When will I have a long tassel?

"Xiaohui got an unexpected harvest when she returned to Factory 82."

At Tang Zifeng's house, Xiao Wenjun said to Tang Zifeng on his laptop. She had just finished an online technical discussion with Yu Xiaohui, and was quite impressed by Xiaohui's new ideas.

"This is called stupid blessing." Tang Zifeng said with a smile.

It turned out that when she heard Zhao Jinquan talk about the system engineering method that day, Yu Xiaohui was keenly aware that this should be the key to solving the problem that had troubled her for a long time. She humbly asked Zhao Jinquan for advice, and then she learned that this unassuming old master was the deputy chief engineer of a key model of the aerospace system 30 years ago. Later, he suffered from severe neurasthenia due to excessive use of his brain in scientific research. , then he left the design position and went to the logistics department to take a job as a casual employee to recuperate.

This time, Factory 82 arranged for him to work in the 404 workshop. The original intention was to let him provide advice to the engineers of local machine tool companies. But the old man insisted on the factory not to disclose his true identity, saying only that he was a retired worker who was rehired. The old man’s idea is that he has been out of technical positions for many years and his knowledge is a bit outdated. If he works with engineers with the title of expert or consultant, it may cause some interference to others.

He disguised himself as an overzealous old janitor and watched the engineers at work. He saw some problems, but he did not come forward to communicate with the engineers in person. Instead, he told several apprentices in the factory what he had learned, and asked those apprentices to communicate with the engineers.

These apprentices of Zhao Jinquan are all senior engineers of Factory 82. Guan Yong and others naturally attach great importance to their presence. They often lament the high technical level of Factory 82. These senior engineers just go to the workshop. After wandering around, I was able to discover such profound issues, and the opinions put forward were also very targeted, giving everyone a lot of inspiration.

Yu Xiaohui is the youngest technician in the workshop and the hardest-working one. Zhao Jinquan noticed this little girl from the beginning and decided that she was a talent. He waited patiently for Yu Xiaohui to think hard about the accuracy of domestic boring machines, until he felt that the opportunity was ripe, then he stepped forward to figure out the key to the problem.

In the following period, Zhao Jinquan began to systematically introduce the aerospace department's experience in systems engineering to Yu Xiaohui. Although Zhao Jinquan left his technical position more than ten years ago, he never stopped learning and researching. Since he is not burdened with mundane tasks, he even has a deeper technical understanding than the engineers on the front line of design.

Yu Xiaohui has solid technical skills and is very talented. With a little help from Zhao Jinquan, she understands the tricks of system engineering. She can even draw inferences from one example and ask Zhao Jinquan some questions that he himself has never thought of.

With systematic thinking, Yu Xiaohui broke away from the previous idea of ​​blindly imitating PATEO machine tools, and instead started from the final functional requirements of the machine tool, treating the machine tool as a whole, and analyzing the requirements of each functional module and each component from top to bottom. , my thoughts suddenly became clear.

After Yu Xiaohui had such a realization, she naturally wanted to report it to Xiao Wenjun. In fact, her scientific research work at Factory 82 has always received remote guidance from Xiao Wenjun. Of course, the confidentiality requirements of military industrial enterprises must be taken into account, so there is no need to go into details.

The application of systems engineering methods in China can be traced back to the 1950s. By the 1980s, there was a craze for the application of systems engineering methods in China. For a time, it was fashionable to do systems engineering in all walks of life, such as "system engineering". Papers such as "The Application of Engineering in the Catering Industry" and "Using Systems Engineering Methods to Improve University Toilet Management" are full of various journals, which can be regarded as a tasteful landscape.

The machine tool design industry has been using systems engineering methods for a long time, but most of them have only dabbled in it, covering it up with a layer of systems engineering. In fact, they just did some functional analysis, cost analysis, etc., which are more for show than actual value. . Yu Xiaohui also studied system engineering in school in the past, but when it came to specific applications, she didn't know where to start.

The aerospace department is the first department in China to use systems engineering methods, and it is also the department with the most thorough research on systems engineering. As Zhao Jinquan told Yu Xiaohui, the aerospace sector has always used imperfect components to manufacture world-class satellites and launch vehicles. Its system integration capabilities are rare in the world.

Perhaps due to the need for confidentiality, or perhaps because the technical threshold is too high, the aerospace sector’s know-how in systems engineering applications is poorly understood by the outside world. This time, in order to help the military industry department develop high-end machine tools, Yu Xiaohui came to Factory 82 and got the opportunity to learn systems engineering methods on the spot. The person who taught her these tips was a former big boss in the aerospace department, which makes people sigh at her good luck.

"Xiaohui is not stupid." Xiao Wenjun said, "She is a good person who will be rewarded. Other young people are not willing to go to Factory 82 for fear of delaying their future. Xiaohui is to repay you, so she voluntarily went to Factory 82 to remain anonymous. Now like this She deserves an opportunity."

"Why do I think you are a bit sour? How about I ask the group to issue a letter and send you to Factory 82 to learn from old Zhaotou?" Tang Zifeng said deliberately.

Xiao Wenjun scolded: "Xiaohui is my student, what should I be upset about? If I want to go to Factory 82, why do I need you to open a letter on the spot? Our letter from Tsinghua University is not as effective as the letter from your small company?" As for systems engineering methods, it is enough for Xiaohui to study with Mr. Zhao. When she comes back in the future, she will be able to take charge of her own business. I will not compete with my students for positions."

"Really? Why do I feel that after Professor Xiao became a mother, he became a little less enterprising?" Tang Zifeng said.

"Is there any?" Xiao Wenjun raised his eyebrows and looked at Tang Zifeng and asked.

Tang Zifeng nodded and said, "A little bit, right? In the past, you had to read a document when you had a meal. Now when you come back from the laboratory, you take care of your baby first, and you also take your baby out to play on weekends. It seems that you are not as homey as before. "

Xiao Wenjun smiled and said: "I'm not a homebody either. Think about it, in the past, in order to save money to buy a notebook, I went to Linhe to work as a teacher for you. Can this be considered a homebody? Xiaoxiao and Yidan both followed me. I have said that there is no end to research on technology, and children will grow up when they grow up. If we don’t spend more time with him now, when he grows up later, we want to play with him, but he won’t play with us yet.”

Having said this, she turned her attention to her son, who was sitting in the corner of the living room, playing with building blocks, with the kind smile of an old mother on her face.

"Ha, it turns out that Professor Xiao also has such an artistic side." Tang Zifeng said with a smile.

Xiao Wenjun raised his head and said: "I'm very artistic to begin with, okay! I just follow you, a vulgar person, and I become vulgar day by day."

"Alas, science students claim to be literary and artistic in front of liberal arts students, what a stale world it is..." Tang Zifeng sighed indifferently. As a liberal arts student, his reputation is somewhat unrealistic. Xiao Wenjun writes better poems than him, and his literary talents are only reflected in writing research reports.

This kind of bickering between young couples is actually the spice of life. Tang Zifeng and Xiao Wenjun are both good and bad, they have their own opinions on everything, and they understand each other very well. Tang Zifeng said that Xiao Wenjun didn't want to make progress, which was just a joke. Xiao Wenjun has made great achievements in the past few years. He is already a full professor at the age of 30 and is well-known in both academic and practical departments. If such achievements are not considered enterprising, Tang Zifeng himself can only be regarded as a person waiting to die. .

"To be honest, Zifeng, I am indeed a little dissatisfied with what I have made recently."

After telling the joke, Xiao Wenjun changed his expression to a serious one and said to Tang Zifeng.

"Why are you not satisfied?" Tang Zifeng asked.

Of these two couples, one is a technician and the other is a manager. Although Tang Zifeng is the general manager of a machine tool company, the research he did on Xiao Wenjun was basically in the dark. The documents Xiao Wenjun read, even if they were in Chinese, were like heavenly books in front of Tang Zifeng.

However, whenever Xiao Wenjun encountered some technical bottleneck, she still habitually wanted to chat with Tang Zifeng. She found that although Tang Zifeng was completely untechnical, he could sometimes inspire professionals by speaking a few layman's words. After all, everything in the world has a common truth, and the ideas of smart people are useful in any field.

Xiao Wenjun said: "The machine tool research we did in the past was said to be catching up with the international advanced level, but in fact it has always been with a catch-up mentality, that is, trying to follow the path of foreign countries and crack their technical know-how.

"This time, Xiaohui told me that General Engineer Zhao severely criticized our thinking. He said that we should not follow others, but should start from our own needs and come up with our own. system. Xiaohui said she was greatly inspired.

"I have thought about this issue as early as when I was studying for a Ph.D. But at that time, we were limited to domestic conditions, and we couldn't innovate even if we wanted to. The demand put forward by various industries is for us to imitate foreign countries, or even directly use foreign machine tools. Localization. For example, this time's 04 project, in the final analysis, is to imitate foreign machine tools, and there is not much innovation.

"But now, we are catching up closer and closer, and in some fields we are basically on par with foreign countries. At this time, if we continue to follow the original method and only think about catching up, we will not be able to go forward. Because there is no target at all. "

Tang Zifeng looked at Xiao Wenjun in surprise and said after a while: "You actually feel this way? Chief Engineer Qin told me about this problem a few days ago. He said that when we built machine tools in the past, we were doing reverse design. Now it’s time to engage in forward design. I thought I would tell you about it when I got back, but as soon as I got busy, I forgot about it.”

"Yes, that's what Uncle Qin said. We should start forward design now."

Xiao Wenjun said seriously.