The technical department of Jinling Automobile Group Company, Zhao Guoyang is still the first time to come.

followed Wang Ziqing into the large office of the technology department, and Zhao Guoyang immediately gathered everyone's eyes.

"Hey, who is that young man, he seems to have a good relationship with the chairman!" a new employee in the technical department couldn't help but whisper to the old employee next to him.

"Hmm, I haven't seen this person before, maybe it's a newcomer, right?" the old employee who was asked scratched the "natural roll" on his head and said with a blank face.

"Come on, Lao Jia, which new employee have you seen who was personally sent by the chairman?" said another senior employee with a thin lips.

"Damn, what kind of person do you say he is?" asked "Nature Roll" with an unconvinced face.

The thin-lipped senior employee smashed his mouth and said, "In my opinion, this must be the chairman's newly recruited secretary, leading him over to familiarize himself with the situation!"

"Cut, what about the secretary!" said with a disdainful face, "Which secretary have you ever seen that can walk side by side with the boss?"

was stalked by "natural volume", and the senior employees with thin lips were a little unconvinced.

As soon as he wanted to distinguish something, he saw Lu Zhixing, the vice chairman of the board of directors who rushed over after hearing the news, greeted him from his minister's office with a smile, and then shook the young man's hand hard.

Seeing this scene, "Natural Roll" also forgot to raise the bar with "Thin Lips", and stood stunned on the spot, with an unbelievable look on his face.

The office of the Technical Department and the Minister's office are connected, with only a transparent glass in between.

Lu Zhixing took Xia Qingshan, Minister of Technology, and others, and after coming out to greet Wang Ziqing and Zhao Guoyang, he invited the two to talk in detail.

After entering the office and inviting the chairman and Zhao Guoyang to sit down, Lu Zhixing couldn't help but speak: "Researcher Zhao, we are looking forward to the stars and the moon, and we finally looked forward to you." ”

"Yesterday, Chairman Wang told me that when he wanted to invite an expert to come over and analyze for us, I guessed that it was you, and when I looked at it today, it was right!"

Wang Ziqing couldn't help but be happy when he heard this: "Yo, I didn't expect that our Mr. Lu still has the ability of an unpredictable prophet, amazing!"

After listening to Chairman Wang's ridicule, several people in the office were all stunned.

After greetings, Wang Ziqing explained to everyone Zhao Guoyang's intention.

"Comrades, I think everyone knows what Researcher Zhao is here for today. In a word, in order to improve the body design of our passenger car. ”

"Everyone should know the level of Researcher Zhao, so I won't say more. If you have any questions, take this opportunity to ask, after today, we don't know when we can invite him next time!"

After Wang Ziqing finished saying this, Lu Zhixing's expression changed.

He waved his hand and hurriedly said to Xia Qingshan, who was next to him: "Qingshan, hurry up, tell Researcher Zhao about the issue we just discussed......

Xia Qingshan let out a "hmm", took a stack of printed drawings from his deputy, and put them on the coffee table where everyone was sitting.

Picking out one of them, Minister Xia politely asked Zhao Guoyang: "Researcher Zhao, you should already know something about the situation." ”

"Now the appearance of our new model Iveco has definitely reached the domestic first-class level, but the body designed according to this appearance always seems to be a little lacking. ”

Xia Qingshan pointed to the largest picture and asked puzzledly: "Researcher Zhao, please see, this is the anatomy of the 'proud' body imported from the Apennines, and it is a comparison with our Iveco." ”

"No matter how you look at this, I feel that we seem to be a step lower than others. We really don't understand why......"

A deputy minister named Chen Qian of the technical department also followed and said: "Yes, researcher Zhao, in order to understand this matter, our company also specially purchased the latest 'proud' for comparative analysis, but it has never been able to grasp the essentials......"

Zhao Guoyang let out a "hmm", took the anatomical diagram from Xia Qingshan's hand, and read it carefully first.

After a few moments, he almost figured out what was going on.

Putting this drawing to the side with an indifferent expression, Zhao Guoyang leaned forward slightly and said: "Minister Xia, I have already seen the drawings, and I can probably guess why Mr. Wang, Mr. Lu and everyone think that our Iveco body is awkward." ”

Hearing that Zhao Guoyang found the problem so quickly, the eyes of a group of people lit up instantly.

Lu Zhixing was the most anxious, and couldn't help but take Zhao Guoyang's hand and ask: "Researcher Zhao, what's going on?

Zhao Guoyang didn't sell it, he said calmly: "Before answering your question, Mr. Lu, let's give you a brief explanation first......

Seeing everyone looking at him, Zhao Guoyang stretched out a finger and said: "In international vehicle design, there is a criterion for body design. ”

"That is, before the body design, it is necessary to first clarify the overall bearing form of the body and make a load analysis on it. ”

Seeing that Xia Qingshan and his two deputies were slightly confused, Zhao Guoyang explained with a smile: "I know Minister Xia, you may find it strange that our Iveco is a passenger car, and the overall bearing form of the body is similar to that of a sedan, not as complicated as a small truck." ”

"However, we may have forgotten something. Our car is two kinds of seven seats and eleven seats, and their local load divisions are definitely different from ordinary cars, and trucks and trucks are even more different. ”

"It's obviously not appropriate to design the body just according to the general calculation method of cars, trucks or trucks. ”

Hearing this, Xia Qingshan and his two deputies looked at each other, and they were a little stunned.

Indeed, after they got Zhao Guoyang's exterior design concept drawing, they immediately began to design the body based on their past experience.

Although it only took a short time for them to design the body of this passenger car, they ignored one of the important keys.

Now that Zhao Guoyang explained this, Xia Qingshan, Chen Qian, and Feng Shanwei were a little hot on their faces, and the problem of feelings was at the beginning of this body design.

Zhao Guoyang didn't care about the shyness on the faces of the three giants of technology, and continued to explain: "Then, let's take this picture as an example. ”

"Our Iveco, because the local load analysis is not in place, you will find that the structural form and connection method of each beam seem to be a little less interesting than 'proud'. ”

Zhao Guoyang pointed to the "proud" site reinforcement beam on the drawing and said: "For example, here, the 'proud' car has two more ribs, which makes the structure of the entire body full and looks stronger." This is the advantage of local load analysis in place......"

After listening to Zhao Guoyang's remarks, Lu Zhixing couldn't help but sigh with emotion: "It's really 'better to listen to your words than to read a book for ten years'!"

"Researcher Zhao's analysis seems to have opened a window for us in an instant, making us feel suddenly enlightened!"

Xia Qingshan nodded again and again and agreed: "Yes, Researcher Zhao, when you explain like this, our thinking is really much clearer. ”

"However, we still have to ask you a thing or two about this body design and body load analysis......

Zhao Guoyang smiled and waved his hand and said, "Hey, Minister Xia, you are too polite, this is what I should do." ”

After a few words of humility, Zhao Guoyang began to explain: "Because of the cost and economy and other reasons, when we design the body structure, we should first take the lightweight structure as the criterion, and strive to achieve the rationality of the strength distribution in the body as a whole." ”

"After determining the main load form of the body and understanding the load transfer method, we can choose a reasonable calculation method. ”

Zhao Guoyang pointed to the two cars on the drawings and said: "Because our car is a passenger car, according to the characteristics of passenger cars, we can use bending, torsion and collision as three typical load conditions for the body during the design to specifically analyze." ”

Speaking of this, Zhao Guoyang paused, looked around, and his eyes fell on the computer in the middle of the office and said: "Minister Xia, you should have the body structure diagram designed before on this computer, right?" I want to give us a rough change to this Iveco on the spot, and re-improve its body structure......

"Yes, yes!" Hearing this, Xia Qingshan couldn't help but be a little overjoyed, and hurriedly trotted over to turn on the computer, leading Zhao Guoyang to sit in front of the computer.

Wang Ziqing and Lu Zhixing didn't dare to slack off, and almost at the same time stood up and followed.

Seeing this, Chen Qian and Feng Shanwei hurriedly helped the two bigwigs move the chairs over and asked the two to sit down on both sides of Zhao Guoyang.

Seeing the familiar operation interface of the CAD program in front of him, Zhao Guoyang quickly gestured while explaining his thoughts to everyone.

"According to the structural characteristics of the passenger car, when we design it, we can see it as a frame structure composed of thin-walled beams and thin plates. ”

"When it is assumed that the forces are all acting on the joints of the structure and are symmetrically distributed on the left and right, after appropriately simplifying the forces on the joints, we can establish the mechanical model of the bending load and torsional load of the body in turn. ”

When Zhao Guoyang spoke, the speed of his hand did not slow down in the slightest, crackling, and he began to build a model.

After a while, Zhao Guoyang had already established the model, and then explained: "Let's use this model and use general mechanical methods to calculate and obtain the load distribution and deformation diagram of the whole body ......."

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