader, you see you are all busy all night. Take a rest now. "

"I am on a break when the new man just came?"

When they are fighting for nothing.

Li Zheng has already taken a chair to sit at the desk, and he should be steady in setting up the manuscript, notebook and calculator.

I didn't have time to find something to learn. This information hit me.

It must not be learned to die!

……

Li Zheng's study is full of 40 minutes.

When he returned to find hezhongrui, he just finished the document for Lin Passover Jing and was about to narrow down in the lounge.

When Li Zheng came over, he Zhongrui was tired and smiled: "I said it, I can't understand it In this way, I have explained the document to Xiao Lin. you should organize with her first and get familiar with the work. "

"No, I understand it basically." Li Zheng waved expectantly, "come and come, and have a big job."

“？？？” He Zhongrui was stunned and looked at the eye table again. "You Just looking at two pages, I feel like I'm ok? "

"I still saw a lot." Li Zheng explained with a hard head, "just a lot of knowledge I have been in touch with before, and I can jump past."

"No..." He Zhongrui grabs his scalp and says, "space engine knowledge, you teach me where to contact?"

Li Zheng is not good to say anything, only raising eyebrows and saying: "good brother, come to some big work first try it."

He Zhongrui saw his face frolicking and smiling, and he was a little impatient: "Li Zheng, how much can I do so much, so you are in this situation, can I give you work?"

"Ah, this..." Li Zheng is in a dilemma.

He is not to blame him Zhongrui, and it is true that he has problems in the words that are reasoned.But how can this be explained

At this time, a cold smile came out of the blue.

"Test him." Lin Yue sat in front of the computer, scanning the document and said, "he will not be allowed to take any examination."

"Wonderful." Li Zheng stared at him again, and then he pointed out, "test me."

“……” He Zhongrui is lazy to waste this time naturally, let alone being sleepy. But considering the complexity of these two identities, he nodded. "Li Zheng, the work is really tight now. If you can't answer it, either go back to study, or do the document work with Xiao Lin, at least not to increase our burden."

"Sure." Li Zheng's look is also gradually grim, "teacher he asked directly, save time."

"I'm in a dilemma." The forest Passover stood by and coaxed.

"Ha ha..." He Zhongrui said with a bitter smile, "I really want to give you face But since Xiao Lin said that I'm not welcome. "

"Please..."

He Zhongrui knead his forehead and thought about it.

Several people in the office were also frantically stealing.

It's just high school level, and it's just a field of master's degree.

It's time to show dignity, leader.

Let Lin Passover Jing also take a good look at the level of the test group.

The five words "aerospace engineer" are not in white.

As for he Zhongrui, although he was asked to have a difficult problem, he was a doctor level existence after all. On the first hand, he would not answer the delicate problems that the other party would not answer, and it is inevitable that some bullying the younger generation.

On the other hand, he also wanted to take the opportunity to examine the level of Li Zheng.

Therefore, he raised a question of stability.

"Main failure mode of pump engine."

Li Zheng replied immediately.

"There are 12 summary items in total."

"1. Joint leakage."

"2. The initiator is abnormal."

"3. Hot gas leakage."

……

"12. Valve is abnormal."

He Zhongrui was surprised and asked: "where are the corresponding failure modes?"

"Leakage, corresponding joint, weld, crack, rotating seal..."

……

"Foreign matter, corresponding injector, turbine pump, air flow hole."

He Zhongrui stared at Li Zheng for a long time, and asked, "have you ever carried it before?"

Li Zheng had to laugh back.

Who's the fucking one to carry this?

"This one doesn't have to be backed." "After a comprehensive understanding of engine structural components, a fault is proposed, and the possible parts can be analyzed naturally, and it is good to understand," Li explained

Not only is he Zhongrui, even the crazy steal of other people have some looks.

Go to your mother, just to back, understand a hair ah.

They don't know, after two races of tests and a series of thinking tempering Li Zheng

The brain, has become strange.

“……” He Zhongrui asked after a moment of entanglement, "please list several main fault characteristic value parameters."

"Flow, pressure thrust, temperature, vibration, speed, stress, torque..."

"Enough." He Zhongrui raised his hand and said, "let's simply say how to choose the characteristic value."

"N feature parameters XK are selected from the existing n feature parameters Xi, and the optimal feature subset is formed in the sense of a certain index function J, and all the possible alternative eigenvalues..."

He Zhongrui interrupted Lizheng again and asked again, "what is awssa?"

This time, Li Zheng thought for a while and said, "adaptive weighting and average algorithm, based on engine characteristic signal analysis fault, prediction of one of the algorithms."

He Zhongrui suddenly returned, took up the paper pen on the desk, and wrote down the formula that the two lines of hair volume was more than 60% and could not be understood.

"Above is the mean of the test parameter, and the variance below. Can we calculate the grabbs statistics?"

"Wait a moment..." Li Zheng took over the pen and thought about it. He wrote down a formula that is simple, but how to send a formula that the talents with a volume of less than 70% could understand. Then he took out the calculator and rubbed his hand and said, "teacher, you should take a rest first, and I will start to calculate slowly."

"No more..." He Zhongrui held down Lizheng's arm, and his face showed a kind of innocent suspicion of life. "Why do you even understand fuzzy mathematics?"

"Just..." Li Zheng hesitated to say, "I understand it a little."

“……” He Zhongrui looks at Li Zheng, and it seems that there are three words "why" in his eyes.

After a long time, he let go and rushed to the back.

"You'll teach him the process of analyzing engine test data."

“…… Good... "

He Zhongrui looked at Li Zheng and then looked at the table information, and finally asked, "why..."All of a sudden, there was another no smile.

"Uhha..." Lin Qijing covered his mouth and said with a smile, "now I know how difficult I am Who has learned that? "

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