Chapter 1116 Big... **** fish?
Chang Haonan never imagined that one day he would be so shocked by others that he could not even hold a cup steady.
Fortunately, I had already drank more than half of the tea inside, so I didn''t get wet from it——
Chang Haonan had heard in his previous life that China did rely on imported equipment for a period of time in its fifth and sixth generation centrifuges.
Therefore, I am not too surprised about the research on advanced uranium enrichment equipment.
However, with the development of nuclear energy technology in the 21st century, the concentration requirements for nuclear fuel have actually become very relaxed.
Due to cost, safety and environmental protection considerations, the average abundance 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 definitely has nothing to do with "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, 1996, the development and construction of its nuclear forces entered a relatively stable stage for a long time.
To put it bluntly, the size of the nuclear arsenal has not increased much.
On the one hand, the construction and maintenance costs of this thing are indeed too high. Limited military expenditures also require the development of conventional forces with more general uses.
On the other hand, China will only have a few dozen Dongfeng 5A missiles that can hit the main areas of the powerful enemy''s homeland.
Not to mention the single warhead, the accuracy is also very poor.
As for the rest…
The basic Dongfeng 31 is strictly a long-range projectile and can only hit a few targets.
Julang 1 is essentially close to 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, so it can only be regarded as solving the problem...
The several Tu-160s that were brought back before have a far enough range, but the Air Force''s nuclear-related positions have just begun training and construction, and they have not had 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 all before Chang Haonan was reborn.
Furthermore, people generally don’t call the raw materials used in nuclear bombs nuclear fuel.
Therefore, he even confirmed it again:
"Nuclear fuel?"
"Still a high concentration?"
Facing Chang Haonan''s reaction, the two people opposite were not surprised.
Obviously, he was not the first person to show such surprise.
"That''s right."
Qu Liangsheng nodded:
"Of course, the entire plan is still in a very early stage...it''s not even pre-research. The new centrifuge we developed is just a pilot part of it."
At this moment, Chang Haonan seemed to have turned a corner.
"So it''s..."
He did not continue speaking, but simply stretched out his hand and made a slowly downward gesture.
There is almost only one situation where a nuclear reactor will use weapons-grade fuel.
It''s a nuclear submarine.
Compared with nuclear-powered surface ships that can easily 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 reactor used by early nuclear submarines such as the Ohio or Delta needs to be refueled, it must undergo a large-scale "disembowelment"
Not only is the cost high and time-consuming, but the key point is that it will inevitably strain the muscles and bones, which is detrimental to the safety of the operators and the submarine itself. Therefore, some new models of nuclear submarines simply consider having the reactor and the boat have the same lifespan when designing them, so that they do not need to do it twice during their entire service life.
The trade-off is the use of more abundant uranium fuel.
It stands to reason that 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 between the first and second generations of technology.
But we started laying out the most cutting-edge technology so early.
But then I thought about it, if I compare it with the aviation industry system, it seems very reasonable -
China''s pre-research on fourth-generation fighter jets is actually being prepared before the third-generation fighter jets enter service.
Of course, there is a factor in the rapid progress because the starting point is very low, and one can cross the river by feeling for stones, but there is no doubt about the foresight and determination shown by the superiors.
"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 need to pay too much attention to this. The new generation of centrifuges is indeed mainly developed for this purpose...but there are already too many twists and turns in the process. It is not directly related to the three of us, nor is it It will affect your job due to confidentiality."
Although everyone''s business is somewhat confidential after reaching the level of academician, nuclear-related business is still at a completely different level in the final analysis.
That''s really secluded 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. It has many uses and is not limited to the military field... For example, in 1992, the rotor of No. 6 unit of Shaoguan Power Plant appeared The discovery of a large number of cracks..."
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... where is this research 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 researched. 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 multiple critical aspects of the flexible rotor. Co-frequency vibration suppression in the speed range.”
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 ado...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, how about next Monday? ?”
(End of chapter)