Sun Chengming was the first to stand up and said: "What Comrade Shen Huan said just now is not only incisive, I even feel that our shipbuilding industry is about to usher in a change, especially our warship construction."
Digital shipbuilding, this is a very new concept, and I am even surprised where Comrade Shen Huan's ideas came from.
Although some foreign professional magazines have published some papers on digital shipbuilding, they are very vague.
Of course, I was even more shocked when it came to the control of vibration and noise reduction in submarine construction.
These ideas are very practical, I would like to ask Comrade Shen Huan, these ideas are difficult for our experts to come up with a breakthrough one, how did you come up with such a young age and just entered the shipbuilding industry?
” Shen Huan didn't expect Sun Chengming to ask this, it is estimated that it is his military identity, could it be that he also suspects that he is a member of the special department?
Or do you still not believe in yourself, thinking that you are a secret agent lurking in a shipyard abroad?
But it's impossible, after all, your identity can't be faked.
Shen Huan said helplessly: "This, maybe it's because I paid more attention to it when I was in college, and I often went to the school library for a few hours." ” Shen Huan also said something himself, some of which were too advanced, but if he didn't say it, wouldn't it be too wasteful?
It can make China's shipbuilding technology progress faster and reach the point of digital shipbuilding as soon as possible, and then all kinds of advanced warships will be launched in Changxing, Jiangnan, like dumplings, that is not a good thing for the whole world to celebrate?
The experts present originally had a lot of doubts, but when Shen Huan said this, they felt that this young man might really have a talent for shipbuilding, and he studied too hard, and he could do this in his college days, and it was rare to go deep into the knowledge and technology of diamond shipbuilding.
Sun Chengming said: "I think our new generation of submarines should consider adopting a modular construction process, which Comrade Shen Huan also mentioned just now."
I would like to add that since the construction of submarines was confined to small cabins, the types of work were mixed and crowded, and the production efficiency was relatively low, Western countries began to apply the modular design and construction of submarines in the eighties.
Although our type of submarine does not adopt modular design, we should rely more on the direction of modularization in terms of construction technology, so that we can explore some experience in modular construction for future improved models, and also provide some data support for future modular design.
That's all for my opinion!
Thank you!
” Sun Cheng's Ming opinion also received everyone's applause, but after the applause, Yu Tao said loudly: "What Sun Gong said is very reasonable, our shipyard should also make breakthroughs, innovate, and do some supporting work for the design unit."
Do you have any ideas for modular process and tooling design, just put it forward.
You have to brainstorm ideas!"
At this time, a young engineer named Wang Mingjun from the technology center stood up and said quite confidently: "Leaders, let me talk about my views on the modular construction process.
Generally speaking, after the completion of the division of the general section, it is necessary to carry out research and design on the installation and special tooling of the large module or the compartment in the section.
For example, in terms of the process design of the closure of the general section, I think the steps should be considered in this way, first of all, the center of the general section is closed, then the closing seam is welded, then the docking area structure is installed, then the pipe system is connected, the cable is laid, and finally the small module and equipment are installed.
Of course, the specific installation process, Comrade Shen Huan also talked about it in detail just now, so I won't expand on it. ” After a pause, Wang Mingjun said: "I want to add that in fact, the hull lofting under the modular construction process has not changed much, and the whole boat is divided into several cabins.
However, in terms of structural tightness test, you can consider learning foreign methods.
There are mainly the following types, one is to replace the structural pump water test by ensuring the welding quality and the inspection of the weld.
The second is to adopt the method of testing the water separately in each general section, which is the method adopted by Russia, and I prefer the method of European and American countries, which can simplify some work, and the effect is the same.
When installing the equipment of each section in parallel, I think it should be carried out according to the principle of first inside and then outside, first up and then down, and first large and then small.
For example, when the module and equipment enter the cabin longitudinally, temporary supports and slide rails are generally set at the bottom, which occupies more lower space.
After the installation of the cabin equipment is completed, the reassembly of the detachable plate and the extravehicular structure and outfitting parts will begin.
Of course, the outfitting rate should also be increased as much as possible.
That's all for my opinion, thank you!
” Yu Taohong said: "Wang Gong of the technology center spoke very well, and our process room must compile a detailed process design book in accordance with these ideas."
If you still have any suggestions, you can put them forward!
” At this time, Wei Liang of the design unit stood up and said: "The concepts that Wang Gong talked about just now are very advanced, and they are also used by European and American countries.
It's just that although these concepts are very advanced, they should be transformed into actual processes, especially modular design, we have not considered, but whether it is modular design and modular construction process, a lot of calculation and test work are required, but the design and construction of our type of submarine is relatively short, and our navy needs us to deliver this type of submarine as soon as possible, time is not waiting!
We're afraid we don't have that much time!
To achieve modular construction, this is a lot of work. ” Suddenly, everyone present felt that this was like pouring a basin of cold water on everyone's heads, and the previous feeling of boiling blood and gearing up was gone.
Yes, digital shipbuilding, modular design and construction, these are very new technologies, and some of them have not been completely done abroad, which is indeed too difficult.
Yu Tao also said worriedly: "Yes, Wei Gong has a point.
Think about it, is there any other way to shorten our process preparation time?
” Shen Huan stood up and said, "Finite element analysis and manufacturing tests can be used to investigate the requirements of digital, modular construction processes to determine the most effective method for building submarines." ” The eyes of the audience focused on Shen Huan again, and Yu Tao looked at Shen Huan in surprise and said, "Comrade Shen Huan, what are you talking about, finite yuan?"
” Shen Huan nodded and said, "That's right, we can use finite element analysis to solve the problem of workload!"
” Even Na Wei Liang said excitedly: "Finite element analysis, Shen Gong, you also know finite element analysis?"
Why didn't I think of this!
” Shen Huan smiled and said: "As early as the early sixties, the world began to invest a lot of manpower and material resources in the development of finite element analysis programs, but the real CAE software was born in the early seventies, and the past five years are the development stage of the commercialization of CAE software, but it was first applied to our country's aviation industry. ”