Chapter 232 The Celebration Party of the Three Gates! (2-in-1)

When Liu Hongbo received the task of "helping Chang Haonan complete the compilation of a finite element method course textbook" about a week later, he agreed with almost no psychological fluctuations.

Already used to it.

Besides, now it's just to help his fellow juniors. They have the same seniority, but the age gap is a little bigger, so it's not embarrassing.

He was just very lucky that Du Yishan came out halfway and snatched Chang Haonan away from him——

If there hadn't been such a thing, now he would be a scapegoat for his own students.

Oh, he can't even be considered his student, because Chang Haonan is still technically studying for an undergraduate degree.

In short, if that were the case, he would probably have no shame in continuing to work in the education world.

As for what made Chang Haonan write a book, put his name on it and reach the top of his life...

Liu Hongbo never thought about it in that direction.

It's not just a matter of academic ethics.

But before anyone does this kind of thing, he must weigh the other person's weight——

Look at the circle Chang Haonan is in contact with now.

It can be said that there are scholars who talk and laugh, but there are no idle people in the world.

Even if such a person becomes his graduate student, it is absolutely impossible for him to be manipulated.

Don’t you see that even Du Yishan rarely asks about Chang Haonan’s projects now...

At least the former has paved a lot of roads with his own influence.

If it had been Liu Hongbo, he would have written the words "morality and unworthy" on his forehead.

It will only embarrass both teachers and students.

So it’s better to be brothers.

He still has this bit of self-awareness.

"call……"

Liu Hongbo, who returned to the office, spread the two-page fax he got back from Tang Lintian on the table and breathed a sigh of relief.

What was written on the paper was the outline and basic ideas that Chang Haonan had determined for that textbook.

"Start with vectors?"

He read it over and over again, but still felt that the content inside seemed a bit too lengthy.

At least the contents of the first three chapters should have been covered in the basic courses of the first and second year undergraduates, so there seems to be no need to repeat them here.

After thinking for a moment, Liu Hongbo picked up the two pieces of paper on the table, walked out of the office quickly, and came to his laboratory.

It was already the fifteenth day of the first lunar month. Although there were still a few days before the school officially registered and started, many students had already returned to school early.

"Teacher Liu."

The three graduate students who were busy in the laboratory saw the instructor who suddenly walked in. They said hello casually and continued their work.

As a relatively young professor, Liu Hongbo himself often appears in the laboratory, so the students are not surprised.

But the purpose of his coming today is quite special.

"I have a question to test you."

Liu Hongbo came to the blackboard at the other end of the laboratory, picked up a piece of chalk from the side, and wrote a two-dimensional matrix ζ = [1, -1, -1, 1] on the blackboard.

When he turned around, he saw three confused expressions.

"Teacher Liu, this is to..."

The three students who came back early to start experiments are all senior masters or doctoral students, and they are already a little unfamiliar with the exam format.

What's more, Liu Hongbo has never played this trick in the past.

"Suppose that in plane stress analysis, the stress measured at a point in the non-primed coordinate system is the ζ on the blackboard. Now you are asked to establish its components in the primed coordinate system. What will you do?"

The three students looked at each other for a few seconds, but this kind of question obviously didn't stump them, and one of them quickly wrote the answer on the blackboard.

ζ'=PζP(T)

Where P=[cosθ, sinθ, -sinθ, cosθ].

"very good."

Liu Hongbo nodded with satisfaction:

"Then let's change to a slightly more complicated question."

He erased the things on the blackboard and drew a beam fixed to the wall.

This is a beam with a bending stiffness of EI. The load on the unit length is P. The spring stiffness at the other end of the beam is k. Now it is necessary to use four finite difference nodes to establish the control equation of the beam response.

This time, no one was able to provide results quickly.

In fact, from the looks in the eyes of the three students, Liu Hongbo knew that they should be very confused about this issue.

After a while, the boy who just wrote the answer said with confusion:

"Teacher Liu, is there any connection between these two questions?"

"they……"

At this time, Liu Hongbo suddenly realized that he himself could not give a systematic answer in words.

"Simply put, the first question can be seen as the theoretical basis for solving the second question."

"..."

This explanation is obviously unsatisfactory.

"Teacher, I remember you said in class before that the theoretical basis for airplanes to fly is Newton's third law proposed in 1687, but it was not until 1903 that humans built the first airplane..."

There was obviously some dissatisfaction in the other person's tone.

"you're right……"

Liu Hongbo stared at the blackboard for a few seconds, then patted the student next to him on the shoulder:

"It's okay, you can continue your work."

After saying that, he strode out of the laboratory under three inexplicable looks.

In fact, what Liu Hongbo raised was just the simplest linear analysis problem in rigid body mechanics.

If these students are given enough time, they should not be unable to solve it.

But the reactions of the three of them just now showed that for an inexperienced person, the distance between basic mathematical knowledge and practical engineering applications is not as close as he had imagined before.

In other words, Chang Haonan was right in designing the knowledge structure of the textbook.

The first three chapters are not useless.

The density of knowledge in university classrooms is often very staggering, and there is not much time for students to slowly think and react. If the textbooks are written in a simpler way, it will easily lead to students getting stuck somewhere and never following the course again. The situation of not thinking in class.

So there is a saying -

In math class, I bent down to pick up a pen. When I raised my head again, it was as if I was listening to heavenly scriptures.

Perhaps it is because compared to other people who compile textbooks, Chang Haonan himself is still in his student days, so he grasps these pain points more accurately.

Liu Hongbo shook his head and sighed as he walked:

"MD, that's outrageous."

He originally planned to continue to subcontract layers of work and leave those basic contents to his graduate students to write.

But now I have changed my mind.

Obviously, Chang Haonan, a junior fellow student, can be embraced not only in the academic world, but also in the education world.

So he decided to write the book himself.

"Just think of it as a way to experience Professor Chang's educational ideas in advance..."

Liu Hongbo told himself this as he opened the office door.

In fact, Chang Haonan originally planned to take advantage of his time in Haojing to write out part of the framework before collaborating with Liu Hongbo.

This will make it easier for the other party to understand your overall ideas in this book, and save a lot of effort in later revisions.

But God is not as good as man, so he just wrote the beginning part, and one night he received a call from Ding Gaoheng.

"Director Ding?"

"Xiao Chang, pack your personal belongings immediately and return to the capital with me tomorrow morning."

"Back to the capital?"

Chang Haonan was a little confused by what the other party said:

"But aren't the negotiations here still over?"

"Now the most important things have been basically decided. Moreover, the things in the capital are much more important. You must be present."

Ding Gaoheng did not explicitly state the purpose of his trip to Beijing on the phone, but it sounded obviously very urgent.

Therefore, Chang Haonan subconsciously thought that there was another technical problem that he needed:

"Okay, let me prepare. Also, can you tell me what kind of work it is? I can also prepare in advance."

After hearing this answer, Ding Gaoheng burst into hearty laughter:

"Why, could the call I made just be to send you a mission?"

Chang Haonan rolled his eyes and said, isn't it...

Of course he wouldn't say it out loud yet.

"Isn't this a conditioned reflex? When I was celebrating the New Year at home at the beginning of last month, I answered a phone call around this time after dinner, and was called to Hao Jing's side."

"This time... it's an unexpected situation, an unexpected situation..."

Ding Gaoheng was somewhat embarrassed when he talked about this matter. After all, it was he who recommended Chang Haonan as a technical consultant to the negotiating delegation.

At first, they only wanted to let the latter play some check-in role, but no one expected that it would actually open up a whole new world for China's civil aviation industry.

At least the regional airliners built in the future will carry both Chinese and European certifications. As long as their technical level is excellent, they will not worry about lack of sales.

Brand effect is like this. Even if it is exactly the same thing, it will be more easily recognized if it has a xx standard brand.

In terms of the aviation industry, Europe and the United States are the first countries, and naturally they have the most recognition.

From this perspective, Chang Haonan can be said to be the hero of the entire Chinese aviation industry this time.

"Don't worry, it's a good thing to call you this time. You'll know after you come back to the capital with me tomorrow."

Ding Gaoheng said comfortingly to the other end of the phone while thinking about what benefits he should offer to compete with the National Science and Technology Commission for people.

Of course Chang Haonan doesn’t really have any objections:

"In that case, I'll wait for the good things Director Ding will bring tomorrow!"

…

The person responsible for taking Ding Gaoheng and Chang Haonan back from Haojing was a Boeing 737-300 of the 34th Air Division.

What surprised the latter was that their plane landed directly at the airport in the western suburbs of Beijing.

Since the T0 terminal of Beijing Capital International Airport was opened in 1958, it no longer undertakes any civil aviation business and has become a specialized military airport.

Chang Haonan had never done anything earth-shattering in his previous life. Although he had done a lot of work after his rebirth, the time was still too short after all. In fact, he had never seen any big events, so the call he received last night was obviously inappropriate. After the ordinary phone call, he actually thought about many possibilities.

However, judging from the scene of picking up the plane in front of him, it seemed that the battle this time was much bigger than he expected.

Not to mention the BJ2020 and other common cars in the distance at the front and rear of the motorcade, but parked in the middle were several exquisitely crafted black luxury cars with square heads and square heads.

Even if Chang Haonan doesn't know much about cars, he still knows them.

Nissan Duke King V6.

It is considered the last generation of Nissan's luxury car.

Of course, there are even Mercedes-Benz S600s in the army these days, but they will not appear here, but in the hands of some military companies.

And according to the course of history, there is not much time left before "no business is allowed". Many military companies have already begun the process of liquidation or divestiture.

In short, in this year, the specifications of the fleet composed of several Dukes and Kings are already quite good.

After getting off the plane, Chang Haonan followed Ding Gaoheng and got into a vehicle in the motorcade led by several staff members wearing casual suits.

"Director Ding, we are going..."

After getting in the car, Chang Haonan looked at the luxurious accessories inside the car with some restraint.

This kind of treatment was the first time in his two lives combined, so you can't blame him for not letting go.

Having already arrived here, Ding Gaoheng naturally had nothing to hide. After adjusting his clothes, he replied simply:

"Jingshan Front Street."

Chang Haonan was stunned.

This place name is quite unfamiliar to him who came back from more than 20 years ago.

Ding Gaoheng next to him also saw that he failed to understand, so he filled in another explanation:

"It's just three doors."

"hiss……"

Now Chang Haonan knew—

It is now early March 1997, and the Bayi Building at No. 7 Fuxing Road, which he was familiar with in his previous life, has just broken ground at this time, so the military Wei's office is still at Sanmen.

Thinking of this, Chang Haonan felt his heart beat several times unsatisfactorily.

The highest-level meeting he had attended before was the internal commendation meeting of the Aerodynamics Research and Development Center. Now he had a big event in one go. To say he was not excited at all would be a lie.

Just kidding, how many people have never even entered the county in their entire lives.

What's more, this time he was picked up by a motorcade.

"So there's a meeting?"

Ding Gaoheng nodded:

"Yes, a small-scale commendation and celebration meeting. Of course, the semi-public statement within the army is to celebrate the official installation of the J-8C aircraft. You will know the more specific situation when you arrive."

Chang Haonan did not continue to speak, but turned to look at the roadside buildings passing quickly outside the car window to calm down his somewhat fluctuating emotions.

The commissioning of just one type of aircraft will not lead to a celebration party at the three-seat gate, even if the J-10 is built.

And it has only been three months since the small-scale trial installation of batch 00. According to the training frequency of the aviation force in the 1990s, the troops may not even be able to fully understand the various functions of the aircraft, and it should not be officially put into service so soon. .

However, since this statement is semi-public, it should not be a complete fabrication. It must also be related to the J-8C model.

In other words, in the three months since he left Shengjing, something terrible might have happened!