Chapter 1116 Big Black Fish?

Chapter 1116 Big...Big Black Fish?

Chang Haonan never thought that one day he would be so frightened by others that he couldn't even hold the cup steadily.

Fortunately, he had already drunk more than half of the tea in it, so he didn't get wet.

Chang Haonan had heard in his previous life that China did rely on imported equipment for a period of time for the fifth and sixth generations of centrifuges.

So he was not surprised by the research on advanced uranium enrichment equipment.

But the development of nuclear energy technology to the 21st century has actually made the concentration requirements of nuclear fuel very relaxed.

For cost, safety and environmental considerations, the average enrichment of fuel rods used in nuclear power plants is generally between 2% and 5%.

Even if it is higher, it will basically not exceed 10%.

It is definitely not related to "high concentration".

Generally, only weapons-grade enriched uranium can reach 90%, or even more than 95%.

But as we all know, after China conducted its last nuclear test on July 29, 1997, the development and construction of nuclear power entered a relatively long period of stability.

To put it bluntly, the size of the nuclear arsenal has not increased much.

On the one hand, the cost of building and maintaining this thing is indeed too high, and limited military funds must be used to develop conventional forces with more general uses.

On the other hand, China now has only a few dozen Dongfeng 5A missiles that can hit the main areas of the enemy's homeland.

Not to mention the single warhead, the accuracy is also very sorry.

As for the rest...

The basic Dongfeng 31 is strictly speaking just a long-range missile, which can only hit a few targets.

The JL-1 is essentially close to the Dongfeng 21, with a range of less than 3,000 kilometers, and the performance of the 09II nuclear submarine is not enough to break through the island chain and enter the launch position, which can only be regarded as solving the problem of whether there is a problem or not...

The range of the Tu-160s brought back before is long enough, but the air force's nuclear-related positions have just begun training and construction, and there is no time to form combat effectiveness.

Moreover, the survivability of non-stealth aircraft...

In short, the nuclear delivery capability is extremely limited.

And the next real expansion! Nuclear!

That was before Chang Haonan was reborn.

Besides, people generally don't call the raw materials used in nuclear bombs nuclear fuel.

Therefore, he even confirmed it again:

"Nuclear fuel?"

"Or high concentration?"

Faced with Chang Haonan's reaction, the two people on the opposite side were not surprised.

Obviously, it was not the first person to show such surprise.

"That's right."

Qu Liangsheng nodded:

"Of course, the whole plan is still in a very early stage... It's not even a preliminary research. The new centrifuge we developed is just a pilot part of it."

At this time, Chang Haonan seemed to have turned a corner.

"So it is..."

He didn't continue to speak, but just stretched out his hand and made a slowly downward gesture.

There is almost only one situation in which nuclear reactors use fuel with weapon-grade concentration.

That is nuclear submarines.

Compared to nuclear-powered surface ships that weigh tens of thousands of tons, the design of nuclear submarines is obviously much more compact, and it is impossible to reserve enough space for refueling operations.

Therefore, if the low-concentration reactors used in early nuclear submarines such as Ohio or Delta need to be refueled, they must undergo a large-scale "disembowelment".

Not only is the cost high and time-consuming, the key is that it is inevitable to cause damage to the operator and the safety of the submarine itself.

Therefore, some new models of nuclear submarines simply consider making the reactor and the submarine have the same life when designing, so that there is no need to do it twice during the entire service life.

The price is to use uranium fuel with higher enrichment.

In theory, this is a technology that will only be widely deployed on fourth-generation nuclear submarines such as Virginia/Borey.

In 2003, China's 09I and 09II are actually still at the level of the first and second generations.

But it has started to lay out the most cutting-edge technology so early.

But on second thought, if compared with the aviation industry system, it seems very reasonable-

China's pre-research on the fourth-generation fighter was actually prepared before the third-generation fighter was put into service.

Of course, the rapid progress is due to the low starting point, which allows us to cross the river by feeling the stones, but the foresight and determination shown by the superiors are unquestionable.

"Ahem——"

Qu Liangsheng cleared his throat:

"It should be said... including but not limited to..."

At this time, Academician Lu, who had not spoken for a while, continued to explain:

"Academician Chang, you don't have to care too much about these. The new generation of centrifuges is indeed mainly developed for this purpose... But there are too many detours in the middle, and there is no direct connection between the three of us, and it will not affect your main job because of confidentiality."

Although everyone's business is more or less confidential when they reach the level of academician, nuclear-related business is ultimately a completely different level.

That is really isolated from the world.

So Lu Yongxiang should think that Chang Haonan is worried about this:

"As far as the electromagnetic bearing-flexible rotor system itself is concerned, it is still an open project with many uses, not limited to the military field... For example, in 1992, a large number of cracks were found on the rotor of Unit 6 of Shaoguan Power Plant..."

However, Chang Haonan was just curious and surprised. In fact, it was not as complicated as he thought, so he just waved his hand to express his understanding.

"So...how far has this research progressed now?"

In fact, he was basically ready to agree.

But before that, we have to understand the situation again.

"There are several key points that are currently being tackled. One is the design of the electromagnetic bearing controller... Of course, Academician Chang, you may have already achieved some results. The second is the mathematical model and dynamic characteristics analysis of the cracked rotor system. The third is the analysis of multiple flexible rotors. Co-frequency vibration suppression in the critical speed zone.”

Qu Liangsheng replied:

"However...except for the first item, the next two parts only require some equipment support and will not have an impact on the projects you are currently working on..."

He obviously followed the general idea of ​​"asking people to cooperate". First of all, he said that he would not delay the other party's normal work, but only provided as much help as he could.

But Chang Haonan doesn’t think so:

"No!"

He just slapped his thigh, and his fierce reaction shocked the other two people:

"We definitely hope to get more involved in such a significant project, so that it can be applied to a new generation of aviation engines and gas turbines in the future...Besides, there are some parts that I am good at..."

"For example, what Academician Qu just said about co-frequency vibration suppression, I think we can build a dynamic model of the electromagnetic bearing-flexible rotor system, analyze the linear active disturbance rejection controller and the phase offset least mean square algorithm, and then think about it. Find a way to solve the problem by finding a disturbance tracking compensation method based on the minimum mean square of phase offset..."

"..."

If it were left to ordinary technicians, this might not be able to keep up with Chang Haonan's ideas.

But after all, the two people opposite are also experienced bosses, so they can naturally judge that what he said is indeed feasible.

In fact, this is one of the solutions they are trying.

Therefore, Lu Yongxiang, who had a solemn expression just now, waiting for Chang Haonan's response, finally smiled:

"Look, Academician Chang, when will we hold a more formal technical seminar for the project team?"

Chang Haonan glanced at the perpetual calendar hanging next to him:

"Without further delay... I will return to Haojing in two days. It just so happens that the main research resources of the Aerodynamics Group are currently concentrated in Haojing and Shengjing, so if you two have time, why not come next Monday? how?"