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Chapter 915, speed is undoubtedly the top priority

In the office, Zhao Guoyang and Sandro had a very happy chat.

The two quickly reached an agreement on salary and benefits.

The treatment Zhao Guoyang gave to the graduate students brought by Sandro also received high recognition from the other party.

After he finished speaking, Sandro promised on the spot that he could bring at least seven students to "Xingtai International".

This result made Zhao Guoyang very satisfied.

You know, the seven people Sandro brought are all top students in industrial design at McGill University.

As long as you give a little guidance, you will have the opportunity to become one of the world's top designers in the future.

Such people can attract seven at once, which is a very surprising result for any company that lives by design.

After confirming the time when Sandro and the doctors came to China, Zhao Guoyang mentioned the "high-speed railway project" he had at his hands and exchanged some technical issues with him.

Zhao Guoyang didn't want to take the exam, but just wanted to give Professor Sandro a research direction so that he could start preparing in the near future.

After listening to Zhao Guoyang's story, Sandro nodded relievedly and said, "I know the high-speed railway project."

"Although we do not have similar railway systems in Canada, we have learned about France's 'TGV railway system' and German'ICE railway system'. We are not unfamiliar with this!"

Upon hearing this, Zhao Guoyang smiled and reached out and made a "please" gesture and said, "Mr. Sandro knows something about this, that's the best thing."

"I have a team dedicated to the high-speed railway system. In this regard, our "Xingtai International" side has specially studied it. In addition, I may have to go to "Bombardier" to discuss cooperation in the next two days."

"I hope you can talk about the design of trains traveling on high-speed railways and related knowledge..."

Sandro said "hmm" and nodded gently: "According to technology, high-speed railway trains can be decomposed into several parts: head shape, bogie, body, traction control system, etc. These parts are designed separately, and finally combined into one train."

Zhao Guoyang certainly also understood these basic analyses.

He nodded and then started to speak: "Mr. Sandra is right. This high-speed railway train is not much different from ordinary trains in structure. The only difference is its appearance."

"In this regard, I wonder if Mr. Sandro has any outstanding opinions?"

After hearing Zhao Guoyang's understatement, Sandro knew that the other party was very knowledgeable about it.

He quickly said, "Mr. Zhao, it's a coincidence. I used to assign homework to students as a topic before!"

"This is how I analyzed it for everyone! In terms of designing high-speed trains, I plan to use segmented design to arrange the tasks."

"The head design is left to the head design supervisor; the body design is designed by the body supervisor and his department; the bogie is designed by a special steering department; and the traction control system and power are designed by another power department."

Sandro said happily: "After this distribution continues, there will be no obstacles to bulls parallelism among several departments. This is very helpful for improving the overall design efficiency."

After listening to Sandro's statement, Isabella and Olivia on the side nodded in agreement.

However, the teacher is the teacher. In just a few words, the design of the high-speed railway train is broken down into a meticulous detail.

If the teacher really uses the design method, the design of the entire train part will be very clear.

The design tasks of each department will not be too heavy.

Compared to Isabella, Olivia's repeated nods, Zhao Guoyang seemed much calmer.

He touched his chin, as if he wanted to speak but stopped.

After noticing his actions, Sandro knew that Chairman Zhao had some different opinions.

He smiled disconcertedly and said, "Mr. Zhao, what I just said is just a consideration for assigning homework and has not been really practiced. There must be some incomplete details. If you have any tips, just say it out!"

After Sandro finished speaking, Zhao Guoyang nodded relievedly and said, "Mr. Sandro is so quick to speak, it's admirable!"

"Actually, I don't think there is any big problem with your idea. This kind of detailed design is indeed very beneficial to improving design efficiency."

"But I think the categories that Professor Sandro just mentioned are not detailed enough. One or two departments should be added to better reflect that what we designed is a train used for 'high-speed railway'."

Sandro had heard Isabella mention it before, saying that Chairman Zhao was very technically accomplished.

Of course, Sandro would not doubt his own students.

However, Sandro is not sure about how powerful Chairman Zhao is.

At this moment, after hearing the other party's words, he said with interest: "Mr. Zhao, what you said makes sense, please continue."

Zhao Guoyang nodded with a "hum" and continued to speak: "Professor Sandro, that's what I think. Because we designed a high-speed train, its speed is undoubtedly the top priority."

"If you want to achieve such a speed, in addition to the appearance, it is necessary to be different from ordinary trains. The weight, air resistance, and ride comfort at high speed are all issues that our designers need to consider."

"And just relying on the three departments you just classified, you cannot include all these things!"

After Zhao Guoyang said this, Olivia, who was standing beside him, asked in confusion: "Mr. Zhao, what you just said should also be included in the power design department, right?"

"Aren't weight and air resistance all factors that affect power output? There's nothing special about this!"

After Olivia finished speaking, Zhao Guoyang shook his head solemnly and explained: "Olivia, you were wrong! If you were designing an ordinary train, what you said can be summarized as the power design department for consideration."

"But in the design of high-speed trains, such sorting of divisions will not work!"

"Why?" Olivia said curiously.

Zhao Guoyang stretched out two fingers and explained: "Two reasons! First of all, we should all know why Professor Sandro just divided the front and body of the front of the car into two departments? It's very simple, it's because of the importance of the front of the high-speed train!"

"The fronts of ordinary trains are mostly ordinary and square. However, if used on high-speed trains, this design will undoubtedly be out of order."

Listening to Zhao Guoyang's analysis, Isabella said curiously: "Mr. Zhao, I am not very proficient in train design, but I have personally taken the 'TGV high-speed railway' in France."

"It is indeed as you said, the head shape of this 'TGV high-speed railway' train is very special. I have never understood the reason before... Now I am even more confused when I hear you say this!"

After hearing Isabella's words, Zhao Guoyang smiled and said, "It's nothing to understand. The front design of the "TGV high-speed railway" train in France is definitely not for the sake of beautiful shape."

"To give a simple example, let's think about what kind of experience it would be like to walk in a strong wind?"

When Zhao Qian heard this, she said, "Walking in the strong wind is just a step forward, right? I really can't remember other experiences..."

Zhao Guoyang smiled at Zhao Qian and reminded: "Imagine if you move forward in the strong wind, will your waist bend down? Because this will make it much less difficult for you to move forward!"

"Ah? Yes, it seems that's true!" Zhao Qian said with her mouth covering her mouth.

Zhao Guoyang waved his hand at her, then said, "So, the design of the head of the high-speed train is not for the appearance, but for the train to run better. This includes speed and comfort."

"We all should know that the biggest obstacle for objects running at high speeds in motion is not their own weight, but the air!"

"Ah, I understand this, it's air resistance!" Zhao Qian raised her hand and said.

Zhao Guoyang said "yes", and then said: "Yes, air resistance is the main way for air to negatively affect high-speed trains. Under normal circumstances, when the speed of the train is increased by 3 times, the air resistance will be 9 times the original."

"Of course, it's not only the air resistance, but also the impact of air on high-speed trains, but also aerodynamic noise, tunnel micro-bar pressure waves, train surface pressure waves and many other aspects."

"In fact, under high-speed operation, the power output of the train is almost consumed in the confrontation with air. Therefore, when we design, it is a very important topic to minimize the impact of air."

After listening to Zhao Guoyang's story, everyone suddenly realized it.

Indeed, if there is only one power design department in the design department, it is not enough to include all these detailed topics.

This requires one or two additional departments to specifically study the impact of air on trains.

Sandro, who had not spoken out, couldn't help but sigh at this time: "Mr. Zhao, I am convinced of you. Your understanding of high-speed train design is so deep!"

Zhao Guoyang smiled humbly and continued: "In addition to the air influence of the train itself, we cannot ignore the changes in the airflow generated when the two trains intersect."

"In fact, the designed speed of international high-speed trains is almost at a speed of nearly 350 kilometers, which is equivalent to the speed of a low-speed cruise of the aircraft..."

———————
Chapter completed!
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