The first users to receive the trial version of the software were undoubtedly the Beijing Airlines University and the Institute of Computing Technology of the Chinese Academy of Sciences.

Of course, for the sake of the company's formalization process and the perfection of the legal level, it is still necessary to have an authorization document to be sent through the postal service.

After all, the postmark is an important basis for judging the period (period) and service in civil activities, especially in the process of contract formation.

This is especially important in this era when there is no electronic signing.

It's just that after all, it was delivered in the same city, and the priority was high, so the two parties received a paper license to use it on the second day after the trial version was released.

In fact, they don't even require any installation – the TORCH Multiphysics software itself was born in the computer room of the Beijing Airlines and Institute of Computing Technology.

However, the entry into force of this license document means that researchers in both institutions can use the new software in the process of publishing their results or completing projects.

Subsequently, a little later, several central enterprises and universities with headquarters in the system of science and technology commissions, such as the Aviation Industry Corporation and the Aerospace Corporation, also received the same permit.

According to the scheme set by Chang Haonan, the users of the upgraded version will receive the installation CD of the software about two to three weeks before the users of the professional version, which is mainly due to the fact that the former are basically classified units in the system, and if there are any flaws in the legal provisions or software design, the impact caused by them being the first to discover them is relatively controllable.

As a price, the projects in the hands of these units are basically long-term and costly, so in general, it is not possible to get complete feedback on the use of the situation in a very short period of time.

But there's always something special about everything.

Almost at the same time that the relevant units began to receive the TORCH Multiphysics software installation package in batches, the Bingcheng University of Technology.

Prof. Li Zhihong's research group has been troubled by the project in their hands for a long time.

Since 1992, they have been working with their counterparts from several other universities on high-precision helical bevel gear machining.

This is a very common part in high-end aerospace, equipment manufacturing and other fields, such as Chang Haonan is concentrating on preparing for the turbofan 10 engine and heavy-duty die forging press, which require a large number of high-precision spiral bevel gears.

Due to the complex shape and structure of the space, its processing difficulty is quite high, and for a long time it can only be completed by CNC gear grinding machines imported from Gleason in the United States and Klingnberg in Germany.

However, the function of imported gear grinding machine is limited, and many kinds of products are restricted from being used for manufacturing, not to mention, if there is a problem in production, the data must be transmitted to the machine tool manufacturer, and the parameters will be adjusted by foreign technicians.

It is equivalent to a manufacturer in Huaxia who spent 15 million to 20 million yuan to buy a machine, but only worked as an operator for foreign suppliers, not only could not produce the most scarce parts, but also could not even access the knowledge in related fields.

It's just a blatant bully!

Therefore, it is imperative to acquire your own digital precision machining capabilities.

In the first half of this year, the research on high-precision spiral bevel gears, which was originally aimed at high-precision spiral bevel gears, was included in the scope of the Seiko plan and expanded into a broader "new principle and new method for digital precision machining of high-performance complex surfaces".

After obtaining new resources and funding, Professor Li Zhihong finally set out to change the last step of the traditional three-step process of "gear milling-heat treatment-tooth grinding" to gear grinding, and trial-produced a finished product that met the requirements in a laboratory environment, but it was never able to transfer to industrial production.

The most difficult part of the process is that the gear grinding process is coordinated with the heat treatment process to correct the deformation errors generated in the latter process, but the grinding process itself will generate a large amount of grinding heat, which affects the correction accuracy and the subsequent stress relief process.

Foreign manufacturers have been deeply engaged in this field for dozens or even hundreds of years, each has a set of fairly accurate grinding processing models, even so, for different specific products, still need to carry out a large number of tests to determine the processing parameters.

However, domestic research has only started for less than 20 years, and it is difficult to catch up in a short period of time.

"Wang Jie."

Li Zhihong took off his glasses, rubbed the top of his head, which had already begun to lose his hair a little, and called a student next to him who was immersed in drawing.

"You send this new process request to the processing plant."

Wang Jie, who was on the other side of the room, put down the pencil and compass in his hand, walked over and took a thick stack of documents from the professor's hand, opened them and looked at them twice.

"Have you adjusted the empirical parameters in the grinding force calculation formula again?"

Even Wang Jie, who has only joined the research group for about a year, is already familiar with this.

Li Zhihong didn't say anything, just nodded.

"Alas......"

Wang Jie sighed incomprehensibly as he put the documents in his hand into his schoolbag.

Engaged in process research and development projects, it is said that the tall is indeed high, and it is often tens of millions of research and development funds, and the usual contact is also the country's heavy weapons with a high level of secret, forcing it to be full

But on the other hand, most of the work they usually do can be summed up as parameter adjustment, trial production, sample analysis, re-adjustment of parameters, and re-trial production......

Even if it's an ordinary high school student, it's no problem.

After the initial freshness stage, Wang Jie will still handle his work dutifully, but he will inevitably have doubts about his own worth.

They have also tried to theoretically calculate the heat treatment and grinding process in numerical calculations to repeat the number of iterations of the process, but because the temperature, force and calculation boundaries of the workpiece are constantly changing throughout the machining process, the final results they calculate are simply not the same as the actual situation.

This is certainly not unexpected -

If the results could be calculated so easily, several of the top companies in the industry would have used them a long time ago, rather than continuing to rely on the empirical formulas passed down from their ancestors.

But this is really difficult for late-developing countries, especially for a late-developing country like China, whose economic level is not yet high.

"Don't be discouraged, in fact, our progress in the past six months, whether compared with the past or compared with foreign counterparts, has been very fast."

Li Zhihong put his glasses back on and enlightened his students.

"Teacher, I know this, I just think it's with my expected scientific research...... It's not quite the same. ”

"Alas...... We are engaged in machinery manufacturing is ......"

In the middle of the sentence, the door to the office room was pushed open.

The one who rushed in was the senior brother and little boss of the research group, Zheng Shudong.

"Mr. Li, the school's computing center said that they received a new numerical simulation software today, which may be able to solve our problem."

As soon as the words fell, Li Zhihong and Wang Jie stared straight at him.

Especially the latter.

I just complained about the gap between reality and ideals, and now there is an opportunity to realize my ideals.

"Tell me more?"

As a mentor, Li Zhihong is much more stable after all, but his eyes also reveal excitement.

"A few days ago, Beijing Airlines University and the Institute of Computing Technology of the Academy of Sciences jointly engaged in a software development project, mainly to solve the problem of strong nonlinearity in the process of multi-field coincidence simulation."

The other two people in the room glanced at each other.

Obviously, this is simply drowsy for them to send pillows.

"Let's go, let's see."

The group of three walked briskly away from the laboratory, and Professor Li Hongzhi even forgot to buckle the cap of his pen.

……

When they arrived at the computer room, there were already several acquaintances.

"Lao Li, when this software was delivered to me today, the first thing that came to mind was you, come and see this, the instructions and brochures sent by the torch company together."

Li Zhihong squeezed through the crowd and got in front of the computer.

“TORCH Multiphysics…… The name is pretty straightforward. ”

He pushed his glasses, and although his tone was flat, his gaze was locked to the lines of text on the screen.

The previous large paragraph of text is really basic for professional researchers, but Li Zhihong is a little embarrassed to turn directly to the part he is most interested in.

"Teacher, you can directly select chapters here."

Wang Jie's stunned speech quickly helped his mentor find the step.

"What's the hurry, others may still want to see it......"

Although Li Zhihong said this, his body was very honest and good, and he directly clicked into the section of "force-heat coupling".

"The temperature field is a collection of spatial and temporal distributions of grinding temperatures caused by various heat sources......

He quickly threw himself into it.

After about twenty minutes, the three of them looked at each other a few times.

"Isn't this a little closer to the scientific research you expected?"

The first to speak was naturally Li Zhihong.

He lifted his glasses and asked Wang Jie.

"Close, too close."

The latter couldn't stop nodding.

Seeing this, the director of the supercomputing center next to him finally spoke:

"Actually, I originally wanted to invite the director of the development of this software, who is also the permanent director of the Beijing Airlines Supercomputing Center, to give a lecture, but after the phone call, the other side said that he was not in school recently, so it didn't work out."

"It doesn't matter."

Li Zhihong shook his head:

"The application of this software is not difficult, even if you are not a computer professional, it is not difficult to master, as for the specific effect...... Of course, you still need to test to know. ”

After speaking, he looked at the other party with inquiring eyes.

The director apparently understood his overtones:

"No problem, in the next few months of this year, your research group's supercomputing allocation time will be doubled!"

The next chapter has been reviewed, wait a minute

(End of chapter)