"It's good to understand. Jiang Chen looked at a few people and smiled. The people in front of him are all children of the factory, and they are also the children of cadres, Jiang Chen originally had no good impression of them, because the preconceived concepts of later generations have made Jiang Chen label them. But after such a long period of contact, these friends, these brothers are really good. They understand what is important, what is right and wrong, and more importantly, they firmly believe in justice, which is precious to the children of cadres.

"It's just a matter of the transmission. Dongzi continued: "Because it is an off-road vehicle, and it is a military standard, the requirements for all aspects are very high. This chassis, in particular, is in the middle. You know that the body of this car currently has two major classifications in the world, namely the load-bearing body and the non-load-bearing body. The load-bearing body, excellent diǎn is simple in structure, easy to achieve low chassis, spacious interior space, low cost, so many cars are adopted. The lack of diǎn is the poor rigidity of the body, especially the torsional resistance. Off-road vehicles need to output more torque to climb mountains, and this structure is obviously not suitable. The problem of the structure, the space for retrofitting and upgrading is not very large. To cope with relatively large intensity off-road, it is still necessary to choose a car body with a girder structure, that is, a non-load-bearing structure. In this way, two steel beams are added to the body structure, and the body shell is not subjected to torsion, so that the convertible can be realized, and the doors can be opened in any position of the body. Now most of the off-road vehicles are this kind of structure. The excellent non-load-bearing body is strong torsional resistance and strong body, even if there is a relatively strict collision, it is difficult to hurt the body structure. The lack of diǎn is also obvious, the self-weight is large, and the girder will squeeze the interior space. The manufacturing cost is also relatively high. And the potential of this conversion package is very free, and it can be adapted to different body and model modifications. In other words, after having this chassis, it is not a problem for us to develop other off-road models. ”

"Yes, Dongzi, I haven't learned much these days. Even this load-bearing body and non-load-bearing body are known. Jiang Chen joked with a smile.

Dongzi also laughed and said: "I'm playing a big knife in front of Guan Gong, that is, these days, I know a diǎn fur, and I show it off in front of you." ”

Jiang Chen shook his head and said, "It's already very unprofessional, this is very good." As a manager, if you can understand our research projects, "dǐng" diǎn "small" said, .2∞3.◎os_(); Then it will better control the direction of enterprise development. We have done a good job in this area, and we will continue to persevere. ”

"Good. "Dongzi diǎndiǎn head road.

"Yes. Jiang Chen looked at Dongzi and asked, "Then what stage is the progress of our research on the territory of off-road vehicles?" Tell me, so I have a bottom in my heart. ”

Dongzi shook his head and said, "It's not going very well. You know that the transmission we talked about before is a structure in the chassis, which belongs to this transmission system, and like him, there are also equipment devices such as clutch, universal transmission, final reducer, differential and half shaft. Together, they are responsible for the transmission of power from the car's engine to the driving wheels via the drive train. Responsible for the deceleration, speed shifting, reversing, power interruption, wheel differential and axle differential functions of the whole car, and work with the engine to ensure the normal driving of the car under various working conditions. Like the problem we encountered on this transmission, it is still a problem of mechanism design. What kind of structure is the safest and most reliable, and what kind of structure is difficult. This is a very complex technical problem. There is another problem that is also our old problem, that is, this and material problems. What should be the characteristics of the material in that area. Whether it requires strength or toughness, or sturdiness, these are all questions that we need to study and solve. And most importantly, whether our material can achieve the strength and toughness that it can withstand, these are also things that we need to study. This is also a weak diǎn of our new factory, that is, everything has to start from scratch. Unlike some large factories that have been established for many years, they have a large amount of technical accumulation, and what they need can be directly retrieved from their technical database and used directly. The whole designer only thinks about this structure and style. Unlike our technicians, there are so many things to consider. ”

"Well, we do have a problem like zài, this is the reality. But we also have an advantage, which is that we can draw on the manufacturing experience and technology of many successful car designs, which is our weakness on the one hand, and our advantage on the other. So don't be so pessimistic, our nation is a nation that is good at learning, and I believe it won't be long before we catch up. Jiang Chen smiled and comforted. Jiang Chen, who came from later generations, knew that in later generations, we did start to rise like this, and many things were learned from abroad, and then we caught up, and then surpassed. The most famous ones are the high-speed rail and the Su-27 we produce. Our high-speed rail is the first technology to be introduced from the Japanese country, and then it is being learned, then imitated, innovated, and finally directly surpassed to reach the world's leading position. This has developed into a new business card of our country. When it comes to high-speed rail, we must mention our country, which can be said to have become the pride of the Chinese people. There is also a very famous example in the military industry, that is, the Su-27 fighter we imported from the Su*, from the very beginning, then to buy parts for organization, and then make part of the localization, and then carry out development and innovation. In the future, except for the old and difficult engine problems, the other parts have all been made by ourselves. And the overall performance of this fighter is already shaking ahead of the original Su-27 fighter and its development model. The current Russia is a little reluctant to sell fighter planes to our country, because they are afraid that their technology will soon be learned by us and then surpassed.

"I understand. Dongzi diǎndiǎn head said: "Other problems, as mentioned before, these are the same, and the biggest problem we have now is the problem of materials. For example, the frame, axles, wheels and suspension of this off-road vehicle are composed. The frame, axles, wheels, and suspension of automobiles are all slow to progress because of this material problem. In terms of structural design, we can say that because we can learn from the design of other vehicles, but in terms of this material, there is no way. This aspect is something we can't intuitively understand. Moreover, this information is also strictly confidential by various companies and even in the country, and we have no way to obtain it. Even if we buy it with money, people won't sell it to you. Even if it is sold to us, it will be sold at a sky-high price. ”

With Dongzi's story, a solemn atmosphere filled the office, and everyone frowned, falling into deep thought one by one. (To be continued.) )