Chapter 1450

Hearing the dialogue between the leader of the expert group and Mr. Dong, other experts and the heads of the Navy also observed carefully. As expected, as Mr. Dong said, after each large-scale vibration test on the 10 ton vibration test-bed, several pipelines flickered on the three-dimensional picture like the plane plan on the screen.

Several staff members use different methods to rearrange or reinforce according to the brightness and frequency of flicker. Immediately, the dynamic simulation of the previous 10 ton vibration test-bed will be carried out several times on the screen to test the improved effect.

If that's all, the key is that the front fuselage of fc-23 shipborne heavy fighter on the 10 ton vibration test-bed will also open the skin of the equipment cabin under the operation of technicians at this time, and modify the internal circuit layout according to the information fed back on the screen and the improvement plan made.

After everything is finished, it shall be restored to the original state, and the 10 ton vibration test-bed shall be started again for a new round of vibration test.

In such a cycle, the airborne electronic equipment, instruments, circuits, oxygen supply system and telex control system in the front fuselage equipment cabin of fc-23 shipborne heavy fighter quickly changed from immature to real maturity at a speed visible to the naked eye

Finally, a chief of the Navy couldn't help but point to the test-bed and screen and ask Zhuang Jianye: "Xiaozhuang... This is..."

"This is the 3D design and manufacturing technology based on model definition and online associated design technology developed by China Tengfei based on jsnb-iv series aviation and aerospace special design system. The former highly integrates the design end CAD with the manufacturing end cam of processing, assembly, measurement and detection.

The latter is a general design platform based on the Internet and modern communication technology. The biggest feature is that all links of aircraft design are included in the same platform. When a design data is changed, the associated node, pipeline and control surface data are automatically updated synchronously... "

Zhuang Jianye was talking about passion, but all the experts and leaders present were full of question marks, completely ignorant.

No way, whether it is 3D design and manufacturing technology based on model definition or online related design technology, it is beyond the cognition of these people, so that these senior people in the industry can't be confused like listening to the book of heaven.

The most important thing to improve the level of 13 is not how powerful you are, but that the audience should be able to feel their hands. Ducks like learning slag listen to thunder. Even if they are really cow x, no one will feel very cow X.

As the king of understanding in aviation and the king of loading 13, Zhuang Jianye is well versed in this way. As soon as he looks at the scene, there is a tendency of collective learning slag. Zhuang Jianye's words change from pure academic language to easy to understand popular words: "All leaders must have seen the vast number of two-dimensional design drawings of aircraft models? When I first started working, some of them did a month's process proofreading work in the process department. To tell the truth, I almost didn't see my eyes blind that month and wanted to blow my head..."

As soon as the conversation changed, Zhuang Jianye's words immediately resonated with everyone present. They were all senior insiders. Many people started from the bottom when they were young. Those vast two-dimensional engineering drawings and parts lists are absolutely frightening. Not only the designers draw complex and cumbersome, but also the production and manufacturing links are the first time they receive incoming drawings and materials Organize the process and tooling department to review and proofread the drawings and data.

The first is to look for possible mistakes of the designer, the second is to mark the design that does not conform to the actual production and redesign it. Finally, the most important thing is to present the unclear and incomplete expression in the design in a way that the factory workers can understand.

Because of this, whenever a new model is introduced, the process department in the manufacturing plant will make chickens fly and dogs jump. Not only will the whole plant catch people everywhere and seconded to proofread drawings and data, but also quarrel with the design unit and the front line of the workshop repeatedly, so as to finally form a tripartite balanced consensus.

But before that, it often takes a long process. It is very efficient to run it in one year. It usually takes three to four years to land. It takes five or six years to make a mistake.

There is no way to do this. Who makes the aircraft model involve too many and complex things? Take the aircraft assembly outline, including management manual, situation manual, sketch and parts supporting list.

It is subdivided into assembly name and number, manufacturing index, engineering change application number, issuance number, Sorty control, revision control, customer control, series number, brief work description, operation content requirements, product drawings, process standards, inspection requirements, etc.

This is just a manufacturing link of aircraft assembly. You should know that as small as a rivet and as large as a pair of wings, there are more than ten million things involved. To put it mildly, stacking these paper specifications and engineering drawings together can really kill people.

However, it's just tedious, troublesome and inefficient. As long as we can produce high-quality products, everything is worth paying. The key to the problem is that the quality is also unsatisfactory.

Because the workers and masters should not only carefully interpret the two-dimensional engineering drawings, but also understand the assembly instructions and other documents word by word, the site often becomes a large-scale reading and speaking or reading comprehension test due to the unclear drawings or language.

The efficiency is low. In the end, with the insistence of some teachers, they often slide into the abyss of empiricism uncontrollably, so that many factories have what the master does and the following apprentices do. Anyway, they can't understand the drawings and instructions. There is no teacher's experience, so frequent quality problems came into being.

This problem occurred in the yun-8 transport aircraft produced by Northwest Airlines Group a few years ago. There were 6 rivets in a structure of the cabin door of yun-8, which were omitted when the aircraft designer changed the drawing, and the process personnel did not find it during the audit. The on-site workers had full screen experience in assembly and were unable to meet the instructions, opinions and drawings, resulting in some stations being installed as required and some stations being installed 5, Some stations are equipped with four, while others are not equipped with one at all.

This led to serious quality problems in this batch of yun-8 produced by Northwest Airlines Group, which was returned by the air force as a whole.

Similar situations, let alone the domestic aviation industry, are unavoidable problems all over the world. After all, as long as there is a mistake in this interlocking manufacturing link, it is an overall disaster. Just think so. Don't look at the bright appearance of the aviation industry and the demeanor of senior intellectuals, In fact, the moment you hold a pencil to the drawing is harder than TMD's brick moving!

The three-dimensional design and manufacturing technology based on model definition and online related design technology mentioned by Zhuang Jianye are nothing else, that is, completely eliminate the dependence on paper documents and drawings in the aviation manufacturing field, and completely liberate the aviation industry from the forced state with an aviation manufacturing revolution!