Chapter 539 Firepower and protection? Nothing to say
Hiss~~~~This request made Mr. Yang take a breath.
Anyone who has worked on electromechanical products knows that it is not easy to make it big, nor is it easy to make it small. At about 1 centimeter, the requirements for mechanical, electronic components, and design capabilities have risen sharply.
However, if the width can be relaxed to 1.5 cm, the possibility will be greatly increased.
While thinking about it, he said: "Okay, we will start to consider these two things when we get back. Under high vibration, the existing light source may need more reinforcement methods. And the small one, I’m afraid the light source is not small.”
There are many existing light sources, and they are basically made of glass shells. The performance under vibration is not mentioned.
If glue is used for external reinforcement, the heat accumulation of the light source will also have a great impact on the glue. As for the method of thickening the glass shell, forget about it. Why are the shells of light bulbs so thin? Not to save costs.
But because the glass is thicker and the inside and outside heat and cold expand unevenly, it will explode.
And there is another problem: for the small one, it is more troublesome.
Gao Zhendong knew his difficulty and said: "Don't think too much about the reinforced light source. For the time being, treat it as a solid-state component that can be directly plugged in and welded. I have other light sources themselves. Channel.”
"As for the small one, if you really can't find a micro light source, then you should not use multiple light sources. Use a single light source with a double-ring detection slit, and use deep wells on both sides of the encoding disk to isolate the interaction between the inner and outer rings. If necessary, deep wells The interior is coated with a highly reflective layer to increase the intensity of light reaching the photosensitive element."
Seeing Gao Zhendong put forward so many suggestions at once, the comrades in Guangyang Factory became more confident. This big one will directly remove the most vulnerable ones. Partially taken away. As for the small one and Mr. Gao's methods, although each of them seems to have problems of one kind or another individually, when combined, it seems that there is a great possibility of solving the problem.
Mr. Yang looked happy: "Mr. Gao, let's go back and think about it carefully, and we must get these two things out."
In fact, no matter how big or small, there are still these two encoders. One way is to use magnetic sensors, such as Hall sensors.
But at this time, the Hall sensor was not very good. If it was used to detect the magnetic signal of the small-diameter encoder disk, the resolution it could achieve was not high.
Not to mention the domestic Hall sensors, there are still two questions.
And the Hall sensor is best used with a Schmitt trigger. Using the hysteresis characteristics of the Schmitt trigger can obtain better output.
But as a type of commonly used digital logic circuit, Schmitt trigger has not yet been developed by Gao Zhendong. As for foreign countries, it was only developed on integrated circuits in the 1970s.
If not, it is not impossible to build it by force. Then you have to use an op amp, but at this time, domestic op amps are also a problem.
No op amp? You can also use transistors to make up an op amp, but the circuit becomes more and more complicated.
Unreliable sensors + complex circuits =? , Gao Zhendong just think about it.
Regarding Mr. Yang’s previous statement, Gao Zhendong also tried to relieve their pressure and give them some sweetness: "You guys do this reinforced one first, and then you do this little one after the reinforced one is done. In addition, just Don’t put these two topics in the previous topic. They are separate items. The first is a universal multi-turn incremental encoder, the second is a ruggedized encoder, and the third is a micro encoder. "< br>
The reinforced type, Gao Zhendong plans to use it on tanks. Without this bi-stable thing, I am afraid it will not be very stable, or the cost will be relatively high.
Lao He and his team are still working on the principle design of the bi-stable tank, and have not yet entered into the actual engineering implementation. When they enter this step, they will find that they are lacking something. As the deputy chief engineer, Gao Zhendong has to prepare for them.
As for the use of the second one, Gao Zhendong doesn’t know what others use it for. Anyway, he wants to use it to make a mouse. If it is too small or too big in a short time, then turn the mouse over. , make a trackball.
Unlike the optical mice that were all over the place when Gao Zhendong traveled through the world, the earliest mouse was mechanical. It was a high-density sphere with a relatively large surface friction coefficient, which drove the encoder to rotate and obtain a displacement signal.
Because of this, two channels are needed at one time. Simply put, the mouse moves on a plane. Two orthogonal signals are needed to describe its movement state well. The same is true for trackballs, except that the trackball moves the plane rather than the trackball itself.
There is no need to rush this thing. There are not many graphical applications for computers now. The current machines themselves cannot support graphical applications. It is okay to take your time.
Gao Zhendong’s words sounded like sounds of nature to the ears of the comrades in Guangyang Factory.
Adding to old topics and opening new topics are completely different things, everyone understands.
"Thank you, Mr. Gao! We will definitely do these two things well."
"Well, these two things are needed but not urgent. You can wait longer. But the quality of the design must be good, and the considerations must be thorough. Don’t find out about the big problems that were carried in the mother’s womb when the time comes.”
After seeing off the cheerful comrades at the Guangyang Factory, Gao Zhendong returned to the office and looked at it. He looked at the computer screen in front of him and smiled.
Tomorrow, the second-generation tank project will be approved.
——
Gao Zhendong entered the meeting room of the National Defense Work Committee with ease. Many people had already arrived. When they saw him entering, they all greeted him. Gao Zhendong responded while walking to sit down among the people at the Prairie Tractor Factory who were preparing to give a report. Today he was at this end.
The leader of the Defense Working Committee saw him and joked: "Hey, look, our other 'Second General Manager' is here!"
Second General Manager?
While chatting with the leader, Gao Zhendong turned to look at Mr. Luo, the real second-generation tank model chief engineer who came from the Prairie Tractor Factory, and asked in a low voice: "What does the leader mean?"
Mr. Luo suppressed a smile: "In the leader's mouth, the commander-in-chief of the second-generation tank model, regardless of the chief or deputy, is referred to as the second commander."
Gao Zhendong only then understood that the leader, the abbreviation is not that simple. Bar?
Some words sound normal as a whole, but when abbreviated, they are not so normal. Just like the foundation of a brothel, there are three things that are deeply related, but it is not very good when abbreviated.
Seeing Gao Zhendong sit down, Mr. Luo asked him: "Have you read all the information distributed?"
Gao Zhendong nodded: "Well, after reading it, I basically understand the situation. ”
"If something happens at that moment, you have to take action when you should."
"Well, I am also a member of the second-generation tank, no problem. But I guess there will be nothing in terms of performance. Opinions, these performance indicators are probably not expected by the armored soldiers."
"Hahaha, this is all your fault."
"No, I just mentioned some. I suggest that the specific things are being done by the tractor factory.”
The two were chatting and laughing, and not long after everyone arrived, the meeting began.
Overall, the meeting went relatively smoothly. Regarding the three major areas of tank firepower, protection, and mobility, all parties involved in the meeting had no opinions on the core of firepower and protection—artillery and armor.
Firepower - 105mm smoothbore gun, ESR+ self-tightening barrel, with fin-stabilized discarding sabots as the main ammunition, and fin-stabilized armor-piercing projectiles and fin-stabilized grenades.
Protection - 592 rolled armor steel or 593 cast armor steel is used as the base armor. The high-risk areas on the front are reinforced with modular composite armor, and armor fixing bolts are reserved for the turret and car body top armor.
The armor fixing bolts reserved on the top of the head are Gao Zhendong's improvement suggestions to the Prairie Tractor Factory. They are of no use now, they are just kept. When needed, heavy explosive counterattacks can be mounted on them.
Since it has not yet entered the detailed design stage and the overall plan has been confirmed, Prairie Tractor Factory has not provided detailed information on specific data.
Comrade Armored Corps summed it up this way: "Based on the situation we have, the firepower of the plan is sufficient to ensure that it can penetrate all foreign heavy tanks and planned tanks currently in our hands at a combat distance of 2,000 meters. It also has a large redundancy." The protection capability of the plan can protect the above-mentioned tanks from all types of ammunition at a combat range of 2,000 meters, and also retains a large redundancy. "
At this time, the classification of tanks is still biased towards heavy and medium. , In light terms, the concept of main battle tanks has not yet become popular. When it comes to protection and firepower, heavy tanks are the undoubted king. If you can handle it, you can handle everything else.
All types of ammunition, including armor-breaking ammunition, although basically only John Bull is using this thing, the comrades of the Prairie Tractor Factory still tried their best to try it.
With the summary from the armored comrades, all participants did not have any opinions on firepower and protection.
This situation is as expected by Gao Zhendong. The firepower and protection in the plan will not be able to deal with current tanks, but they will still be capable of fighting in a battle twenty years from now.
The main controversy regarding major items still arises over mobility.
One is a two-stroke diesel engine, and the second is the transmission and suspension system.
For the former, some people think it is too radical, and for the latter, some people think it is too conservative.
“Is it better to use a four-stroke engine for this two-stroke diesel engine? After all, we already have an imitation 5DL four-stroke engine. Let’s modify it on that basis, tap the potential, and enlarge it. Can it also meet the relevant requirements? "
The power comrades of the Prairie Tractor Factory have been prepared for this: "After preliminary tests, the two-stroke diesel engine has obvious advantages in terms of power-to-weight ratio and structure. The power density is more than 1.4 times that of the existing 5DL 12-cylinder 150-liter engine. The weight saved is very considerable, and the structure is simpler, which is good for our manufacturing level.”
"But the vibration of the two-stroke is very large. Isn't it not good for the soldiers inside?"
"For this, our deputy chief engineer proposed a special cylinder structure. After testing, the vibration was greatly reduced. can be reduced to a usable level"
(End of this chapter)