Chapter 539: Firepower and Protection? Nothing to say
Hiss~~~~This request made Mr. Yang take a deep breath.

Anyone who has worked on electromechanical products knows that it is not easy to make them bigger or smaller. For this 1 centimeter or so, the requirements for mechanics, electronic components, and design capabilities all increase dramatically.

However, if it can be relaxed to 1.5 cm, the possibility will be greatly increased.

While he was considering, he said, "Okay, let's start thinking about these two things when we get back. Under high vibration, the existing light source may need more reinforcement. And for this small one, the light source may not be small enough."

Most existing light sources have glass shells, so it is not necessary to talk about their performance under vibration.

If you use glue to reinforce the outside, the heat accumulated by the light source will have a great impact on the glue. As for thickening the glass shell, forget it. Why are the shells of light bulbs so thin? It's not to save costs.

It's because the glass is too thick, and the inside and outside expand and contract unevenly due to heat and cold, so it will explode.

And there is another problem, it is more troublesome for the small one.

Gao Zhendong knew his difficulty and said, "For the reinforced one, don't think too much about the light source. For the time being, treat it as a solid-state component that can be directly plugged in and soldered. I have other channels for the light source itself."

"As for the small one, if you really can't find a micro light source, then don't use multiple light sources. Use a single light source with a double-ring detection slit, and use deep wells on both sides of the encoder disk to isolate the inner and outer rings from each other. If necessary, apply a highly reflective layer inside the deep well to increase the light intensity reaching the photosensitive element."

Seeing Gao Zhendong put forward so many suggestions at once, the comrades of Guangyang Factory became more confident. The big one directly took away the most vulnerable part. As for the small one, although each of Mr. Gao's methods seemed to have problems of one kind or another, when combined, it seemed that there was a great possibility of solving the problem.

Mr. Yang showed a delighted look on his face: "Mr. Gao, let's go back and think about it carefully. We must come up with these two things."

In fact, regardless of size, there is another way to use these two encoders, that is to use magnetic sensors, such as Hall sensors.

However, at this time, the Hall sensor is not very good. If it is used to detect the magnetic signal of a small diameter encoder disk, the resolution it can achieve is not high.

Not to mention the domestic Hall sensors, it is still unclear whether they exist or not.

Moreover, the Hall sensor is best used in conjunction with a Schmitt trigger, which can provide better output by utilizing the hysteresis characteristics of the Schmitt trigger.

However, as a commonly used digital logic circuit, Gao Zhendong has not had time to develop the Schmitt trigger yet. As for foreign countries, it was not developed on integrated circuits until the 70s.

If you don't have it, you can build one by force. You need to use an op amp, but domestic op amps are also a problem at this time.

No op amp? You can use transistors to make op amps, but the circuit will become more complicated.

Unreliable sensor + complicated circuit =? Gao Zhendong thought about it and let it go.

Gao Zhendong also relieved their pressure and gave them some sweet treats in response to Mr. Yang's statement: "You should work on the reinforced one first, and then work on the small one after the reinforced one is completed. In addition, don't put these two topics in the previous topic, but make them separate projects. The first one is a universal multi-turn incremental encoder, the second one is a reinforced encoder, and the third one is a micro encoder."

Gao Zhendong is going to use the reinforced type on tanks. Without this dual stabilizer, it may not be stable, or the cost will be too high.

Lao He and his team are still working on the principle design of the tank's dual-stabilization system, and have not yet entered into the actual engineering implementation. Once they get to this step, they will find that they are missing something. As the deputy chief engineer, Gao Zhendong has to prepare for them.

As for the second purpose, Gao Zhendong didn't know what others used it for. Anyway, he wanted to use it to make a mouse. If it couldn't be made smaller in a short period of time or it was too big, he would turn the mouse over and make it into a trackball.

Unlike the optical mice that were all over the ground when Gao Zhendong traveled through time, the earliest mice were mechanical, which were high-density spheres with a relatively large surface friction coefficient that drove the encoder to rotate and obtain a displacement signal.

Because of this, two channels are needed at a time. In simple terms, a mouse moves on a plane, and two orthogonal signals are needed to describe its motion state. The same is true for a trackball, except that the trackball moves on a plane rather than the trackball itself.

There is no rush for this. There are not many graphical applications on computers nowadays. Current machines themselves cannot support graphical applications. We can take it slowly.

Gao Zhendong's words sounded like heavenly music to the comrades at Guangyang Factory.

Adding to an old topic and starting a new topic are two completely different things, you understand.

"Thank you, Mr. Gao! We will definitely do these two things well."

"Well, these two things are both necessary but not urgent. You can take some time to do them. But the design quality must be good and the considerations must be thorough. Don't find out that there are serious problems when you are on stage."

After seeing off the jubilant comrades from Guangyang Factory, Gao Zhendong returned to his office, looked at the computer screen in front of him and smiled.

Tomorrow, the second-generation tank project will be launched.
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Gao Zhendong walked into the meeting room of the Defense Work Committee with ease. Many people had already arrived. When they saw him come in, they all greeted him. Gao Zhendong responded and walked to the group of people from the Grassland Tractor Factory who were preparing to make a report and sat down. Today he was on this side.

The leader of the Defense Work Committee saw him and joked, "Hey, look, our other 'Second General' is here!"

Second General?
Gao Zhendong was joking with his leader, and turned to look at Mr. Luo, the chief designer of the real second-generation tank model who came from the Grassland Tractor Factory, and asked in a low voice: "What do you mean, leader?"

Mr. Luo suppressed his smile and said, "In the mouths of the leaders, the chief designer of the second-generation tank model, regardless of whether he is the chief or the deputy, is referred to as the second chief."

Gao Zhendong finally understood, Leader, the abbreviation shouldn’t be that simple, right?

Some words sound normal as a whole, but they are not so normal when they are abbreviated, just like brothels, tile houses, and terraces, which are three things with a deep connection, but they don’t sound so good when abbreviated.

Seeing Gao Zhendong sitting down, Mr. Luo asked him, "Have you finished reading all the information sent?"

Gao Zhendong nodded: "Well, I've finished reading it and basically understand the situation."

"If anything happens at that moment, you must take action when necessary."

"Well, I'm also a member of the second-generation tanks, no problem. But I don't think I'll have any opinions on the performance. I guess the original armored troops couldn't have thought of these performance indicators."

"Hahaha, this is all thanks to you."

"No, I just made some suggestions. The specific work is still being done by the tractor factory."

The two chatted and laughed, and soon everyone arrived and the meeting began.

The meeting went smoothly overall. Regarding the three major aspects of tanks: firepower, protection, and mobility, as well as the core of firepower and protection - artillery and armor, all parties present had no objections.

Firepower: 105mm smoothbore gun, ESR+ self-tightening barrel, with fin-stabilized armor-piercing discarding sabot projectile as the main ammunition, and fin-stabilized armor-piercing projectile and fin-stabilized grenade as the additional equipment.

Protection - The base armor is made of 592 rolled armor steel or 593 cast armor steel. The high-risk front area is reinforced with modular composite armor, and armor fixing bolts are reserved on the turret and hull top armor.

This reserved armor fixing bolt on the top is an improvement suggestion made by Gao Zhendong to the Grassland Tractor Factory. It is of no use now, but is just kept here. When needed, a heavy explosive counter-attack device can be hung on it.

Since it has not yet entered the detailed design stage and the overall plan has not yet been confirmed, the Grassland Tractor Factory did not provide detailed information on the specific data.

The armored comrades summarized it this way: "Based on the information we have, the firepower of the plan is sufficient to ensure that all the foreign heavy tanks and planned tanks we have at hand can be penetrated at a combat distance of 2000 meters, and at the same time there is a large redundancy. The protection capability of the plan can directly protect the above tanks from all types of ammunition at a combat distance of 2000 meters, and also retains a large redundancy."

At that time, tanks were still classified into heavy, medium and light types. The concept of main battle tanks had not yet become popular. When it came to protection and firepower, heavy tanks were undoubtedly the king. If you could handle it, you could handle the others.

All types of bullets, including armor-piercing bullets, although these were basically only used by John Bull, the comrades at the Grassland Tractor Factory still found a way to try them out.

With the summary of the armored comrades, all participants did not raise any opinions on firepower and protection.

This situation was just as Gao Zhendong had expected. The firepower and protection in the plan were enough to fight against not only current tanks, but also tanks twenty years from now.

The main controversy in major events still arises in the area of ​​maneuverability.

One is the two-stroke diesel engine, and the second is the transmission and suspension system.

Some people think the former is too radical, while others think the latter is too conservative.

"Is it better to use a four-stroke diesel engine instead of a two-stroke one? After all, we already have a copy of the 5DL four-stroke engine. If we modify it, tap its potential, and enlarge it, will it be able to meet the relevant requirements?"

The comrades in charge of power at the Grassland Tractor Factory were well prepared for this: "The two-stroke diesel engine has obvious advantages in terms of power-to-weight ratio and structure. After preliminary tests, the power density of the two-stroke is more than 5 times that of the existing 12DL 150-cylinder 1.4-liter engine. The weight saved is very considerable. In addition, the structure is simpler, which is good for our manufacturing level."

"But the vibration of a two-stroke is very strong. Isn't that bad for the soldiers inside?"

"For this, our deputy chief engineer proposed a special cylinder structure. After testing, the vibration was greatly reduced and can be reduced to a usable level."

(End of this chapter)