Chapter 1446

"What do you mean? China's take-off has a 35 ton vibration test bench?"

As soon as Zhuang Jianye's voice fell, the person in charge of the China evaluation expert group with gray hair, a pair of square glasses and a civilian military uniform asked in surprise: "are you sure it's a 35 ton vibration test bench?"

Not only the head of the China evaluation expert group, but also other expert group members, leaders and heads of the Navy stared at Zhuang Jianye with eager eyes at this moment.

No way, it's really that the 35 ton vibration test-bed is of great significance to the Navy at this stage, especially for shipborne aircraft. The 35 ton vibration test-bed can be said to be a vital test equipment.

We should know that the carrier based aircraft is subjected to greater impact than the land-based aircraft during take-off and landing, and the greater impact force brings greater vibration intensity. Because of this, the structural strength and equipment installation firmness of the carrier based aircraft are much higher than the standards of the land-based aircraft.

The question is whether this high standard can adapt to the actual use of carrier aircraft when taking off and landing, especially when the aircraft carrier lands, the huge inertial impact force generated when the speed of nearly 200 kilometers per hour suddenly drops to 0 can be loaded on the fuselage. Under such repetition, how to ensure the service life of tens of thousands of hours of carrier aircraft?

This requires a complete set of vibration test equipment to detect the vibration strength of each system of the carrier aircraft in different environments, and even the vibration of the whole carrier aircraft needs the vibration test equipment to check. On this basis, the deficiencies of each subsystem are improved and upgraded.

This shows the importance of this kind of vibration test-bed. It can be said that without this kind of equipment, it is difficult to build qualified shipborne aircraft. Because of this, developed countries have always banned vibration test-bed with more than 10 tons.

In addition to a series of aviation products such as shipborne aircraft, land-based aircraft and aeroengines need vibration test-bed to verify their structural performance, a series of aerospace products also rely on vibration test-bed to ensure their reliability.

Because the takeoff weight of both civilian launch vehicles and military long-range missiles is more than 100 tons. The huge thrust of the rocket engine often leads to huge vibration of various components in the rocket. If a screw is shaken off and a line is broken at this time, the whole rocket or missile may be directly damaged.

Such mistakes in the history of space launch can be described as numerous. In order to reduce the relevant errors, we must have a large tonnage vibration test-bed to find design or process defects in continuous tests, and finally improve the reliability of rockets or missiles.

Because of this, limiting the large tonnage vibration test-bed is tantamount to limiting the development of a country's aerospace industry. After all, things with low reliability are not threatening at all.

For example, the medium range missile in New Delhi is almost a second kick, not to mention the actual combat ability. If you can hit it safely, thank tianniu for its care.

There are also Iranian missiles, which are equally unreliable.

The reason for this is the lack of large tonnage vibration test-bed, unable to obtain reliability data, limited national strength and no determination to achieve the goal. In the end, we can only get a pot of raw rice.

In China, it is not as embarrassed as New Delhi and Iran, but the overall level is not high. At present, the largest tonnage vibration test-bed is only 18 tons. As the treasure of a space academy, it is used for the development of an improved model of a long-range missile.

Such a high standard of key units is the case, and the situation of other units can be imagined. A 10 ton level can be regarded as a local tyrant.

For example, the reason why northeast aviation industry group is very confident in Shipborne aircraft is that it imported a 10 ton vibration test-bed from abroad in the 1990s.

For this vibration test-bed, northeast aviation industry group has spent a lot of money, spent its five-year accumulated foreign exchange limit and bought it from the UK at a high price of US $75 million.

If converted into gold, the money can buy almost 10 tons of gold ingots.

Yes, you are right. The price of a 10 ton vibration test bench is the same tonnage and the same gold.

There was no way why it was so expensive. At that time, China was relatively backward in this regard. It could only produce 10 ton mechanical test-bed, which not only had poor accuracy, but also could only do regular vibration tests up and down, and irregular vibration tests in other directions could not be done at all.

Since domestic products are not as good as foreign ones, others will naturally open their mouths and bite.

However, in any case, northeast aviation industry group has become a leader in the domestic aviation industry in vibration test at all costs. On this basis, northeast aviation industry group has great confidence in undertaking the development task of Shipborne aircraft.

No way. Looking at other domestic aviation enterprises, there is no second one who can do the ten ton vibration test except northeast aviation industry group, which can be said to be the most plus for the shipborne aircraft bearing great impact.

Of course, seeing that the vibration test-bed has many advantages, northeast aviation industry group naturally wants to install similar equipment with larger tonnage, so it can get twice the result with half the effort in the development of Shipborne aircraft. However, the developed countries are just like discussing, and the vibration test-bed with more than 10 tons is not sold at all, let alone the same tonnage and the same gold, Even if you give several times of gold, people also smile and let you roll as far as you can.

In desperation, northeast aviation industry group can only return bitterly, but they are not discouraged. After all, they are still the only aviation enterprise with a 10 ton vibration test-bed.

The reason why it is obvious is that China's take-off vibration test-bed has not been made public, and now it can be made public with the approval of the machine. As a result, in contrast, the 10 ton vibration test-bed that northeast aviation industry group is proud of for several years is not even a brother in front of China's take-off.

That's a 35 ton vibration test rig. So far, the world's largest tonnage vibration test rig. Before, only NASA obtained this large tonnage vibration test rig two years ago for vibration tests of heavy launch vehicles, advanced aircraft and space station segments.

Unexpectedly, China Tengfei also has such a large vibration test-bed?

Therefore, compared with the simple surprise of the experts of the China evaluation expert group and the leaders and heads of the Navy, Huang Feng and other people of northeast aviation industry group were really shocked.

It is actually the world's largest and most advanced 35 ton vibration test-bed. If so, what advantage does northeast aviation industry group have? It is basically rubbed on the ground by China's take-off!

"Impossible... Impossible... The 35 ton vibration test bench is severely embargoed abroad. You can't buy it at any cost. How can you take off in China?"

The core technical leader of northeast aviation industry group, who questioned Tang Lili's shipborne aircraft development cycle, finally couldn't help but question Zhuang Jianye.

Zhuang Jianye smiled: "the reason why China's take-off has developed so far is to constantly break the so-called 'impossible'. What's the matter with the embargo? Believe it or not, we'll take-off in China to embargo them in a few years?"