Military Technology

Of course, compared to the "Jianmu-2" modified retractable rocket this time, what everyone pays attention to is the experimental spacecraft launched this time.

This experimental spacecraft, code-named Oasis, is a space farm experiment cabin. And, this is an inflatable inflatable space capsule.

So what is an inflatable inflatable capsule? This explanation is a little complicated. Simply put, it is like a balloon, and it is in a retracted state when it is launched. After it is launched into space, it is inflated, and it can expand like a balloon to form a spacecraft with a larger internal space.

This kind of inflatable inflatable space capsule is being researched by countries all over the world at present, and certain results have also been obtained. The inflatable inflatable space capsule that Haoyu Technology will launch this time is a new and improved new generation of technical products based on this foundation.

It sounds like this kind of inflatable inflatable space capsule is very simple. You only need to get a better material, make it into a balloon, and send it to space to blow it up.

But in fact it is not that simple. First of all, all space capsules must consider one issue, that is safety.

The environment in space is relatively complicated. As far as the International Space Station is concerned, it will experience 16 sunrises and sunsets every day (24 hours). That is to say, during these sixteen alternate days and nights, it endured a temperature difference of plus or minus nearly 300 degrees. Under the sun's rays during the day, it has to withstand a high temperature of more than 100 degrees, as well as many harmful sun rays. Without sunlight, it will withstand extremely low temperatures of more than two hundred degrees below zero.

This repeated alternation of high temperature and low temperature will be a severe test for any material. First of all, it is necessary to ensure that the material can withstand the repeated alternation of high temperature and low temperature. Secondly, it is the service life. This repeated alternation of high temperature and low temperature will increase the fatigue of any material, thereby accelerating the aging of the material and greatly reducing the service life.

In addition, this material must be able to resist all kinds of harmful cosmic rays. Our earth is under the protection of the magnetic field and the atmosphere, so it avoids the invasion of various cosmic rays, so that our human beings and life on the earth can survive.

In the universe, without the barrier of the atmosphere, the earth's magnetic field is weakened, or even there is no magnetic field, so it is necessary to rely solely on aircraft to block these harmful rays.

Of course, there is still a big danger in the universe, that is unknown space junk debris. These fragments are very small, maybe a few centimeters, a few millimeters, and it is impossible to monitor and predict them at all.

What's more, there are some fragments of space meteorites, which are more difficult to monitor and forecast. You must know that our earth is being attacked by space meteorites every day. Most of these meteorites will be burned up in the atmosphere as bright meteors. Only a small part It will be included on the ground, which also prevents us humans from being attacked by space meteorites.

In space, these space debris and meteorites at a speed of six to seven kilometers per second have become deadly killers of spacecraft and satellites. Although the chances of this are very small, it is not impossible. According to the relevant log technology of the International Space Station, it has been hit by small space debris and small meteorites many times during the years of its service. Fortunately, no major damage was done.

So for this kind of inflatable inflatable space capsule, it naturally gives people an illusion. Think it's as fragile as a balloon, and if you touch it, it's likely to explode. Even if it doesn't explode, it will deflate like a balloon or a rubber ball.

Moreover, the materials used in the spacecraft space station are metal and composite materials, and the first impression it gives is that it is relatively strong. As for Wu Hao's inflatable inflatable space capsule, the first impression is that it is fragile and somewhat unreliable.

But in fact, this inflatable inflatable space capsule is also made of polymer composite materials.

This kind of material is also mostly used in spacecraft, space stations and spaceships, but what Wu Hao and the others used in this inflatable inflatable experimental space capsule this time is a self-developed polymer composite material. After repeated tests in the simulated environment, this material has achieved a very satisfactory result.

For example, in general, this kind of material is prone to aging, hardening, and loss of toughness in the long-term alternation of cold and hot temperatures. But this material will not, it can maintain heat for a long time in such an environment of alternating cold and hot, and its anti-aging performance is very excellent.

In addition, this new polymer composite material developed by themselves is also very strong. Because of its high strength, it has strong pull resistance and impact resistance.

However, no matter how strong it is, it is difficult to withstand the impact of those space debris at six to seven kilometers per second or even more than ten kilometers per second. Not to mention this kind of polymer composite material, even the hardest metals in the world, chromium and titanium, cannot bear it.

Therefore, human spacecraft did not expect to rely on materials to prevent these debris from hitting, but established an accurate debris detection and prediction mechanism. Monitor the status of debris in space in real time, so as to adjust the orbit of the spacecraft and avoid debris.

Secondly, this is to have good self-healing ability and repair ability. That is to say, after being hit by these debris, the spacecraft can repair itself in time, or quickly repair. Thereby avoiding deterioration of the situation, threatening the safety of the spacecraft, and even the safety of the astronauts inside the spacecraft.

In the imagination of scientists, future spacecraft will have a certain self-healing ability, that is, self-healing ability. A special liquid is put into the interlayer of the spacecraft shell. If the shell is ruptured, the special liquid will quickly collect to the damaged part and solidify, thereby blocking the leaking part of the impact damage.

The technology research and development team of the inflatable inflatable space capsule project used this technology on this inflatable inflatable space capsule.

A special liquid is injected into the polymer composite interlayer of the inflatable inflatable space capsule. When the inflatable inflatable space capsule leaks, this special liquid will block the leak in the shortest possible time. Prevent the internal pressure of the spacecraft and the outflow of air in the cabin.

In addition, the inflatable shell of the expandable inflatable space capsule is made of overlapping materials, which further improves the strength of the expandable inflatable space capsule, and its comprehensive performance has even surpassed that of traditional spacecraft. metal material casing.

Furthermore, the shell of the inflatable inflatable space capsule is still composed of many horizontally and vertically connected inflatable grids pressed by polymer composite materials. This air grid can be folded together to save space when not inflated, and it will collapse when inflated. It unfolds automatically and has strong support.

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