"How about it, this compensation is quite satisfying, right?"

Ding Gaoheng, who was holding Erlang's legs, smiled.

Chang Haonan is still a layman after all, and he never denies this.

"I'm so satisfied, thank you for the unconditional trust in me from the organization!"

Therefore, in the face of this rocket-like promotion speed, he did not hide his joy:

At this time, it is too deliberate to hide and dress deeply.

It is understandable why it was stated that the appointment was made on 1 July 1999.

"Okay, Mr. Chang."

It's just not ingenious enough.

"The trust of the organization is also gradually increasing, and it is impossible to entrust important tasks because of one or two things alone, or the recommendation of one or two people, especially in your case, it must still be an exceptional promotion, so although the level has not been reached, it is also a central management sequence, and it must be considered holistically to make this appointment in the end."

This is especially true for the part that uses the Makarov variational principle to solve the problem of forming rigid viscoplastic materials.

The forging process group has a special position in the die forging press project team, they only joined in the middle of last year, and they are relatively independent in business, and the focus of the research is not on the die forging press equipment itself, but on how to use the new equipment to produce parts that meet the process requirements.

Hearing this, Chang Haonan hurriedly waved his hand:

"I don't have much research on your subject direction, but I have some opinions on the mathematical task of solving functional and strong nonlinear partial differential equations......"

"If my guess is correct, within three years, at the end of this year or next year, the Torch Group may be included under the Hangfa Group."

So it takes 3-4 months.

……

"In the actual calculation process, it should be difficult to find a velocity field that satisfies both the velocity boundary and the volume incompressibility condition, but the volume incompressibility condition can be introduced into the functional formula, so that it can change from a constrained functional to a new functional without constraints."

"Professor Lin, for the problem of solving the minimum value of the functional, I put forward an idea, of course, it is not guaranteed to be correct, you can try it."

Finally back to lightheartedness.

But when they end up, the equipment itself is often still under construction, so their research has always been a little out of touch with the actual production, and they are not very important before participating in the research and development of die forging presses.

The hardware installation of the die forging press body has been basically completed, but the trial production is not only to open the equipment, but also to produce a complete and usable product according to the process requirements.

Ding Gaoheng waved his hand:

"Ahem—"

"If that's the case, the look and feel of the trial production will be much better, but there may be foreigners among the visitors, so it won't be ......."

“……”

However, the new body involves several key integrated die-casting parts, a large number of titanium fasteners and a larger proportion of composite material application area, and there are certain production technical barriers for Huaxia.

As a result, the No. 803 verification machine, which was previously used to test the 9902/803 body, was produced entirely by Komsomolsk, but the test data was shared between the two parties.

While speaking, Chang Haonan had already led a group of people from the production workshop back to the process research and development center next to it, and sat down in a conference room:

"Visiting the production process is just to watch from a distance at the door of the production workshop, not to mention the control room, and even the equipment itself is impossible for them to get close.

"Then there is no problem on my side, the software and hardware of the equipment are currently normal, and the rest of the debugging work needs to wait until after driving."

"Don't put a high hat on the organization either."

"However, when our forging press is put into trial production, there should be many leaders, including big leaders, to come, and I heard that Airbus has also applied to send people to visit, many of them are experts, if it is just to produce the same workpiece as other hydraulic presses, it will not reflect the power of our equipment at all."

Including Chang Haonan, several leaders of the die forging press project team wore hard hats and walked next to the forging press as magnificent as a high-rise building, and it was Yan Yongnian who was holding an engineering drawing in his hand who spoke:

Fortunately, Chang Haonan himself is engaged in numerical calculations, and he understands the importance of process calculation very well, so he included them in the team in the middle of the project.

Chang Haonan listened very patiently to Lin Jingtang's introduction to his research.

Chang Haonan was also mixed with the aviation industry in his last life, so he naturally knows the gold content here:

"When Chief of General Staff Fu said it before, I was thinking that I might have to cool down for a while, but I didn't expect it to be ...... so soon."

"Moreover, the position given to you is a chief planner who is usually not set up separately, not a deputy general manager in charge of a certain business, and it is also due to your age, you have no experience in directly managing a super-large organization for the time being, and you need to experience more time on the Torch Group."

Lin Jingtang's expression was relaxed at first, and then dignified.

“……”

"We have now submitted a calculation application to the Institute of Computing of the Academy of Sciences, for the aircraft bulkhead that Mr. Chang just said, if the volume is not particularly exaggerated, it is expected that it will take about 3-4 months to calculate the result, and it should be possible to catch up with the National Day before the 50th anniversary of the gift......

First, the aviation power group is still only in a state of preparation, and there is only one preparatory leading group, and July 1 is the official unveiling day.

After his face changed like a marquee, he slapped his thigh sharply and let out a crisp sound:

"I didn't expect Mr. Chang to also have research on metal plastic molding...... If we had known that this was the case, we should have discussed it with you before we went into R&D......"

"From a mathematical point of view, it is equivalent to solving a functional minimum problem with volume incompressibility constraints, which is also the theoretical basis for our subsequent numerical calculations of all metal forging and forming processes."

“……”

After taking care of everything before graduation, he returned to Jiangcheng again, ready to follow up the trial production of the heavy-duty die forging press.

"In previous studies, we have found that materials that meet the rigid viscoplastic assumption obey the Mises yield criterion and its associated flow criterion during the molding process, and that the true velocity field will always minimize the total potential energy of the deformed body in all velocity fields that meet the dynamic and accommodating conditions."

"The metal plastic forming problem is actually a boundary value problem, for rigid viscoplastic materials, its boundary value problem can be described as: at a certain stage of the quasi-static deformation process, the geometry of the deformed body, the internal temperature distribution, the uneven state of deformation and the current material parameters are known, and at the same time, the velocity vector is given on the velocity plane and the surface force is given on the façade, then the solution of the problem is the solution of the stress field and velocity field that meet the basic equations of plastic mechanics and the boundary value conditions."

The second is that the team members directly under the state-owned enterprises, even from the appointment level, are still central management cadres, and it is impossible to be in charge of the work by simply installing the title of "acting" to him like the Torch Group.

Of course, the other party's solution cannot be wrong.

Chang Haonan turned his gaze to the other side:

"So...... Next, Professor Lin Jingtang Lin from the forging process group will introduce the development of the titanium alloy isothermal forging process. ”

"It's cooled down, and it's still three months before I officially take up my post."

It should be said that the idea is still relatively new.

The design of the Flanker II improved airframe, with internal number 9902/803, was completed at the beginning of the year and will be used in all subsequent Su-27 modifications produced at Plant 112 and the Komsomolsk plant.

But if you want to mass-produce the fully upgraded J-11B, then these difficulties must be overcome.

And then there was the sudden enlightenment.

Yan Yongnian put down the folder in his hand.

The results Chang Haonan has made in the past two years, even if only the non-confidential parts are taken out, are enough for at least dozens of doctors to graduate successfully.

Speaking of this, the two people facing each other laughed.

Chang Haonan nodded to indicate that he understood:

"So I've already told the 112 factory that they will send the latest structural design results, the process parameters of the rear fuselage bulkhead of a fighter jet, and we will conduct trial production, of course, if the trial production process goes well, it will soon be transferred to the official production stage."

"Don't worry about that."

"Of course, there may be many specific volume invariant conditions, such as the introduction of a penalty function should have a similar effect, so I won't repeat it......"

"Mr. Chang, according to the convention, the trial production is generally to build an ordinary C-beam or other relatively simple partition frame structure."

Lin Jingtang frowned, and found that things were not simple:

"That'...... You wrote these. ”

Ding Gaoheng said half-jokingly:

"Moreover, if you don't get your Ph.D. diploma this year, the appointment will automatically become invalid......"

It is a good thing that the city is deep, but it may not be true if it is seen that the city is deep.

The sudden appointment at the director-level did not bring much change to Chang Haonan's daily work.

Chang Haonan looked at the full page of formulas on the curtain, thought for a moment, then got up and pulled over a drawing tablet and wrote on it:

However, hearing the end, Chang Haonan still frowned slightly.

Lin Jingtang nodded, then connected the laptop he was carrying to the projector and began to introduce his research results:

So I have to wait until I officially graduate.

The only exception is that the Russian side cannot sell models that use this second-generation airframe to the countries surrounding China.

Compared with the first-generation improved fuselage that only reinforces the structure and adds a pair of wing inner hardpoints, it is basically equivalent to resetting the structural design of the aircraft on the premise of retaining the aerodynamic shape unchanged, adapting to lighter radars such as 1493 or Beetle through a more reasonable weight reduction design, and reserving a retractable air refueling device and fuel supply line at the nose position to support the installation of fuel and liquid cooling equipment.

"For example, if you introduce a Lagrange multiplier λ into the functional 27 above your PPT, you can get a new functional that is easy to change."

Chang Haonan put down the pen in his hand:

"I just came up with it while listening to your introduction...... A little shallow, throwing bricks to lead jade, throwing bricks to lead jade......"

(End of chapter)