Great Power Technology.

Chapter 181

Liu Ranran probably really wanted to have a good meal with Ye Zhou to express her gratitude. In her heart, the results she could make were actually based on the platform of new materials provided by Ye Zhou, so if there was no way to let Ye Zhou If you sign your name on the achievement, you have to express it in other ways.

But the way she expressed it was a bit awkward.

But Ye Zhou didn't care too much, anyway, he always had to find someone to eat, so there was nothing wrong with chatting with her.

So, the lunch was finished in such a slightly awkward but sincere atmosphere.

Ye Zhou didn't take the brief contact between the two of them seriously. After returning to the office for a short rest, he came to the core development department of the factory. After greeting several team members, he connected to the computing terminal and was ready to start He has already prepared for long hours of work.

After the terminal screen lit up, a huge simulation system began to load.

matrix.

This is an important result he obtained from the simulation plot of the heart of the dragon, and it is also one of the technologies that can play a decisive role in future aviation design.

With this system, most of the test work for aero-engines in the future can be moved from reality to virtual, and even without actual production, you can directly input various parameters in the system to assemble a complete engine, and then according to Test run simulation under preset conditions.

This is a technology that spans the ages. If it can be fully used, it will essentially change the entire world's aviation industry.

However, Ye Zhou still faces two major problems if he wants to truly utilize the full functionality of this software.

First, the computing power of the existing general-purpose computers is far from supporting the full-module simulation of the matrix. At most, it can only be simulated in a small-scale, single-functional area, and its function does not exceed 5%.

Secondly, the simulation and calculation of the matrix rely on strong artificial intelligence. Without the assistance of strong artificial intelligence, the adjustment of parameters can only rely on manual experience, and the analysis speed is extremely slow and the efficiency is not high.

But even if it's just the current "not high" efficiency, it's enough for Ye Zhou.

What he wants to do is not a full-module simulation, but a quantitative simulation of the microstructure evolution based on inherent parameters. The goal is to figure out the behavior of several core thermal components in the engine under extreme high-temperature conditions.

After seeing Ye Zhou, the members of the temporarily formed team came over one after another, and one of them said:
"Gong Ye, we have already input the data obtained from various workshops into the system. We did the first test run in the morning, and the parameters are basically correct. The next step is to carry out the strength simulation."

"What structures are currently involved?"

Ye Zhou asked.

"The main parts are the tip of the turbine blade, the long screw for transmitting the axial force, the high-pressure turbine rotor, the gear rod for the transmission sleeve, and the blade of the turbine guider."

"Is the simulation content set up?"

"Set up, a total of 4 analyses, temperature, pressure, stator vane position angle, oil debris and spectrum."

Hearing what the other party said, Ye Zhou thought for a moment, then added:

"In terms of spindle speed and vibration analysis, this is the first time we have used a large-scale superplastic forming process. The performance is not stable, and the temperature and pressure are not a problem. What I worry about is that the margin in material processing is too high. will result in a loss of accuracy."

"Understand Ye Gong, I will set it up right away. But if we want to add this content, we have to remove the spectral analysis, or the computing power will not be able to support it."

"Then take it away. The difficulty of this test is relatively low, and it can be reserved for the ground test."

"Ok!"

After a simple reply, the team members quickly entered the work of parameter setting. An hour later, the first simulation was completed.

Ye Zhou frowned as he watched the results displayed on the big screen.

broken.

Literally broken.

In the final result analysis chart, Ye Zhou was most worried that there was no problem with the gear rod of the torque transmission sleeve, but the problem with the tip of the turbine blade.

According to the preset conditions in the simulation, this batch of fan blades only worked for less than 620 hours before severe creep occurred. In the last test run, even when the speed reached the rated standard, the wingtips were directly crushed by the supersonic speed. The strong centrifugal force shattered it.

What's the situation?
According to the design standard of an aeroengine, the total cycle life of a commercial aeroengine must reach at least 4 hours, and even a military aeroengine that is used intensively must have a lifespan of at least 4000 hours to be considered qualified.

However, according to the results in front of us, the life of the fan blades of this engine would not even reach [-] hours.

After pondering for a moment, Ye Zhou said:
"Simulate it again to see if it is an accident."

The team members heard that they started the simulation again. This time the problem was still with the wingtips, but it persisted for more than 1000 hours.

Without the assistance of strong artificial intelligence, the matrix system cannot make a judgment on the influencing factors of this result. In other words, it can tell you which part will go wrong, but it can't tell you where it went wrong.

The pressure came to Ye Zhou and the team members in an instant. They checked all the parameters from the beginning to the end, and reconfirmed the accuracy of the parameters.

There is no problem with the processing technology and accuracy, and the tolerance is also within the design tolerance range of GE-9X
The only thing that might go wrong is the material.

Ye Zhou asked:
"Are you using the parameters of the latest batch of superplastic formed fan blades?"

The group members nodded quickly and replied:
"Yes, because the parameters of the fan blades made of new materials have not yet been released, so we took the parameters of the last batch of titanium alloy fan blades. We took them directly from the workshop. All parameters are 100% accurate."

"Then why did this happen? The material composition of the gear rod of the torque sleeve is almost the same as that of the wingtip, and it is under greater pressure. Why does it have no problems, but it has been tested so much in practice? There was a problem with the second fan blade."

Hearing Ye Zhou's question, all the team members fell silent.

There is no answer in their hearts.

Ye Zhou flipped through the parameters and simulation results over and over again. He had already activated the talent of the decision maker in his mind, but he failed to catch any clues.

"When you got the parameters, did you confirm with the workshop that the parameters come from good-quality fan blades? Have you tested the purity of the materials? Could it be that impurities were mixed in during the processing?"

"It has been tested, and the purity is fine. Wait, if there is a problem with the material, Ye Gong, the material of this batch of fan blades is really different from the material of the gear rod of the torque transmission sleeve."

"why?"

Ye Zhou looked away from the screen, raised his head and asked.

"This is the latest batch of titanium alloy fan blades. It is made of the latest titanium alloy that has entered the factory. However, the gear rod of the torque transmission sleeve has not been remade many times because of its relatively fixed structure. It still uses the titanium in the previous inventory. Alloy, you said... Could it be a problem with this batch of materials?"

Material question?
Ye Zhou's heart skipped a beat.

Indeed, after ruling out all other possible factors, the material was the only object of suspicion.

According to the knowledge in his mind, if there is a problem with the composition of the titanium alloy as the main material, it is indeed likely to reduce the life of the turbofan blades.

But the problem is that all the high-end titanium alloys used by Liming Hangfa come from Baotai Group, and there have never been any problems in history. Possibility of dropping packages or incorporating other destructive elements.

If there is really a problem with the titanium alloy material, then there is only one answer.

This batch of titanium alloys had problems before entering the factory.

Thinking of this, he immediately picked up the phone, connected to the material laboratory, and said:
"I'm Ye Zhou. Please organize an inspection of the latest titanium alloy materials in storage immediately. I now suspect that there is something wrong with this batch of materials."

"Yes, find some titanium alloys from the previous batch for comparison. I don't care if this batch meets the standard or not. As long as there are differences with the previous batch, please notify me immediately!"

"Do a comprehensive test! What I want is a full range of analysis results including metallographic, composition, and mechanical experiments!"

(End of this chapter)