This is the first time Zhao Guoyang has come to the technical department of Jinling Automobile Group.

Following Wang Ziqing and entering the large office of the Technical Department, Zhao Guoyang immediately gathered everyone's eyes.

"Hey, who is that young man? He looks like he has a good relationship with the chairman!" A new employee of the technical department couldn't help but whisper to inquire at the old employee next to him.

"Well, I have never seen this person before. Maybe it's a new person, right?" The old employee who was asked grabbed the "natural scroll" on his head and said with a confused look on his face.

"Come on, Lao Jia, which new employee have you seen who was sent by the chairman himself?" Another senior employee with a little thin lips curled his lips.

"Damn, then Lao Geng, who do you think he is?" "Natural Juan" asked with dissatisfaction.

The senior employee with thin lips smashed his mouth and said, "In my opinion, this must be the newly-designated secretary of the chairman. I will lead him over to get familiar with the situation!"

"Tsk, it's still a secretary!" Natural Juan said with disdain, "Which secretary, have you ever met, and can you walk side by side with the boss?"

After being "naturally curled", the senior employee with thin lips was a little dissatisfied.

He was about to tell something when he saw the vice chairman Lu Zhixing who had arrived after hearing the news, greeted him from his minister's office with a smile, and then held the young man's hand hard.

Seeing this scene, "Natural Curl" forgot to argue with "Thin Lips". She stood there stupidly, her face full of incredible expressions.

The office of the Technical Department and the Minister's Office are connected, with only a transparent glass separated from the middle.

After Lu Zhixing, Minister of the Technology Department Xia Qingshan and others, came out to greet Wang Ziqing and Zhao Guoyang, he invited them to come in and have a detailed discussion.

After entering the office and asking the chairman and Zhao Guoyang to sit down, Lu Zhixing couldn't help but say, "Researcher Zhao, we are looking forward to the stars and the moon, and finally we look forward to you."

"When Chairman Wang told me yesterday that he wanted to invite an expert to come and analyze it for us, I guess it was probably you. When I saw it today, it was true!"

Wang Ziqing couldn't help but say happily when he heard this: "Oh, I didn't expect that our Mr. Lu still has the ability to predict the future, so it's amazing!"

After hearing Chairman Wang’s joke, the few people in the office smiled.

After the greetings, Wang Ziqing explained to everyone the purpose of Zhao Guoyang.

"Comrades, I believe everyone knows why I asked Researcher Zhao to take the time to take advantage of his busy schedule today. It's just a word - to improve the body design of our passenger car."

"Everyone should know the level of Researcher Zhao, so I won't say much. If you have any questions, take this opportunity to ask quickly. After today, we don't know when we will be invited next time!"

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

He waved his hand and hurriedly said to Xia Qingshan, who was in the lower head: "Qingshan, hurry up, let me tell you about the issue we just discussed..."

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

After picking out one of them, Minister Xia asked Zhao Guoyang politely: "Researcher Zhao, you should already understand the situation."

"Now the appearance of our new model Iveco is definitely at the top level in China, but the body designed based on this appearance always seems to be a bit lacking."

Xia Qingshan pointed to the largest picture and asked in confusion: "Researcher Zhao, please see, this is the 'Deyi' body anatomy picture imported by the Apennine, which is a comparison with our Iveco."

"No matter how you look at this, you think we seem to be lower than others. We really don't understand the reason..."

A deputy director named Chen Qian from the Technical Department also said, "Yes, Researcher Zhao, in order to understand this, our company specially bought a newest model of "Dee" for comparison and analysis, but it never got the point..."

Zhao Guoyang said "yes", took the anatomical picture from Xia Qingshan's hand, and looked it carefully first.

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

With a calm expression, Zhao Guoyang leaned forward slightly and said, "Minister Xia, I have read the drawings, and I can probably guess why Mr. Wang, Mr. Lu and everyone will think that our Iveco's body is awkward."

After 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 hold Zhao Guoyang's hand and asked: "Researcher Zhao, what's going on? What's wrong with the body design of our factory?"

Zhao Guoyang did not keep it a secret. He said calmly: "Before answering your question, Mr. Lu, let me give you a brief explanation..."

Seeing everyone looking at him with a thrill of eyes, Zhao Guoyang stretched out a finger and said, "In international vehicle design, there is a principle for body design."

"That is, before designing the body, we must first clarify the overall bearing form of the body and make a load analysis."

Seeing Xia Qingshan and his two deputys looking a little confused, Zhao Guoyang smiled and explained: "I know Minister Xia, you may find it strange. You think that our Iveco is a passenger car. The overall carrying form of the body is similar to that of a sedan, and it is not as complicated as a small truck."

"However, we may have forgotten a little bit. Our car is a seven-seater and eleven-seater. Their local load divisions are definitely different from ordinary cars, and they are even more different from trucks and trucks."

"It is obviously inappropriate to design the body according to the calculation method of ordinary cars, trucks or trucks."

Hearing this, Xia Qingshan and his two deputy looked at each other and were a little surprised.

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

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

Now that Zhao Guoyang explained this, Xia Qingshan, Chen Qian and Feng Shanwei's faces were a little hot. The problem of emotions lies at the beginning of the body design.

Zhao Guoyang did not care about the shy expression on the faces of these three technical giants and continued to explain: "Then, let's use this picture to illustrate."

"Because our Iveco has not been able to perform local load analysis, everyone will find that the structural form and connection method of each beam seem to be a bit worse than that of 'de-yi'."

Zhao Guoyang pointed to the "deyi" land on the drawing to strengthen the beam: "For example, here, the 'deyi' car has two reinforcements welded, which makes the entire body structure fuller and look stronger. This is the advantage brought by the local load analysis that is done well..."

After listening to Zhao Guoyang's story, Lu Zhixing couldn't help but sigh: "It's really better to listen to your words than to read ten years of books!"

"After this analysis by Researcher Zhao, it seemed that he opened a window for us in an instant, which made us feel a sudden enlightenment!"

Xia Qingshan nodded repeatedly and echoed: "Yes, Researcher Zhao, after you explained this, our thinking is really clearer."

"However, we have to ask you about this body design and body load analysis..."

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

After a few humble sentences, Zhao Guoyang began to explain: "Because of cost and economical reasons, when designing the body structure, we should first take the lightweight structure as the criterion, and strive to achieve the rationality of the distribution of strength on the overall body."

"After determining the main load form of the vehicle 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 the passenger car, we can bending, twisting and collision as three typical load conditions that the car body is subjected to during design."

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, your computer should have a body structure diagram designed before, right? I want to make a rough modification to our Iveco on site and re-improve its body structure..."

"Yes, yes!" After hearing this, Xia Qingshan couldn't help but feel happy, and quickly jogged over and turned on the computer, leading Zhao Guoyang to sit in front of the computer.

Wang Ziqing and Lu Zhixing did not dare to be negligent at all, and stood up and followed them almost at the same time.

Seeing this, Chen Qian and Feng Shanwei hurriedly helped the two big men to move the chairs over and asked them 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 ideas to everyone.

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

"When we assume that both the acting forces act on the nodes of the structure and are distributed symmetrically on the left and right, after appropriate simplification of the node's force, we can establish a mechanical model for the vehicle body to withstand bending and torsional loads in turn."

When Zhao Guoyang spoke, his hand speed did not slow down at all. He began to build a model with a crackling sound.

After a while, Zhao Guoyang had already built the model and then explained: "We can use this model and use general mechanical methods to calculate and obtain the overall load distribution and deformation diagram of the vehicle body..."

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Chapter completed!