Military Heavy

Chapter 499 Finding the Reason
God!
Master Yang said that the crankshaft had cracks, and it did, and there were three cracks, one long and two short.

Everyone gathered around, centered on this crankshaft, their eyes were attracted by these three tiny cracks, and they couldn't look away anymore.

Under fluorescent lighting, it's crisp and clear.

Gu Zhengxin also stood in front of the crankshaft, staring blankly at the three cracks, and remained silent for a long time.

First of all, I couldn't figure it out. A good crankshaft has undergone such strict inspections during the manufacturing process and before assembly. How could it have cracks?
Gradually, he was extremely shocked when he saw it, knowing that Yang Fan's insistence that there was a crack in the crankshaft was definitely not unfounded.

Reminiscent of Yang Fan's various skills, especially when he helped Hongqi Diesel Engine to deal with the difficult problems before, he performed very well, and Gu Zhengxin was very impressed.

Then, full of apologies.

Luo Jianguo also looked at the cracks, and then laughed heartily, "Comrade Yang Fan, you are amazing, you are really sharp-eyed, and you can see the cracks on the crankshaft at a glance."

Yang Fan said modestly: "I'm not a sharp-eyed man. Commander Luo, you're flattering me. I just inferred that there might be cracks in the crankshaft. Sure enough, the fluoroscopic examination verified my inference."

Luo Jianguo laughed happily.

Sure enough, the problem was found. It turned out that the crankshaft of the diesel engine had cracks.

A burst of relief in my heart!
The atmosphere at the scene became lively, and no one knew who turned on the lights in this fluoroscopic examination room, and it was brightly lit.

Everyone looked at Yang Fan with admiration. At this moment, Yang Fan became the absolute focus here.

"I just said, Chief Master Yang's deduction is not wrong."

"It's amazing, it's amazing, I don't know what to say other than admiration."

"If it weren't for Master Yang, no one would think that there would be a problem with the crankshaft."

"..."

The scene was full of noise and various voices, Gu Zhengxin finally came to his senses slowly, and walked in front of Yang Fan with an apologetic expression on his face.

In front of so many people, he apologized: "Master Yang, I'm sorry, I shouldn't question Mi's deduction."

Yang Fan was very magnanimous, as if he didn't take this matter to heart at all, and said softly: "It's okay, technically, there are differences of opinion and doubts."

Seeing that Yang Fan didn't have any dissatisfaction at all, it was from the heart, and Gu Zhengxin gradually felt relieved.

He secretly said in his heart: "From now on, I must respect Chief Master Yang's opinion, and it can't be like this again, definitely!"

Secretly made up his mind like this.

Sun Baoguo was also very happy. He strode over and reminded: "Everyone, it's already dark outside. It's already past time for dinner. Aren't you hungry?"

Luo Jianguo raised his hand to check the time, and said loudly: "This is the end of the matter for the time being, let's go, let's go to eat first."

It's really just a temporary conclusion, and there are still many things waiting for everyone to do.

Although the problem has been found, the crack in the crankshaft caused the first ship's power system to alarm, but the reason?

A good crankshaft should have a life-long life. As long as the service life of the diesel engine is, it can be used for as long as possible.

The results of it?
The first ship has only been in service for a few months, and the crankshaft has only been used for a few hundred hours, and it has cracks, such a serious quality problem.

Next, it is really necessary to analyze why such a problem occurs.

Everyone had dinner together, and Luo Jianguo mentioned this matter, "Everyone, there is such a serious quality problem with the crankshaft. We will analyze the cause next, and the military will probably send experts to participate in the cause analysis."

Everyone nodded.

We must find out the reason, and it is impossible to just let the problem go.

Design units, shipyards, diesel engine manufacturers, military experts, and personnel from all parties will conduct analysis to find out the cause of the cracks in the crankshaft.

Yang Fan was a little silent, thinking in his heart, this reason is hard to find, when the time comes, should I give a proper reminder.

So far, Yang Fan has determined that it is the same as the power system failure in history. This is a repeat of history, and there is no deviation in this matter.

What caused the cracks in the crankshaft? Yang Fan remembers it clearly. It seems that a certain parameter of the power system was set incorrectly.

This is a very low-level mistake.

Precisely because it is a low-level error, no one would think about it, and the focus must be on checking the crankshaft itself.

Such as whether there is any problem in the design, whether there is a problem in the material, whether there is a manufacturing defect, and so on.

Yang Fan was wondering if he should give a proper reminder so that everyone would avoid detours.

But it was quickly denied, let's take a look first.

Because at the very beginning, you suggested that the power system parameters were set incorrectly, who would believe it!

In addition, it is too shocking, you are a god, you know where the problem is before you start.

Therefore, Yang Fan is going to wait for a while, and when the time is right, he will give a proper reminder, and finally find out the real reason.

While eating, everyone talked about some things at work.

Such as setting up a failure analysis team composed of design units, shipyards, diesel engine factories, and military experts to find out the real cause of the cracks in the crankshaft of the diesel engine.

For another example, continue to disassemble the diesel engine that has not been completely disassembled, disassemble it into parts, and check whether there are any problems with the remaining parts.

.........

The next day.

The new factory building of Dongjiang Shipyard is still lively and busy. Workers and technicians have completely disassembled the diesel engine as required.

A failure analysis team was also established, with Luo Jianguo as the team leader, Yang Fan and Gu Zhengxin as deputy organizations, and several team members, including several experts from the military.

Why was Gu Zhengxin the deputy team leader instead of Sun Baoguo?
the reason is simple.

It was obviously a problem with the diesel engine, not something wrong with the ship during its construction. Gu Zhengxin must be the deputy team leader, not Sun Baoguo.

In the morning, all members of the group had their first meeting.

Luo Jianguo said loudly: "Everyone, there are cracks in the crankshaft. Our top priority is to find out the root of the problem, that is, why the crankshaft has cracks and what caused it."

Straight to the point.

This is also the main task of the entire failure analysis team.

After emphasizing this point, it is everyone's turn to speak freely, expressing their views, suggestions, etc., for everyone to discuss.

An expert from the military stood up and suggested: "This type of diesel engine is the original technical data imported from the West. There should be no problems with their design. What we need to check is whether there are any problems during the translation process. error, or even aliasing."

That's a good suggestion, but it's not impossible.

Luo Jianguo ordered: "Mr. Gu, after the meeting is over, you should call back as soon as possible and ask your factory's technical team to check this matter."

Gu Zhengxin quickly said: "No problem, we will conduct a detailed inspection immediately."

Then someone suggested, "In addition to the design problem, whether there is a problem with the material, I suggest taking a sample for metallographic analysis to verify the strength of the material."

This crankshaft must be useless, and some materials were taken from it for relevant analysis and verification, and there was no major problem at all.

Luo Jianguo ordered: "Mr. Sun, you are responsible for this matter."

Sun Baoguo hurriedly said, "Okay, no problem."

The meeting lasted for almost two hours. After the meeting was adjourned, everyone began to act separately according to some resolutions formed at the meeting.

Find out whether there is a problem with the design, whether there is a problem with the material, and even check the relevant records in the manufacturing process, etc.

It is that no one has asked whether there is a problem with the parameter setting of the power system.

Yang Fan originally wanted to mention it, but in the end he held back and waited for a while. The work is basically done, and we can talk about it when the time is ripe.

All work is carried out in an orderly manner.

One day has passed, two days have passed, and it has been confirmed that there is no problem with the design, with the material, and with the manufacture of the crankshaft.

Gradually, the pressure came up.

Luo Jianguo even received a phone call from his superiors himself. Obviously, the higher-ups have been paying attention to this matter.

That's all for today's update, good night everyone.

(End of this chapter)