In the office, looking at the model that Zhao Guoyang had set up at his fingertips, Xia Qingshan and his two deputies were stunned.
"Researcher Zhao, if we find that there is too much deformation or too much load in the local area in the process of calculation, then what should we do" Xia Qingshan suddenly remembered something and hurriedly asked.
Zhao Guoyang gestured and signaled Minister Xia to be calm.
Then, he circled the frame support beam and roof beam on the original body structure diagram twice, and patiently explained.
"Minister Xia, when the problem you mentioned arises, you need to change the cross-sectional form of the local beam.
In other words, the amount of deformation and the magnitude of stress are adjusted by changing the cross-section coefficient. ” "For example, the two places I drew on the map, we might as well make some local changes."
When Zhao Guoyang was explaining, he had already drawn on the CAD.
Seeing that Zhao Guoyang changed the roof beams and longitudinal beams that originally looked hard and bulky to a hollow cross-sectional shape, not only Xia Qingshan and his two deputies, but even Wang Ziqing and Lu Zhixing, the two bigwigs, were a little stunned.
After coughing, Wang Ziqing opened his mouth and asked, "That, Guoyang, I'll interrupt."
If the two beams you change become hollow, will it affect the strength?"
Zhao Guoyang paused slightly, smiled and said, "Mr.
Wang, you can rest assured, there will be no problems you are worried about." ” "These two beams now look hollow and tube-shaped, but when they were designed, they had to be filled with more material."
Speaking of this, Zhao Guoyang explained casually: "In order to effectively protect the safety of the occupants, we should conform to the principle of soft at both ends and hard in the middle when designing the body structure of the whole vehicle. ” "It is necessary to ensure that when a longitudinal collision occurs, the front or rear of the body absorbs more than 80% of the collision energy.
The shape and structure of these two beams are now modified based on this principle. ” Wang Ziqing was explained by Zhao Guoyang, and nodded again and again, quite convinced.
Xia Qingshan seemed to have some things to figure out about Zhao Guoyang's modification, so he couldn't help but ask: "Researcher Zhao, I have no doubt about the change of your shape." ” "Just by adjusting the design of this connecting beam, can you really ensure that the front and rear parts of the body can absorb enough energy in the event of a collision?"
Zhao Guoyang waved his hand when he heard this: "This is necessary, generally speaking, when the vehicle has a longitudinal collision, 70% of the energy is absorbed by the body longitudinal beam. ” "I have now changed the shape of the longitudinal beam so that it becomes a hollow and padded structure, and in the event of a collision, I can rely on the local deformation of this piece to absorb energy, thereby reducing the possibility of deformation of the middle occupant."
Chen Qian on the side seemed to have figured out something, and slapped his head hard and said: "I understand, Researcher Zhao, you designed the top beam and the longitudinal beam to be hollow, so that when it collides, it can more easily rely on the local bending or local wrinkles of the longitudinal beam to improve its ability to absorb energy." ” Zhao Guoyang said "um", nodded and said, "That's right, that's the truth." ” The few people here are all people with a solid professional foundation.
After Zhao Guoyang's in-depth explanation, they can naturally understand.
After seeing Zhao Guoyang gradually complete the design of the two beams, Wang Ziqing and Lu Zhixing's eyes were full of colorful ripples.
After a few minutes, Zhao Guoyang slowly removed his hand from the keyboard.
He pointed to the design of the two beams that had been completed, turned back to Xia Qingshan and said, "Minister Xia, the appearance structure of this longitudinal beam and the top beam is probably like this. ” "In the future, your technical department only needs to improve it a little and then check its carrying capacity, and then it will be fine."
Xia Qingshan's eyes were firmly fixed on Zhao Guoyang's new design at this time, and he only woke up after being reminded by him.
"Ah, okay, thank you so much for Researcher Zhao's help, thank you."
Zhao Guoyang waved his hand disappreciatively, glanced at the design of the front of the body, and reminded: "In addition, Minister Xia." space for deformation. ” "Compared to the proud series of the Apennines, our Iveco is obviously not enough at this point" When Zhao Guoyang said this, Feng Shanwei on the side hurriedly picked up his own drawings and compared them with the "proud" appearance drawings.
Indeed, although the total length of the two cars is about the same, in terms of the reserved space in the front and rear of the body, it is obviously "proud" and superior.
After seeing the drawings, everyone suddenly realized: the reason why I have always felt that my car is not round and free enough in structure, and I have not paid attention to the reserved space, which is also an important reason.
Just when everyone was sighing, Zhao Guoyang spent a few more strokes on the position of the CAD wheel cover, and then stood up and gave up the position controlled by the computer.
Looking at the strokes drawn by Zhao Guoyang with "thick dot lines", Lu Zhixing asked with some puzzlement: "Researcher Zhao, is there any problem with the design of the wheel cover?"
Zhao Guoyang smiled and waved his hand and said, "No, no, Mr.
Lu, you misunderstood."
The design of this piece is generally no problem, but in terms of material selection, it can be better. ” "After all, when a car collides, it also has 30% of its energy absorbed by the wheel cover.
Therefore, its connection with the floor and longitudinal beams needs to be particularly strengthened."
Listening to Zhao Guoyang's reminder, Xia Qingshan signaled Chen Qian to reorganize it in the past according to his ideas, until Zhao Guoyang smiled and nodded, and then stopped.
Seeing the reorganized body structure diagram, Zhao Guoyang held his chin and looked at it a few times and said: "Well, after these changes, basically some small defects in the previous body design should be made up, and I can be regarded as worthy of my mission."
When Zhao Guoyang said this, everyone nodded again and again in agreement.
Wang Ziqing patted him on the shoulder affectionately and said, "Not only that, but I see that the beauty of the body has also improved a lot compared to before."
Guoyang, thank you."
Lu Zhixing looked at Zhao Guoyang with blazing eyes for a long time, shook his head and sighed: "It's a pity, our factory is one step late, and now we can't dig Researcher Zhao."
"Yes, if Zhao Yanxue joins our company, I would rather give him a hand" Xia Qingshan also said very seriously.
Chen Qian and Feng Shanwei glanced at each other, and they also agreed with Minister Xia's views.
Wang Ziqing got the final reply from Zhao Guoyang early in the morning, of course he knew that he couldn't do anything.
Therefore, when everyone sighed, he waved his hand and opened the topic and said: "Okay, let's not embarrass Guoyang."
After all, he is still a special researcher of our Jinling Automobile Group Company. ” "However, Guoyang, you have to be diligent in our company in the future.
If you had come earlier, our first generation of Iveco might have sold even more than it is now."
In the face of this "threat" from Mr.
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Wang, Zhao Guoyang could only scratch his head and agreed.
In just an hour, Zhao Guoyang solved the problem that Jinling Automobile Group Company had not been able to solve for two or three months.
Such a result made Lu Zhixing and Xia Qingshan a little unexpected, and also increased their admiration for this "Researcher Zhao" by a few points.
As for Wang Ziqing, he is the one who knows Zhao Guoyang the most on the spot.
If he hadn't firmly believed in Zhao Guoyang's ability, he would not have forced Zhao Guoyang to make this trip.
"Well, the problem that has been entangled in our company for so long has finally been solved.
We don't have anything to thank Guoyang, so let's invite him to dinner," Wang Ziqing said happily.
When Lu Zhixing heard this, he immediately stroked his palms and laughed in agreement.
He turned his head to look at Xia Qingshan, Chen Qian, and Feng Shanwei: "Minister Xia, Chen Qian, Shanwei, at noon today, the three of you have to pay respects to our researcher Zhao and thank him, do you know?"
"Understand, Mr.
Lu, don't worry, the three of us will definitely accompany Researcher Zhao" Xia Qingshan smiled heartily and responded again and again.
Seeing that it was still early for lunch, Wang Ziqing discussed with Lu Zhixing and invited Zhao Guoyang to go to the company's newly built test site.
The test site also belongs to the technical department, and Xia Qingshan, the minister, naturally has to accompany him.
He explained a few words to Chen Qian and Feng Shanwei, and then led the way.
After coming to the test site, Zhao Guoyang looked at the somewhat humble venue and was a little silent.
Indeed, the test site of Jinling Automobile Group Company is much worse than that of Songqi Group, both in terms of scale and advanced facilities.
Of course, it was even worse than the test site of the "Volkswagen Latin American Automobile Company" that he saw in São Paulo.
Wang Ziqing, who was on the side, also saw the discoloration on Zhao Guoyang's face, so he said calmly: "Guoyang, why, do you think the scale of our company's test site is too small?"
Glancing at Lu Zhixing, who was surprised, Wang Ziqing explained to him: "Mr.
Lu, you may not know that Guoyang has not only visited Songqi Group, but also visited the Latin American branch of Volkswagen. ” "So, in our test site, he naturally doesn't like it."
Hearing this, Lu Zhixing was stunned: "Ah, that's no wonder" Listening to Chairman Wang's teasing words, Zhao Guoyang hurriedly waved his hand, indicating that he had no such intention.
After all, Wang Ziqing once served as the leader of the Provincial Machinery Working Committee, and took this opportunity to sigh: "Speaking of which, in the past, because of the difficult conditions in our country, the road test of the whole vehicle was basically simple because of the ugliness, and the use of the existing national highway and domestic natural conditions to carry out the car test. ” "However, after visiting the test site of Songqi Group, my thinking has changed a little":