Ye Qing hands, holding a round of synthetic light steel, in the partial magnification function of the data glasses, and material data analysis. Ye Qing can clearly see the circular light steel, which starts from the fracture and is surrounded by a layer of sapphire coarse particles.

The surface of the light steel originally had a layer of black anti-rust paint, and now the anti-rust paint is neatly peeled off. In the field of leaf green, these coarse particles are composed of numerous tiny cracks.

This is the most intuitive manifestation of metal fatigue, its internal structure has been destroyed by external forces, and the strength is seriously reduced.

The cause of metal fatigue is caused by repeated pressure from external forces. In many countries, there has been a fleet of air crashes caused by metal fatigue.

A metal is placed there and there is no external force that will not be damaged.

The light steel structure bracket of the skylight is still, and the bulb cable is not moving.

Then the only thing that can happen is the moving parts, only the water circulation is cold air conditioning.

At intervals of the water circulation air conditioner, an extension is fixed at the top, and the pumping motor inside rotates at a high speed.

"It should be the pumping motor in the air conditioner extension, causing the metal of the bracket and the outer bracket to resonate, causing the bracket to fatigue quickly." Ye Qing's current data glasses are transparent glass, and no one can see any abnormalities.

"How do you judge?" Chief designer Xiao Jun looked nervously at Ye Qing.

“I want to prove that this is very simple.” Ye Qing took off her glasses and pointed to another exhibition hall channel: “The consistency of industrial products is very high. You can check the pipe supports that have not been dropped, if those The strength of the joint is also significantly reduced, which proves to be the resonance caused by the motor running."

“It’s very possible!” The representative manager of the Deli Group took a sneak peek and then shot the thigh: “Since our design has no problems, resonance is the biggest cause of the accident.”

Several competent air-conditioning maintenance personnel, with scaffolding, quickly ran to the next good extension. Proficiency in removing the extension, and then intercepting the light steel structure connecting the extension and the pipeline.

Without the instrument, just by clamping the round light steel with pliers and doing the bending test, it is very obvious that the two round light steels are extremely weak.

"It is caused by resonance." The representative manager said with some anxiety: "No, our motor products are absolutely qualified. The concentricity of the bearings is much higher than the national standard. It is impossible to have abnormal vibration."

"It is not an abnormal vibration, it is the natural vibration of the motor." Ye Qing explained to a group of people who were confused. "If the motor vibrates abnormally, you can judge it by listening to the sound."

“But when the motor is running and the fan is rotated, there is a noticeable natural shock.”

"Commonly speaking, it is normal vibration, the sound sounds very soft, and the vibration amplitude is very small. But there will still be high-frequency vibration. If this vibration frequency is close to the resonance frequency of the external fixed material, resonance will occur."

“It is obvious that the resonance flatness of these light steel structures is very close to the natural vibration frequency of the motor, and severe metal fatigue will occur.”

"I don't know if you have seen the movie that Death has come. There is a lens inside. It is said that the air conditioner extension and the connection have resonated. As a result, the entire air conditioner extension collapsed."

“I understand.” The representative manager suddenly became cheerful: “This is a coincidence, a coincidence of the day. Our products also have resonance tests, but the natural vibration can not be eliminated. I did not expect to have a resonance with this light steel material.”

"Simple ~"

“It’s very simple to solve. We just need to adjust the speed of the motor to avoid resonance.”

"What about the structure of the stent that has already caused damage?" Chief designer Xiao Jun, full of resentment, made a lot of staff standing in various exhibition areas to watch the lively staff, and suddenly fled.

Yes~

There has already been a corner of the pipeline and the extension has fallen, which means that all air-conditioned extensions in the exhibition hall may fall.

Who is the chance to fight for his own life?

"Temporarily enclose the exhibition area, the staff left, and then the hidden dangers were resolved and then entered." The district chief Wen Xiaowei immediately issued an order, as long as the personnel did not have casualties, everything has room for recovery.

Without any hesitation, the crowd ran out.

Some seem to go from spring to summer, the sky has a certain insulation function, and the cool air inside has not completely dispersed.

At this moment, I suddenly ran outside the sky, and I felt so hot.

"Thank you, thank you very much for your doubts. You have saved a lot of precious time for us." Standing outside the sky, the district governor Wen Xiaowei's nervous look eased a lot, holding Ye Qing's hands and shaking.

“Where is your showroom? If the showroom can be restored, I will let the staff, advertise your company on the giant screen projection TV.”

"Z Zone No. 42 is the heavy animal rework at the innermost corner." Ye Qing was somewhat embarrassed to scratch his head and reported his company's exhibition area.

That is the corner of the last row, there is no worse position than that.

“The Great Beast Heavy Industry!” District Chief Wen Xiaowei erected his thumb and praised: “There is a very discouraged name.”

"Young people, you must be mechanical, and still very proficient." Chief designer Xiao Jun, also expressed his appreciation: "We do architectural design, will also consider the resonance test of wind, the United States The Tacoma Strait Bridge was the most painful example."

"But this is indoors, something that is still, who will spend a lot of money on resonance testing?"

"Even if you do, you can't measure it. Before we all shirked responsibility, I thought it was the weight limit caused by icing."

"I didn't expect that the problem occurred in the motor resonance." Chief designer Xiao Jun said with some swearing: "This is completely knowledge of two fields..."

"Don't discuss these first." District Chief Wen Xiaowei said: "The seriousness of the matter, I think everyone understands. Since the structure of the canopy has already occurred, we must hurry and solve it within one day."

"Otherwise, at 9 o'clock tomorrow morning, the exhibition could not be held, and our Chinese people's faces were lost."

"Mr. Xiao, you are a well-known designer in China. This sky is also from the hands of your studio. You can help give your ideas."

Chief designer Xiao Jun nodded solemnly and fell into a heavy thought. During this period, he made a round trip and made several phone calls to ask the manufacturers responsible for the production of the light steel materials.

After the phone was finished, he let the accompanying assistant enter, and used a simple method to test the strength of the main structure of the sky.

When the information was returned one by one, the chief designer Xiao Jun’s forehead was slowly covered with sweat.

Going back and forth, I kept my eyebrows thinking from time to time, suddenly realized, and then shook my head in disappointment.

Finally, the chief designer Xiao Jun said: "There is no other way. This batch of light steel is a special customized non-standard product. I just asked the manufacturer. They don't have a lot of stock, and even the repaired corner is not enough. ""

"In fact, even if there is enough inventory, it is not urgent. These light steel structure construction teams will enter the market one month in advance and will be welded and assembled."

"There is only one way to do this."

"What is the solution?" District Chief Wen Xiaowei, wiped the sweat on his forehead, nervously asked.

"The main structure of the sky curtain is intact, the corner is collapsed, we directly put the plastic version on it, and the air conditioner outside the drop will not be installed."

"The damaged exhibition area will also be repaired immediately."

"And then..." Chief designer Xiao Jun said sadly: "At the bottom of all air-conditioned extensions, the vertical steel pipe, the bracket to support the air-conditioner, and the weight of the pipe."

“There are three hundred steel pipes, and there is no time. The steel pipes should be thick enough to support the air conditioner and the weight of the bracket.”

"Dangdang~", the district governor heard an official next to Xiao Wei, the crystal tea cup in his hand did not hold steady, and his hand fell to the ground.

He is the head of the Expo Park. Hearing the country's leading designer solution, the director feels that he will not have to go out in the future, he will be jokes by everyone.

An international large-scale exhibition, in the good guys' exhibition hall, all the enterprise exhibition areas, and several major aisles in the center, even three hundred steel pipes.

How does this make people go, how does each company show its products?

Take the S shape around the pillar?

Those domestic and foreign journalists, and the managers of a large group of foreign companies, seeing this, what do you think?

In the unlikely event that there are a few girls who play performance art, what should I do to ridicule the exhibition and hold the pole dancing with poles?

The Expo Park is an internationally renowned park. The director has seen a lot of young men and women with different thinking and made various artistic performances in the park.

"Mr. Xiao, you..." The district head Wen Xiaowei was really anxious at this time, and even the title changed: "You can think of another way, please. If you really install the pillar, then the exhibition..."

The chief designer Xiao Jun shook his head in a powerless way. The design of the sky was from the hands of their studios. If there is a way, why doesn’t he want to save the studio’s reputation?

"We... can only be used as a support for the steel pipe, made a fuss." Chief designer Xiao Jun trembled to wipe off the sweat on his face, lost: "The steel pipe is a must, we are willing to be jokes, It also does not expose guests to the risk of being embarrassed at any time."

"Three hundred steel pipes, not too small. There may be places where the position of the steel pipe can be placed ingeniously. For example, in the aisle, we can use the gate-shaped steel pipe to make room for the aisle."

"Doing a gate-shaped steel pipe, we don't know if we can get it in time..."

"Then look for the art studio to make some decorations, or pull flowers..."

"I...please ask the mayor." District chief Wen Xiaowei took a deep breath and walked over to make a phone call.

Five minutes later, the district chief Wen Xiaowei walked slowly and his face was pale.

"Action, Mr. Xiao, you are responsible for the location design of the steel pipe, try not to hinder the pedestrians, and the exhibition activities of various companies."

“I contacted the park department and let them operate the engine plant and immediately process the steel pipe.”

“Right, what is the height and diameter of the steel pipe?”

"The height is two meters, the diameter is about eight centimeters, the wall thickness is eight millimeters. The top is welded with a plane to support the pipe, and the bottom is fixed..."

“The time is too short, the bottom fixing is estimated to only weld the plate, and then the four corners are punched with nuts.”

The district chief Wen Xiaowei’s face was white again. This design gave him a feeling of building a community site.

He was trying to nod and promised, and his eyes did not intend to scan the nearby Ye Qing, who was watching the bustle.

"Mr. Ye, Mr. Ye." District Chief Wen Xiaowei quickly greeted Ye Qing and walked to Ye Qing: "Mr. Ye, you are engaged in heavy machinery manufacturing. You can see if there is any way to make the support column more beautiful. ?"

"At least... don't weld the platform at the bottom and fix it with a nut."

"One day, only segmented processing can be used. The base is made of a hollow steel pipe. The steel pipe is sealed with a steel piece at one end. The hole is fixed on the ground with a nut and finally welded to the upper support steel pipe."

"The steel pipe is to be decorated anyway, no one will see the weld."

“Well...” Ye Qing thought: “The steel pipe can be made of DN80 galvanized pipe, and the thickness and diameter are all in line. This steel pipe is very common in the market and is very convenient to process. Several processing plants are processing at the same time. It is easy to make three hundred quantities."

Nowadays, the mayor Wen Xiaowei is only reluctant, and can only use the advice of the chief designer Xiao Jun.

Yes, what is enough for one day?

There is no way to contact the well-known art studios to make art decorations for steel pipes.

It is better to have a joke than an accident, and the exhibition can be held smoothly.

"Mr. Ye, you have been smashed equipment, we will compensate for the statistics after the exhibition. Please forgive me, now we are really burned, no time."

"Understanding understanding, we as a company participating in the exhibition, of course, we must cooperate with the exhibition."

Finalizing the solution, the district head Wen Xiaowei, and the chief designer Xiao Jun, they immediately got busy.

The business people who watched the bustle also followed, and it was noon at noon. The weather was getting hotter and hotter. It was like a sauna.

Ye Qing also followed and went out. It was almost lunch time. Ye Qing was ready to bring Xu Xiaohu to go out to have a good meal and work hard.

Out of the huge exhibition hall, Ye Qing took out a three-dimensional camera from the car and took a picture of this huge exhibition hall.

The exterior of the pavilion is very modern and artistic, and the exterior is designed by world-renowned architects. According to a three-dimensional drawing of it, you can also make a small mini pavilion when you go back and use it in the office.

There is still some time left for lunch, and Ye Qing’s photo will suddenly stop like a photographer.

Because there are many strange buildings in the Expo Park.

Even those greening trees, all kinds of landscape trees, are carefully crafted by gardening masters.

For example, the green tree in front of Ye Qing’s eyes, the Huangshan Mountain on the rockery, greets the pines, which is like a broken stone, the roots are entrenched, and the green is tall and straight.

The 3D camera can take pictures of any object and instantly create a perfect 3D drawing. After finishing several buildings, Ye Qing locked the focal length of the three-dimensional camera on the welcoming pine.

The metal smelting center has a three-dimensional forging function. Whether it is a hull or other more complicated irregular shapes, it can be melted very quickly as long as there are drawings.

These landscape trees are unique in shape. If you use a smelting center to make a few trees, you will be very very forced in your own factory.

There is a wonderful art and craftsmanship in the province that has a reputation for more than three hundred years.

Iron painting!

Take the hammer as a pen and use iron as the ink to paint.

In the hall of the Huaxia Auditorium, there is a huge iron painting "Welcome Pine". Numerous foreign politicians have left a group photo in front of this iron picture, which also makes the welcoming guest a symbol of Huaxiaping friendship.

but!

Who has seen the pure metal welcoming pine made of titanium alloy?

Ye Qing wants to ask the world, who has seen it?

I haven't seen it, there is a factory in the Beast Heavy Industry.

Ye Qing cheerfully pressed the shutter, and then a perfect three-dimensional welcoming pine drawing appeared in the infinite drawing memory card of the three-dimensional camera.

Then, after finishing the leaf green of Yingkesong, the body shape was instantly fixed.

It was like being hit by the thunder of nine.

The welcoming pine in front of him suddenly made Ye Qing think of a very, very important issue.

in case……

If you use a welcoming pine that is made entirely of metal, it is the pillar of the air-conditioning duct in the exhibition hall.

What is this concept?

The core purpose of the International Science and Technology Exhibition is technological innovation, and technology changes life.

Then look at the structure of the entire exhibition hall, from air conditioning, to the sky, to the light steel structure bracket, all around the theme of technological innovation.

If you take the poles that are the mainstay of the pole dancing, you will lose the bad street. Switch to this kind of unheard of all, see the magical industrial technology that you have never seen before.

That is not the biggest highlight of this exhibition, the biggest hot spot and selling point?

According to the plan, three hundred broken steel columns are needed. It is impossible to hang some ribbons, pull flowers, and the same day as the wedding room to cover up the steel column of the laughing man.

Changed to welcoming pine, Luo Hansong, Ziwei tree, these valuable landscape trees with strong ornamental value?

On a tree, there are umbrella-like bifurcations that can be used as fulcrums to support those air-conditioning ducts.

If properly designed, a tree can completely replace dozens or even more steel pipes to complete the supporting work. The position of the installation is more arbitrary, and it is exactly where it is placed.

Imagine that when people enter the exhibition hall, the first thing they see is not the welcome words, nor the small advertisements of various companies.

It is a stunning tree of trees that is purely made of steel.

Isn't this a combination of technology and art?

Isn't this possible to carry forward our traditional culture and make foreigners stunned and completely dumbfounded?

If aluminum alloy is used to build the branches of trees, then these heat conduction properties are far superior to the dense branches of iron, and can also fully absorb the air conditioning to discharge cold air and conduct it to the whole tree.

In the hottest summer, what kind of cool experience will it be under this tree?