On the stage, a team leader in his fifties, nodded to everyone. It looks a little like a master of the world, and it sounds like a wandering wreckage. It's hard to hear

Clear his throat and try to cough twice, it seems that there is nothing wrong with the equipment" Liu Pingjie was assigned by the above as the leader of the investigation team, and after a few days of analysis, everyone in the team came to the conclusion that the problem of the accident was the engine manufacturing process. It's not a matter of design. ”

I just finished speaking, but I didn't wait to continue. There was a sense of relief below. All kinds of exclamations are endless.

"Oh, I'll just say, where did so many design problems come from."

"That's right, as long as it's not our problem," someone whispered in response.

Seeing that the discipline of the venue below was a bit chaotic, the host of the meeting felt that he had been challenged, and it was too faceless to give face, so he interfered with discipline with a black face.

"Be quiet, don't discuss, go down and talk about problems if you have them, and listen to the experts."

Hearing that the above interfered with the discipline of the meeting, the following instantly fell silent.

"Let me first talk about the whole accident process: the problem with the crash of the factory test flight plane is the engine, and the whole engine problem is. The blades of the engine's first-stage high-pressure compressor broke, breaking the casing, and the debris then breaking the blisk behind it. Ended up breaking the entire engine and breaking the tail. ”

Sure enough, there was no discrepancy between the accident and Yang Hui's analysis at the time. Hearing this, Yang Hui was full of emotion, and his whole body was really moved. The aviation industry really can't afford to be sloppy, and a small problem can have serious consequences.

"Now I'm going to talk about the cause of the broken blade, and it's ridiculous to say." Before the reason is said, you have to be sarcastic first, it seems that the reason is some.

Speaking of which, several Liyang factory people in the investigation team actually blushed a little, of course, it was not obvious and quickly covered up.

Without pausing, he continued

"The fact is very simple, the assembly line is mixed up with the assembled parts, and the parts of different groups are actually mixed in the group assembly. As a result, there is an extra blade in the blisk that is not of the same group of precisions. The actual size of the blades exceeds the limit size of the group, resulting in the severe friction between the blades and the casing of the oversized blades in the high-speed operation of the combined engine, and the blade roots reach the fatigue strength in advance. Eventual breakage. ”

PS: The grouping assembly method is to divide the parts with different precision into several groups of similar size, and the small blisk in the assembly is matched with the small size of the casing, so as to obtain higher accuracy.

Hearing this, the entire auditorium was silent, and there was no other reason for the accident, which was caused by typical paralysis and carelessness.

Then it couldn't help but discuss, and even the host didn't continue to say anything, and the host was also shocked by this reason, and he couldn't reflect it.

Seeing the following reflection of the investigation team, the leader of the investigation team also stopped speaking, giving everyone time to digest the news, after all, it sounded too surprising.

A few people in Liyang Factory lowered their heads and were about to bury them under the table, they were really embarrassed to meet people, there was such a thing, how could they be embarrassed to see the villagers and elders of the second institute.

Finally, after a sigh, everyone below quieted down, and the host of the meeting finally came back to his senses and coughed embarrassedly

"Well, everyone, be quiet. Keep listening, and pay attention to the discipline of the venue. "It's obvious that the host lost his mind just now, and now he's embarrassed to emphasize discipline in a righteous and strict manner.

Below, Yang Hui is still thinking about it: I thought about it and thought of countless possibilities, but I definitely didn't expect it to be like this, it was simply a low-level mistake that couldn't be lower-level, and it was really a mistake that turned into a thousand hatreds. If the fitter of the assembly can pay more attention, maybe it will not be wrong, maybe the inspector can check more carefully to find out this problem, if the parts management can better distinguish the parts of each group, there will be no accident.

All kinds of carelessness caused this accident, it can be seen that the discipline of workers needs to be strengthened, of course, all kinds of reasons are not the fundamental reasons, in the mass production of the engine and group assembly is not with common sense, but where the machining accuracy is higher, there will be no such thing, directly with the complete interchange method. There will be no possibility of such errors if the foreign machining accuracy is high.

Let my thoughts fly to the "82 Project" Sino-US cooperation to upgrade the J-8 in the air Cai Guoqing, China flew over two experimental prototypes, and the parts of the two aircraft could not be used, and once they lay down, they had to wait for the domestic special parts. That face is embarrassing, just think about the expression of the American devil

"This accident is a big lesson, requiring us to pay close attention to the details, can not be a little sloppy, our Liyang factory has been ruthlessly investigated and punished by the relevant responsible persons, is serious work discipline, the whole plant to learn and rectify, must prevent this kind of thing from happening again." At this time, the representative of Liyang Factory expressed his determination in front of so many people, and he also worked hard.

Unexpectedly, after saying this, it actually attracted a sparse applause below, and it seems that many people are still optimistic about Liyang. However, I am afraid that the Liyang factory will not feel good no matter how you listen to it, but I am afraid that it is a little harsh.

"Well, the whole accident is like this, I want to say that the lessons of the Liyang plant are universal, and I hope that all factories can learn lessons from this accident, strictly enforce work discipline, and examine themselves in an attitude of being responsible to the party and the country and the people. Don't be careless. "After the analysis, there is no major event in the two institutes, and everything in the analysis meeting is simple.

After finishing the investigation team, they packed up their things and left, after all, the matter was not dealt with yet, and there were still many things waiting for the team. At this time, of course, the secretary of the institute went out to send the group away.

Finally, it was the director's turn to speak, and it was better to see Director Bai's mood, after all, this accident was not the responsibility of the institute, and it was normal to be slightly glad.

Smiling, Director Bai said solemnly to everyone in the audience, "Okay, it's not our responsibility this time, but don't be happy." After all, it's a problem with the base, and if asked above, it will only say that it's a problem with our 0011 base. Therefore, in order to learn lessons and take precautions, the institute is preparing to carry out a major inspection, and each department needs to re-examine the design for which it is responsible. ”

Sure enough, there is such a big thing, even if there is no responsibility with their own office, it is inevitable to be busy, and it is a fine tradition to carry out self-examination, which cannot be less, but the most important thing is to arrange work for the following departments. There is much more to do than nothing to do.

Seeing that he was not too interested in this matter, Director Bai was also very helpless to lose, and he had no money to look like this, so he could only continue to bite the bullet and say, "All departments should be taken seriously, and the next advanced department evaluation will occupy a large proportion of this." ”

After speaking, he waved his hand to signal that he was finished, and the meeting moderator looked at the few people sitting on it and announced the adjournment of the meeting. The crowd finally stood up sparsely and began to walk out, and Yang Hui also walked out with the two people from his department.

"I opened it this time, I didn't learn anything, I thought that the experts on the accident analysis could have amazing statements, but I didn't expect it to be such a reason." Wu Dabo said as he went down the stairs, looking very dissatisfied with this analysis, because he thought that it was better to draw his own drawings than to waste time.

Yang Hui's newcomer is not easy to evaluate, but it does not mean that Wu Hongjun in the same department will not continue to say Wu Dabo's words.

"That's what happened, the experts who didn't understand it would forget it, and arrange a job to re-review the design. Now there is something to do. ”

A bitter and hateful look resonated with many people around him, "That's right, this is the first review after this WP7 model is finalized, let me redraw almost a good line." ”

After speaking, there was a "yes... yes..."

It seems that the situation is not optimistic. All departments are short of money, and the money-making plan must be supported by the institute as soon as possible. Thinking of this, Yang Hui turned around and chased after Director Bai, who had just left・・・・・・・・・・・・・・・