The Rise of Heavy Industry 1980

"Of course, I can lend it to you, but the difficulty of the book "Finite Element Application Case Analysis" is a bit deep, and I am afraid that you will seem to have difficulties. Lou Xinci said, handing the book to Zhang Miaomiao.

"Oh, then I'll take a look first, and if I don't understand it, I won't borrow it.

Zhang Miaomiao took the book and flipped through it on the spot.

Ma Dongxue curiously leaned her head over, looked at the matrix equation throughout, and after a while, she began to feel dizzy, and shouted how could there be such a complex calculation in the world. Lou Xinci smiled slightly and gave her a few simple explanations, but Ma Dongxue was still confused by the second monk, compared with this, the exam questions in the college entrance examination were much simpler.

In the process of talking with Ma Dongxue, Lou Xinci noticed that Zhang Miaomiao had been watching quietly, and couldn't help but wonder, could this young girl really understand

? "Wang Chaoyang, come and see here, the stress analysis problem of this truss structure bridge, the finite element selected is only three degrees of freedom, won't this affect the accuracy of the calculation? The load of the bridge is 2,800 tons, which is applied to the upper surface of the bridge in a uniform manner, I think at least the displacement in the Z-axis direction cannot be omitted, right?" Zhang Miaomiao came to Wang Chaoyang with a book and asked.

"I'll take a look first. Wang Chaoyang's eyes also fell on the book.

After looking at it for about five minutes, Wang Chaoyang said: "The finite element analysis of truss structures generally should not ignore the strain in the Z-axis direction, but there is indeed a problem in this case, or there are other

assumptions, right?" Zhang Miaomiao was puzzled: "What kind of assumptions can omit the Z-axis strain variable?"

Wang Chaoyang said: "There are many kinds, such as assuming that the axial strength of the material is large enough, and it is only used to check torsion."

Zhang Miaomiao suddenly realized that she really didn't expect this.

During the conversation between the two, Lou Xinci on the side was stunned, because the problems discussed by Zhang Miaomiao and Wang Chaoyang were relatively in-depth problems in finite element calculation, and if they did not have a thorough understanding of finite element theory, they would never be able to say such things.

Lou Xinci couldn't believe that the young man and woman in front of him had such a deep understanding of the finite element theory. And just now, he also questioned whether Zhang Miaomiao could understand the book "Finite Element Application Case Analysis".

Thinking of this, Lou Xinci blushed a little, and planned to apologize to Zhang Miaomiao, but at this moment, Zhang Miaomiao and Wang Chaoyang were discussing the problem intently, and they had no time to take care of him, so Lou Xinci had to remain silent for the time being.

Wang Chaoyang and Zhang Miaomiao discussed the question just now for another twenty minutes, and you and I said a word, as if I forgot where I was. Lou Xinci was gradually attracted to the discussion between the two, and he found that the two young people not only had a thorough understanding of the finite element theory, but also had a very active thinking, and many of the problems that were thrown up had not even been considered by him before.

Because of his own experience, Lou Xinci has a special complex for mathematical theory, and after suffering a major blow, he was reduced to an ordinary high school teacher, but that complex is still there.

It's like a Go master, for some reason he can't play in black and white for a long time, and at this moment he sees other masters playing the game, he has the opportunity to watch, and the feeling is indescribable.

In this process, the only thing that hurt Ma Dongxue was Madongxue. This girl didn't understand at all, and she didn't dare to make a sound, so she could only stand aside honestly and listen to it, which was really torturous.

After more than ten minutes, Wang Chaoyang and Zhang Miaomiao's discussion ended. Zhang Miaomiao realized that she was in someone else's home, and hurriedly apologized to Lou Xinci.

"Little girl, you really understand finite elements! This is incredible!" Lou Xinci couldn't help but say.

"It's just a little bit of understanding, Mr. Lou must not say that. Zhang Miaomiao blushed.

Wang Chaoyang frowned slightly, and said: "Teacher Lou, it seems that you also understand finite elements, what is your opinion on the issue that Miao Miao and I just discussed?"

Lou Xinci said: "Your views are very novel and reasonable. At present, the finite element theory is still in the process of development and improvement, so it is correct to think no matter what. There is one key point to note, though.

Wang Chaoyang asked, "What is the key point?"

Lou Xinci said: "Theory guides practice, and then the theory is revised through practice...... This is the way to go for any applied theory.

Wang Chaoyang nodded and said, "You are very right...... Did Miao Miao hear it, Mr. Lou's suggestion to us is to combine theory with practice, why don't you ask

Mr. Lou for advice, what should we do?" Zhang Miaomiao blinked, immediately understood Wang Chaoyang's intentions, and hurriedly asked: "Mr. Lou, Wang Chaoyang and I are both engineers of the Red Star Factory, and there are currently many projects that will use finite elements, but the combination of theory and practice is not good enough, do you have any suggestions?"

This surprised Lou Xinci again:" What are you talking about, little girl, you have already used finite elements in practical projects?"

Zhang Miaomiao nodded and said, "Yes." Shafts and casting chassis, we have all used

finite element calculations...... "But the amount of finite element calculations is very large, and it is not enough to describe the amount of finite element calculations, it should be extremely large, how did you solve it?" Before Zhang Miaomiao finished speaking, Lou Xinci asked.

"By hand. Zhang Miaomiao said.

"Hand calculations ......" Lou Xinci's always calm face showed an extremely exaggerated expression, "This is incredible, hand calculations are finite elements, this is simply incredible!" "

Well, we also know it's incredible, but there is no other way, we have to calculate by hand." Zhang Miaomiao said.

Lou Xinci maintained an exaggerated expression and did not say a word for a long time.

Seeing this, Wang Chaoyang once again guessed that Lou Xinci's identity was unusual, not only proficient in finite elements, but most likely had used computer-aided analysis of finite elements. The reason is that people like Zhang Miaomiao, who have been doing manual calculations since they came into contact with finite elements, are not too surprised, and only those who have used computer-aided calculations are more aware of the astonishing amount of calculations. It seems that at the beginning, Wang Chaoyang also had this experience.

A high school teacher, a room full of books, knows coffee and finite elements, and has used computer-aided analysis...... What is Lou Xinci's identity

? Wang Chaoyang became even more curious about this cold high school teacher, and even doubted that he would not be a time-traveling party like himself, right?

Next, Lou Xinci also joined in the discussion on this example of the finite element problem, and also gave a detailed account of the key points of combining theory and practice.

After some discussion, Wang Chaoyang, Zhang Miaomiao and Lou Xinci are very clear to each other about their mastery of finite element theory.

Wang Chaoyang suddenly had an idea and said, "Teacher Lou, with your knowledge, it is too condescending to stay in high school to teach, do you want to do a project with us?"