Chapter 316 Then increase the charge
Although there is no practice, the two of them are still very familiar with the theoretical things, and it can be said that in this regard, Gao Zhendong is not only foresighted, but also well-informed Besides the advantage, he is still a student in front of these two people.
After listening to Gao Zhendong’s analysis of the principles, the two of them had already analyzed the feasibility of this technical route in their heads, and they even thought of more.
Qi Gong only needs to make anti-ship missiles for the time being, but Mr. Qiu, who is responsible for and participates in many tasks in the unit, has a lot to consider.
He is very keenly aware that this technology, whether it can be done well or not, is an important missile guidance technology direction in the future, and its application prospects are far beyond just anti-ship missiles.
There is no need for Gao Zhendong to continue talking about anything else, let alone whether he can get the DJS-60D. Just based on Gao Zhendong's words, this trip is extremely worthwhile.
He even put aside other things and started discussing the pros and cons of this technology.
“In this method, the gyroscope is directly installed on the missile body structure and moves with the missile body. The dynamic range requirements of the gyroscope are much larger than those used on the platform.”
Gao Zhendong nodded: "Yes, but this is not a big disadvantage, especially compared to the benefits it brings, and the movement trajectory of the anti-ship missile is not violent. Appropriately improve the gyroscope and optimize the ballistics." The profile can be solved even under the current technical conditions.”
In fact, the more violent the motion trajectory, the more suitable it is for strapdown inertial navigation, because there is no platform system and there is no need to consider the problem of frame locking. , so compared with the inertial platform system, strapdown inertial navigation can work in all directions.
Gao Zhendong said this earlier mainly to solve the problem of not knowing how large the dynamic range of the gyroscope can be in the short term.
“Well, that makes sense, but the calculation amount of this method is not as large as usual.”
Unlike the output signal of the inertial platform, which can be used for guidance directly or through simple conversion, Strapdown inertial navigation requires a large amount of calculations to output control signals, which in principle involves the calculation of a large number of differential equations.
This is also the reason why all kinds of tactical missiles generally used platform inertial navigation for inertial navigation before there were miniaturized and miniaturized computers. You don’t know if they didn’t have that capability. Not to mention the distance, there is a small inertial platform on the Red Sword-73.
This is a typical example of exchanging technical advantages for performance characteristics. You must have an advanced computer to use this technology to reduce system complexity, cost, maintenance, improvement of working conditions and other optimization of a series of characteristics.
But when he said this, Mr. Qiu himself laughed. Isn’t this the strength of DJS-60D? When we talk about this matter, isn’t it because of its computing power and not knowing how to use it? This problem arises , skip skip.
“Under the current conditions, this technology has many sources of accumulated errors and a large amount. It still needs a good gyroscope to be perfect.” After writing and drawing in his notebook for a while, Mr. Qiu said achieve their ideal goals.
However, Qi Gong didn't care about this problem: "Mr. Qiu, you are dealing with many types of models, so you need to consider them carefully, but for me, I only have an anti-ship missile, which is not that complicated. I There is also radar guidance here, and the inertial navigation is just about the same.”
If other missiles still need to make a lot of efforts and improvements on the gyroscope to solve the error problem, then For him, under the existing technical conditions, this technology is really suitable.
Because a considerable part of the error can be compensated in the calculation process of the computer after rigorous testing and calibration of the gyroscope, without the need for major surgery on the gyroscope itself.
Probably, I know the error of this thing itself, and I also know the error caused during the movement. Hey, I calculate these errors back during the calculation process.
This technical method, without a real missile-borne computer, is very difficult, almost to the point of having no practical value.
Mr. Qiu smiled and joked: "Old Qi, you have such a bad idea of cleaning up the snow in front of your own door and not caring about the frost on other people's tiles, haha."
I can see it. , he was in a very good mood.
This is not nonsense. In this situation, no one will be in a bad mood.
Su Weihua couldn't get in the middle of this discussion. As a newcomer who had only been assigned to the unit for less than a year, he was not involved in inertial navigation. He hadn't even mastered the platform inertial navigation yet. The entire altimeter was enough for him. Busy work.
He just watched with admiration as Gao Zhendong's casual words made his model chief engineer and subsystem chief engineer fall into ecstasy, and they held a technical seminar on the spot.
No comparison, no comparison.
This old classmate has no creative bottleneck at all.
A few people discussed this for a while, before Qiu and Qi put down the pens in their hands with a look of satisfaction.
"Consultant Gao, Lao Qi, this is a good idea. We will follow this idea. If nothing else, I estimate that the degree of weight loss should be calculated at the level of 100 kilograms."
"Mr. Qiu , Not only that, but with this alone, the missile’s response speed has been improved by more than one level, the preparation time of the inertial platform has been greatly reduced, and there are a lot of other manufacturing and maintenance benefits.”
To sum up: this technology is new and good! Mr. Qiu said happily: "Oh, after losing so much weight, I have to think about how to use this weight. It's really troublesome, hahaha."
This is not entirely a joke. , weight reduction comes, which means that compared with the imitation object, the weight has changed, the center of gravity has changed, the center of mass has changed, the structure has changed, the load-bearing parts are different, and the size may also have changed
These will all affect the overall design of the entire bomb.
This is really not about keeping the original appearance, just digging out a piece of the inside and throwing it away.
In the past, some equipment had lost hundreds of kilograms in weight due to advances in electronic equipment. Because the cost of reprocessing was more costly than the gain, in the end, the weight was simply put back using counterweights.
This approach is not entirely lazy. It has at least improved the sophistication of electronic equipment, reduced the complexity of the system, and improved some other aspects of performance. It just gives up the benefit of weight loss. The benefits are already many.
Engaging in practical engineering application research is inherently a process of trade-offs, and knowing how to give up appropriately is not necessarily a bad thing.
Having said that, Mr. Qiu's words were still seriously suspected of being a good deal. All the workers looked at Gao Zhendong with an embarrassed look, and the main message should be "Our boss is like this, he loves to joke, don't you think so?" Bear with me."
Gao Zhendong said smoothly: "Well, this is indeed a moderate problem. My personal suggestion is to increase the charge!"
The warhead that was originally "fighting for the first", It is a 500kg shaped energy blast warhead, which is similar to the principle of shaped energy armor piercing. However, it does not rely on metal jets, but relies on gathering blasting energy.
So the appearance of the two is very different. The shaped cover of the shaped energy piercing armor is like a deep funnel, while the shaped cover of the shaped energy blasting one is much shallower. Gao Zhendong has never seen the warhead of the "Zhengxian No. 1", but he has seen the warhead of the "Flying Eagle-2". It is round and quite cute.
Mr. Qiu asked with great interest: "Advisor Gao, why not increase the range?"
Gao Zhendong laughed and said: "We currently lack relay means. We can hit that far, but we can't see that far."
Mr. Qiu laughed loudly: "It makes sense, I will add it up later."< br>
This matter is almost the same. Gao Zhendong turned around and talked about another application: "With computers, missile daily maintenance testing, pre-launch preparation testing and other aspects can be more automated, and can be directly used The missile-borne computer controls the relevant systems, tests them by itself and transmits them to the command system through the data interface, so the workload of the personnel is much smaller.”
In fact, everyone is using this technology, but they may not realize it. The most typical example is the driving computer of our car, which relies on a series of self-checks at startup and reading of fault codes during maintenance at the auto repair shop.
It’s not impossible to do it without a computer, it’s just that the cost is higher.
This can be regarded as a benefit of chasing rabbits. Anyway, they are already on the computer, so it is not bad to do it by the way.
Qi Gong didn’t have much impression, as he would not seek to do his job if he was not in his position, but Mr. Qiu thought this was a good idea. As the model chief engineer, maintainability was also a major aspect he had to consider.
Online combat effectiveness and actual combat effectiveness are completely different things. Actual combat effectiveness is inseparable from training and maintenance.
For example, under the WPC, the six anti-aircraft destroyers on paper are actually pulled out and cannot even walk across the bathtub in the Mediterranean. They all have to go back to their hometowns. It can be said that they are humiliated and thrown into grandma's house.
After discussing these directions for a while, Gao Zhendong also came up with functions such as comprehensive control, ground equipment coordination, etc. What he finally said was that he returned to the guidance: "In fact, it needs to be used in I don’t think the guidance on the missile can’t be used.”
What is the biggest flaw of the 544 as a copy object? It’s not miniaturization, range, or hit rate, but anti-interference ability.
Basically, as one of the earliest anti-ship missiles, its anti-jamming ability is so poor that it can be blinded in a flash.
This is related to the fact that it used early radar technology and the radar hardware foundation was poor.
This is also one of the reasons why Gao Zhendong did not connect this thing in the direction of radar signal processing at the beginning. The existing one is enough, and if this thing is upgraded, the improvement may not be much.
In fact, even decades later, if infrared terminal guidance and other terminal guidance technology are not added, the electronic confrontation between missiles and warships will always be dominated by warships. It has never been good at confrontation.
The reason is not difficult to explain: power.
In the parlance of the photography industry, this is called "a big bottom that crushes people to death".
(End of this chapter)