Great Power Technology

Liu Ranran probably really wanted to have a good meal with Ye Zhou to express her gratitude. In her heart, the results she can make are actually based on the new material platform provided by Ye Zhou, so if there is no way to let Ye Zhou If you want to put your signature on the results, you have to express it in other ways.

But the way she expressed it was a bit awkward.

But Ye Zhou didn't pay too much attention to it. He had to find someone to eat anyway, so there was nothing wrong with chatting with her.

As a result, the lunch was finished in such a slightly embarrassing, but also somewhat 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 went 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 had been preparing for a long time.

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 Dragon Heart, and it is also one of the technologies that can play a decisive role in future aircraft engine design.

With this system, most of the testing work of aero engines in the future can be moved from reality to virtual reality, and there is no need to conduct actual production at all. By directly inputting various parameters into the system, a complete engine can be assembled, and then based on Carry out 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 pattern of the entire world's aviation industry.

However, in order to truly utilize the full capabilities of this software, Ye Zhou still faces two major problems.

First, the computing power of existing general-purpose computers is far from being able to support full-module simulation of the matrix. At most, it can only simulate in a small range and a single functional area, and its function does not exceed 5%.

Secondly, the simulation and calculation of matrices 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 "low" efficiency, Ye Zhou has already done enough.

What he wanted to do was not a full-module simulation, but a quantitative simulation of the microstructure evolution based on inherent parameters. The goal was to understand the performance of several core hot components in the engine under extremely high temperature conditions.

After seeing Ye Zhou, the members of the temporarily formed group were already trying to come over. One of them said:

"Gong Ye, we have input the data previously obtained from various workshops into the system. We did the first test run in the morning. The parameters are basically correct. The next step is to conduct strength simulation."

“What structures are currently involved?”

Ye Zhou asked.

"Mainly the turbine blade wing tips, axial force transmission long screws, high-pressure turbine rotor, torque transmission sleeve gear rod, and turbine guide blades."

"Is the simulation content set up?"

"It's set up, a total of 4 analyses, temperature, pressure, stator blade position angle, oil dust and spectrum."

After hearing what the other party said, Ye Zhou thought for a moment and added:

"Add a rotation speed and vibration analysis to the spindle. This is the first time we have used a large-scale superplastic forming process. The performance is not yet stable. Temperature and pressure are not problems. What I am worried about is that the margin in material processing is too high. This will lead to a loss of accuracy.”

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

"Then take it away. The difficulty of this test is relatively low and can be left for ground testing."

"OK!"

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

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

broken.

Literally broken.

In the final result analysis chart, it was found that there was no problem with the torque transmission sleeve gear rod that Ye Zhou was most worried about. Instead, there was a problem with the turbine fan blade tip.

According to the preset conditions in the simulation, these fan blades only worked for less than 620 hours before serious creep occurred. During the last test run, even when the speed had just reached the rated standard, the wingtips were directly damaged by supersonic speeds. The powerful centrifugal force tore it apart.

What's going on?

According to the design standards of an aeroengine, the total cycle life of a commercial aviation engine must reach at least 40,000 hours. Even a military aviation engine that is used intensively must have a service life of at least 4,000 hours to be considered qualified.

However, if we look at the current results, the life of the fan blades of this engine will not even reach two hundred hours.

After pondering for a moment, Ye Zhou said:

"Simulate again to see if it's an accident."

After hearing this, the team members started the simulation again. This time the problem was still with the wingtip, but it had lasted for more than 1,000 hours.

Without the assistance of strong artificial intelligence, the matrix system cannot judge the influencing factors of this result. In other words, it can tell you which part will have problems, but it cannot tell you where the problem is.

The pressure instantly came to Ye Zhou and the team members. They reviewed the parameters from beginning to end and confirmed the accuracy of the parameters again.

There is no problem with the processing technology and accuracy, and the tolerances are 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 superplastically 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 sure to be 100% accurate."

"Then why does this happen? The material composition of the torsion sleeve gear rod is almost the same as the material composition of the wing tip, and it is under greater pressure. Why does it not have problems? Instead, it has been tested so many times There was something wrong with the fan blade."

After hearing Ye Zhou's question, all the group members fell silent.

There is no answer in their hearts.

Ye Zhou looked over the parameters and simulation results over and over again, actively activating the decision-maker talent in his mind, but failed to grasp any clues.

"When you got the parameters, did you confirm with the workshop that the parameters came from high-quality fan blades? Has the purity of the material been tested? Could it be that impurities were mixed in during the processing?"

"It has been tested and there is no problem with the purity. Wait, if there is a problem with the material, Mr. Ye, the material of this batch of fan blades is really different from the material of the torque transmission sleeve gear rod."

"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 torque transmission sleeve gear rod has not been remade multiple times because the structure is relatively fixed. It still uses titanium from the previous inventory. Alloy, you say... could it be a problem with this batch of materials?"

Material problem?

Ye Zhou's heart jumped suddenly.

Indeed, after all other possible factors have been eliminated, the material becomes the only suspect.

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 the high-end titanium alloys used by Liming Aircraft are all from Baoti Group. There have never been any problems in history. Judging from the entry and exit records kept by Liming, it has never been used by anyone midway. Possibility of package tampering or inclusion of other destructive elements.

If there is really a problem with 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 materials laboratory, and said:

"I am 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 that were put into storage for comparison. I don't care whether this batch meets the standard or not. If there are any differences from the previous batch, please notify me immediately!"

"Do a comprehensive test! What I want is a comprehensive analysis result including metallographic, composition, and mechanical experiments!"