After hearing the conversation between the leader of the expert team and Mr. Dong, other experts and the navy chiefs also observed carefully. Sure enough, as Mr. Dong said, after every large-scale vibration test on the 10-ton vibration test bed, the figure on the screen There will be several pipes flashing on the three-dimensional picture like an anatomy diagram of an airplane.
Several staff members used different methods to rearrange or reinforce according to the brightness and frequency of the flashing. Immediately, several dynamic simulations of the previous 10-ton vibration test bench were performed on the screen to test the improved effect.
If that's all, the key is that the front fuselage of the fc-23 carrier-based 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. According to the screen The feedback information and the improvement plans made will be used to modify the internal wiring layout.
After everything is over, the original state is restored, and the 10-ton vibration test bench is started again to conduct a new round of vibration tests.
Repeating this cycle, the airborne electronic equipment, instruments, circuits, oxygen supply system, and fly-by-wire control system in the front section of the fuselage equipment compartment of the fc-23 carrier-based heavy fighter jet quickly changed from immature to mature at a speed visible to the naked eye. True maturity
Finally, a certain chief of the navy could not bear it anymore and pointed to the test bench and screen and asked Zhuang Jianye: "Xiao Zhuang this is"
"This is the model-defined three-dimensional design and manufacturing technology and online associated design technology developed by China Tengfei based on the jsnb-4 series of aviation and aerospace special design systems. The former is a combination of the design end CAD and the manufacturing end of processing, assembly, measurement and inspection. cam is highly integrated.
The latter is a universal design platform based on the Internet and modern communication technology. The biggest feature is that all aspects of aircraft design are included in the same platform. When a design data changes, the associated nodes, pipelines, Control plane data is automatically updated simultaneously"
Zhuang Jianye spoke with great passion, but everyone present, including experts and army leaders, had their heads filled with questions and looked completely confused.
There is no way, whether it is the three-dimensional design and manufacturing technology based on model definition or the online correlation design technology, it is somewhat beyond the understanding of these people, so that these senior industry insiders are just like listening to a book from heaven, and they can't even think about it.
The most important thing if you want to pretend to be good at 13 is not how good you are, but that the audience can feel it. Everyone is like a scumbag. Even if you are really awesome, no one will think you are awesome.
As the king of understanding in the aviation industry and the king of the 13-year-old fashion industry, Zhuang Jianye is well aware of this. When he saw the scene, he immediately realized the collective tendency to be a scumbag. Zhuang Jianye changed the subject and began to transition from purely academic language to easy-to-understand popular rhetoric: " I must have all the leaders seen the vast two-dimensional design drawings of aircraft models, right? When I first started working, I did some process proofreading work in the process department for a month. To be honest, I almost went blind in that month. My head wants to explode"
As soon as the topic changed, Zhuang Jianye's words immediately resonated with everyone present. They were all senior industry insiders. Many of them started from the bottom when they were young. Those vast two-dimensional engineering drawings and parts detailed lists were absolutely terrifying. Due to the existence of the problem, not only the drawings by designers are complicated and cumbersome, but also the production and manufacturing links must organize the process and tooling departments to review and proofread the drawings and materials as soon as they receive them.
The first is to look for possible flaws in the design, the second is to mark out the designs that do not conform to the actual production and redesign them, and the last and most important thing is to use the factory workers to identify areas where the design is unclear or incomplete. Ability to present expressions in understandable ways.
Because of this, every time a new model is released, the process department in the manufacturing plant will be in a state of panic. Not only are people arrested throughout the factory and seconded to proofread drawings and materials, but they also have to repeatedly argue with the design unit and the front line of the workshop. In the end, Form a tripartite balanced consensus.
It is just that a long process is often required before that. It can be done in one year. It is extremely efficient. Usually it takes three to four years to land. A little bit of leakage must be boiled for five or six years to have eyebrows.
There is no way to do this. Who makes the aircraft model involve too many things and be too complicated? Take the assembly outline of the aircraft, which includes a management manual, a situation manual, a sketch and a parts list.
It is further subdivided into assembly name number, manufacturing index, engineering change application number, issuance number, sortie control, version control, customer control, serial number, brief work description, operation content requirements, product drawings, process standards, and inspection requirements. More than 40 kinds of process information, production information, quality information and process information.
And this is just an aircraft assemblyIn the manufacturing process, you must know that something as small as a rivet or as large as a pair of wings involves more than tens of millions of things. To put it bluntly, stacking these paper specifications and engineering drawings can really crush people.
However, it¡¯s just cumbersome, troublesome, and inefficient. As long as we can produce high-quality products, it¡¯s worth all the effort. The key to the problem is that the quality is also unsatisfactory.
Because the master workers must carefully interpret the two-dimensional engineering drawings and understand assembly instructions and other documents word for word during on-site construction, the scene often becomes a large-scale speaking or reading comprehension test due to unclear drawings or language.
Not to mention low efficiency, in the end, often under the insistence of some masters, they uncontrollably slide into the abyss of empiricism, so that many factories have found that the apprentices below do what the masters do, anyway, the drawings and instructions are I couldn't understand how the experience of the masters could be as simple and clear as possible, so frequent quality problems arose.
This problem has occurred in the Y-8 transport aircraft produced by the Northwest Airlines Group in the past few years. There were 6 rivets in a structure of the cabin door of the Y-8. The aircraft designer changed the drawing and found that it was missed. I didn¡¯t find that the on-site workers¡¯ experience in assembling and installing full-screen screens was simply inferior to the instructions and drawings. As a result, some workstations were installed as required, some were equipped with five, some were four, and some were not installed at all. .
This resulted in serious quality problems with this batch of Y-8s produced by Northwest Airlines Group, and they were returned as a whole by the Air Force.
Similar situations are unavoidable problems in the world, not to mention the domestic aviation industry. After all, in this interlocking manufacturing process, as long as there is a flaw in one place, it will be an overall disaster. This is why we think so. , despite the glamorous appearance of people in the aviation industry, and the demeanor of high-level intellectuals, in fact, the moment they hold a pencil to the drawing is more difficult than tmd moving bricks!
The three-dimensional design and manufacturing technology and online correlation design technology based on model definition mentioned by Zhuang Jianye are nothing else. They are to completely eliminate the reliance on paper documents and drawings in the aviation manufacturing field, and use an aviation manufacturing revolution to completely eliminate the reliance on paper documents and drawings. People in the aviation industry are liberated from hardship!
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