Chapter 261 Two methods
Xiao Yi warned himself in his heart that it would be better to have less bad taste in the future, otherwise, like now, the "bad taste" would accidentally come to him.
For the time being, he waved his hand and said, "Iris is not in a hurry, let me see the specific information of your materials first."
Hearing what Xiao Yi said, Wang Changhong smiled and said, "Okay, since Chief Designer Xiao is concerned about our problems, let's go and take a look first."
Xiao Yi nodded slightly unnaturally to avoid being noticed.
Then, Wang Changhong took him to the sample room inside.
Along the way, Wang Changhong also said, "Let me also tell you by the way, the main problems we are encountering now."
Xiao Yi waved his hand and said, "No need for now."
"When we were in the car just now, Luo Mingya told me about the compatibility issues you encountered."
"The main problem you encountered is that the thermal expansion coefficient of the material is not well compatible with the materials in other parts, and the high-temperature creep performance also has some incompatibility issues, right?"
Wang Changhong shook his head helplessly. "It seems that girl has revealed everything about us."
But what can this say?
After all, when they got on the bus, they were the ones who kicked Luo Mingya out and asked her to sit in the same car with Xiao Yi.
Then he smiled bitterly and said, "Yes, that's basically the situation."
"It's embarrassing to say that when we first developed this material, it was almost a few years ago, and we had a good celebration."
"As a result, we only saw some basic properties of this new titanium-aluminum alloy, but we ignored the key compatibility issues."
"Compared with another material we have used, this titanium-aluminum alloy is actually better in terms of thermal expansion coefficient and high-temperature creep performance. The most important thing is that the temperature it can withstand has increased by nearly 200 degrees! It has reached an operating temperature of 1,200 degrees."
"For turbine blades, 200 degrees is a huge improvement. I believe Chief Designer Xiao also knows this."
"However, the problem is that when this material works at a temperature of 1,200 degrees for a long time, its thermal expansion is even greater than before."
"And that's when things went wrong."
Wang Changhong sighed.
"Think about it, can we give up easily at an operating temperature of 1,200 degrees? Especially with our updated cooling system, it can directly bring the final vortex front temperature to 1,700 degrees. By then, our Project H-20 can be greatly improved in terms of maximum cruising speed and bomb load."
"So we have further studied for several years and want to coordinate on this, but as of now..."
"It's difficult!"
"Difficult, difficult, difficult!"
Chief Master Wang sighed deeply.
Xiao Yi also shook his head with emotion.
That's the trouble with materials research.
The performance of this new material has indeed been greatly improved, but when used at the highest performance, problems like this will occur.
As for lowering the operating temperature of this new material?
Although this method can solve the problem, the problem is, wouldn't the effort they spent on studying this material be greatly reduced?
Therefore, Wang Changhong are completely unwilling to waste the performance of this material, so they have been striving for excellence for several years.
But unfortunately, they couldn't change the structure of the engine itself just for this matter.
After all, the structure of the engine itself also serves the stealth performance of the entire Project H-20 bomber. Once the engine structure is changed, it means that the overall stealth layout has to be changed, and the stealth effect may not meet the original requirements.
Even if it is achieved, the aerodynamic layout will change again, and then the whole body will have to reconsider the aerodynamic layout, which will be even more troublesome.
It can truly be said that one move affects the whole body.
Of course, the main difficulty is that this is a stealth strategic bomber capable of supersonic cruise.
The Americans don't have it, the Russians don't have it.
The existence of difficulties is inevitable.
"Okay, here we are."
When I arrived at the door of a room, the sign hanging above also said the words "Sample Room".
Walking inside, Li Zhenhai next to me walked forward and found a sample of their new titanium aluminum alloy.
"Then here's everything you need to know about this sample."
He took out another stack of A4 paper from the side.
Xiao Yi took them one by one, and then looked at the relevant information.
The name of this new titanium-aluminum alloy is TA1203, and 1203 represents its highest operating temperature.
Being able to withstand such working temperatures for a long time already represents its strong performance.
You know, the melting point of titanium is only 1668 degrees Celsius, and the melting point of aluminum is only 660 degrees Celsius.
Looking at this information, Xiao Yi's face showed a look of thought.
Of course, in the eyes of Wang Changhong, this is the case, but in fact he directly entered the state of Material Mastery.
He began to learn various internal information about this piece of material through Material Mastery.
Now that Material Mastery has been upgraded, he can directly start simulating the material even if he does not need detailed data of the material.
However, with detailed data on these materials, the simulation can naturally be more accurate.
Soon, after basically understanding the internal structure of this material, he exited the state of Material Mastery.
"Well, I already have some information about this material." Xiao Yi said, "Is there any other more detailed information? For example, the structure of the engine, and some data from your previous experiments?"
"Everything is available."
Wang Changhong said, and then took Xiao Yi to obtain various other information and data, including the overall appearance and structure of Project H-20, as well as videos.
Looking at this information, Xiao Yi also became quite interested.
What boy is not interested in fighter bombers and the like?
Back then, he was extremely surprised when he saw the promotional video about Project H-20.
And Project H-20's sci-fi appearance also surprised him.
I never thought that one day I would be able to personally participate in the development of Project H-20.
Of course, if you really want to do the math, he has already participated in Project H-20 before.
This must mention the MHT-1, a wave-absorbing material that he accidentally created.
Then it attracted another professor named Chen Weidong from Institute 603. This professor Chen Weidong was the leader of the weapons and design team of Institute 603. He took the MHT-1 away at that time and said that he would participate in the stealth layout of Project H-20.
It was also the first time he participated in the design of Project H-20.
Of course, at that time we could only say that we were indirectly involved, but now we are directly involved.
After getting this information, Xiao Yi began to analyze it.
Of course, as he thought before, this issue of material compatibility is really not a particularly difficult problem for him.
Because, with his BUFF upgraded to lv7, the two skills Material Mastery and Perfect Engineering can be used together.
Therefore, after reading these materials, he could directly simulate the entire Project H-20 engine through these two skills.
And he did so.
While looking at this information, I kept completely sketching it out in my mind.
Until finally, the complete structure was completely revealed in front of him.
Sophisticated and full of aesthetics.
The combination of the turbines allows anyone to imagine what kind of power they will show when they are all spinning.
Unfortunately, only Xiao Yi can see this kind of scenery.
Of course, it is precisely because he can see such an intuitive scene that he can solve such compatibility issues well.
With a thought in his heart, the engine built by Perfect Engineering began to run.
The turbine starts to rotate, and then a powerful attraction is generated from the air intake.
Xiao Yi directly provides air to the simulation space, so the air is directly sucked into the air inlet.
After entering the air inlet, it enters the compressor. The air is compressed step by step, and the pressure and temperature continue to increase. Then the high-pressure air enters the combustion chamber, mixes with the injected fuel and ignites and burns, forming gas, and the temperature reaches 1800 degrees Celsius.
Then, the high-temperature and high-pressure gas enters the turbine and drives the turbine blades to rotate at high speed.
Finally, these gases enter the tail nozzle, where the gas is further expanded and accelerated, and finally ejected from the nozzle at supersonic speed, thus providing powerful propulsion.
This brand new engine can easily provide more than 20 tons of thrust!
This is even greater than the thrust of WS-15 engine, which is already in service with J-20.
However, as Xiao Yi gradually enlarged, the overall size entered a sufficiently microscopic state, and then he could see that as the temperature continued to rise, the blade material gradually expanded and began to cause interference and friction problems with other parts such as the casing.
And this problem will have a high probability of causing it to malfunction!
This is absolutely fatal.
Sure enough, as Xiao Yi accelerated the simulation speed, finally, probably when the engine was working for ten minutes, the friction force endured by the material finally reached the limit.
With a "click", a crack instantly covered the surface of the entire receiver. However, the support did not last long before it exploded with a "bang".
This is what happened in the simulation space of Xiao Yi. If it happened in reality, even if it was just an experiment, something big would happen.
"The problem is indeed quite serious..."
Xiao Yi nodded slightly.
But then, in the simulation space, time began to go back, and finally it was fixed at the time when interference friction began to occur.
Then, the horizon began to zoom in. With the joint activation of the two abilities, Xiao Yi was able to see the microscopic details of TA1203 at this time.
The key question now is how to find a way to further reduce the thermal expansion coefficient of this material, or a way to prevent interference and friction between them.
Only in this way can problems be avoided.
After thinking for a moment, Xiao Yi's eyes suddenly lit up.
He already has the method.
However, how to implement it specifically still requires some thinking.
At this time, the Wang Changhong people next to them saw Xiao Yi's reaction while looking at the information, and couldn't help but ask, "Chief Designer Xiao, what are your thoughts?"
Xiao Yi nodded slightly and said, "I have two ideas now."
"Two?"
Several people were stunned for a moment. Are there two ways?
Wang Changhong leaned forward and said, "I am all ears."
The same was true for Li Zhenhai. Luo Mingya opened his eyes wide and looked at Xiao Yi.
This problem had stumped them for so long, but Xiao Yi looked at the information and was able to come up with two methods?
How is that possible?
Xiao Yi said, "The first method will be slightly more convenient."
"I can make slight changes to the blades and the materials around them without affecting the aerodynamic layout and stealth performance, so that the entire engine can meet the thermal expansion requirements of the new materials."
Upon hearing this method, Li Zhenhai couldn't sit still at first, and asked in great surprise, "Chief Designer Xiao, is it true?"
Xiao Yi nodded and said, "I'm a little bit sure."
For Li Zhenhai and the others, it is very difficult to achieve this. I am afraid that they will have to go through more wind tunnel tests before they can accomplish this. But the problem is that to conduct wind tunnel tests, they have to build the engine, and every time they change it slightly, the time, energy and money they spend are immeasurable.
Although simulations can be performed on computers, the simulations cannot fully reflect the details. Otherwise, why build a wind tunnel?
But for Xiao Yi, this problem is very simple. Perfect Engineering allows him to easily complete the experiment without spending too much time and cost, and the wind tunnel in the simulation is more natural than the artificial wind tunnel.
Therefore, Xiao Yi is confident that we can still find another "zero point" through constant modifications.
"That's great! If Chief Designer Xiao you can really handle it, I... I..."
Li Zhenhai said "I", and I was a little excited and speechless for a while.
However, as the chief engineer, Wang Changhong was very calm. He patted Li Zhenhai on the shoulder and said, "Team Leader Li, calm down. Let's listen to what Chief Designer Xiao has to say first. Let's take the second approach."
Li Zhenhai then recovered and said with a slight embarrassment, "I'm really a little too excited..."
Then he looked at Xiao Yi again and asked curiously, "Then, Chief Designer Xiao, what is the second method?"
Xiao Yi raised his eyebrows. "I wonder if you have heard of the precision magnetic levitation fluid control furnace?"
"Precision magnetic levitation... fluid control furnace?"
Several people were stunned.
Wang Changhong thought for a moment and said, "I seem to have heard of it. It seems that, Chief Designer Xiao, this is the machine you originally developed to make the first wall material of the nuclear fusion reactor?"
Xiao Yi nodded. "Exactly."
"So, the second method is to use a precise magnetic levitation fluid control furnace to produce TA1203, which can make the structure of the material itself more precise and stable, especially the degree of bonding between atoms, which will become stronger."
"Perhaps, this can also make the temperature that TA1203 can withstand higher, and further enhance its thermal conductivity."
Hearing Xiao Yi say this, not only Li Zhenhai, but also Wang Changhong's eyes widened.
He slammed the table directly, startling everyone present, and then heard him ask, "Is it true? Chief Designer Xiao?"
Xiao Yi patted his chest to soothe him, then nodded and said, "Sure enough."
"However, it is also more difficult. It requires the modification of a precise magnetic levitation fluid control furnace. After all, the length of the turbine fan blades is a bit long."
"How to use this machine to produce TA1203 also requires more complex programming."
"So, it may take more time in the end."
However, Wang Changhong didn't even think about it and said directly, "Do it!"