The Military-industrial Scientific Research System of the Academic Master Chapter 443

Chapter 443 Use good steel for a good shaft

As a senior technician from a bearing company, Zhang Xu is naturally aware of the weight of the design document in his hand.

 Designing parts according to process requirements is a basic skill in the mechanical design profession.

 The group's annual assessment of the ability level of technical personnel will have questions of similar nature.

Of course, considering the time limit for answering the questions, the difficulty is definitely incomparable.

 In fact, if he was asked to lead a design team to do this job, it would probably take a few months to complete it.

 But what about the process in between...

That will definitely require a lot of trial and error, iteration and optimization.

However, there is no such content in the design document in front of me. Instead, it is one step at a time, setting the parameters at the beginning seemingly at random, and then finishing it logically until the end.

 guess what the result was?

 Hey, he really got it right!

 And it's perfect.

If someone in the group ability level assessment saw someone hand in such an answer, Zhang Xu would most likely be directly judged as cheating.

In this case, it's either because you were lucky enough to choose the correct answer among the infinite possibilities with your eyes closed.

The smoke coming out of the ancestral graves is not enough, the ancestral graves must be burned.

Either you know the answer in advance and just write down the steps.

 In fact, even if they cheat, few people dare to do so blatantly, and it has to be done symbolically for a few rounds.

 However, the person who came up with this thing was Chang Haonan after all.

 They have already become famous in their own fields of study, so there is no need to travel thousands of miles to call these three little people over for fun.

 Zhang Xu raised his head and glanced at the other two colleagues next to him and across from him.

 From their expressions, Zhang Xu knew that everyone must be thinking the same thing now.

 I was very curious, but I didn't know how to speak for a while.

 Finally, it was Zheng Chaoqun, the technical director from Dual Axis, who first broke the silence.

Fuzhou Bearing is the big brother of China's bearing industry, and it has barely any relationship with Chang Haonan - the 16 sets of bearings used in the previous experiments were purchased from them.

"Mr. Chang, although judging from the results, there should be no problem, the design method above is indeed not in line with our...even the habits of foreign companies..."

 “It's okay if it doesn't match.”

Chang Haonan said something that was a bit difficult to pronounce.

Then, while the three of them were still stunned, they asked again:

“You must have known about the TORC Multiphysics software launched by our company, right? I remember that your three names are on the trial list.”

 The first person to react was Zhang Xu:

"Of course, our group has recently been manufacturing a large-diameter tapered roller bearing for Shengjing Heavy Machinery Group, which is used in super-large hydraulic turbines. At that time, we used this software to do structural analysis of the entire equipment. Although it was a bit confusing when I first started using it. It's too customary, and many operations require command statements, but the effect is really good.”

 Obviously, although it has not been long since the beta version was released, TORC Multiphysics, a revolutionary analysis tool, has already been applied in many industries.

 It's just that everyone's current imagination is still somewhat insufficient, or we are still in the process of learning and adapting to new tools, and it is not yet time to tap into the potential.

 It is mainly used in the fields of fluid mechanics or structural mechanics analysis.

“Have you ever thought that the functions of TORCMultiphysics can also be applied in the field of mechanical design? For example, dynamic analysis of the working state of bearings?”

Chang Haonan's words can be described as a sentence that awakens a person from a dream.

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　ifier

"Mr. Chang means that we can also use this method..." Representative Luo Zhou, who had been silent just now, asked tentatively.

However, the beautiful dream was quickly broken by Chang Haonan:

“Now, I can design it this way, but you guys probably can't.”

"Well…"

"this…"

Zhang Xu and Zheng Chaoqun scratched their heads in embarrassment.

However, we know our own business. The R&D personnel of these companies actually do not have a deep theoretical foundation. I am afraid that it is indeed difficult to do things like dynamic analysis.

“TORCHMultiphysics comes with sufficient custom interfaces, so in theory, as long as I provide you with an accurate dynamic model, you can indeed obtain the corresponding dynamic results through programming.”

Chang Haonan, who realized that he seemed to have hurt the other party's self-confidence, quickly explained:

“But this requires users to have a high level of input and output of parameters, and once an error occurs, it can easily cause unexpected damage to the source program. In the worst case, we may even need to send engineers to do operation and maintenance for you.”

"but."

 Speaking of this, Chang Haonan lightly knocked on the table:

“I hope to isolate the entire dynamic analysis and calculation process step by step, encapsulate the core modeling and solving process and transfer it to the background processing, so as to form a relatively independent tool module, which can greatly meet the professional level requirements of users. reduce."

 Zhang Xu and the other three people suddenly showed expressions of surprise.

If the bearing research and development work can be as easy and free as the design document in their hands now, then many problems can be solved easily.

However, Chang Haonan changed the subject again:

“Of course, this requires a long process, especially a large amount of actual data to optimize different bearing types and working conditions.”

　Now, all three people understood:

“So, Chang always hopes that we can take advantage of our size and provide this data?”

Zheng Chaoqun asked.

 “That's right, but it's more than that.”

Chang Haonan nodded:

"To make good bearings, it is not enough to have excellent structural design. Material handling, processing technology, even user service, and brand building must also be kept up with. After all, I am not from the machinery industry, and I have a lot of skills. For other projects, it is impossible to devote all your energy to these communication and liaison matters.”

“For example, the bearing you just saw requires better bearing steel than M50 to produce it to achieve the performance I need.”

“Better than M50, it's M50NiL…”

 The topic finally entered a category that Zhang Xu was familiar with:

“At present, the domestically produced special steels for bearings are relatively good, including Xingcheng Special Steel, Northeast Special Steel, etc. Overseas, the ones we cooperate with most are Japan's Chunakajima and Datong Steel…”

"etc…"

Chang Haonan raised his hand to interrupt him:

“The application field of my bearing is rather...special, and I don't consider importing steel from abroad.”

“Furthermore, even if the steel is imported from abroad, it still cannot meet my requirements. We must develop higher-performance bearing steel.”

 “Better than M50NiL?”

 Zhang Xu was obviously shocked by this statement:

“M50NiL is already a new steel material that SKF has only developed in recent years. We have not yet conquered the surface treatment technology from M50 to M50NiL in China, but at least there is a general direction. If the requirements are higher than this..."

He hesitated for a moment:

“I'm afraid it will be difficult to get it out in a short time.”

 “This…it doesn't matter.”

Chang Haonan leaned back on the chair with a calm look:

"You just need to report my needs to the upstream industry. Although I don't do much research on metal materials, I can still give some qualitative judgments on issues such as carburizing, nitriding, and guide surface wear. of."

 (End of this chapter)

Chapter end