Of course, compared to this time's Jianmu-2 retractable rocket, what everyone is paying attention to is the experimental spacecraft launched this time.
This experimental spacecraft, codenamed Oasis, is a space farm experimental cabin. Moreover, this is an inflatable space capsule.
So what is an inflatable inflatable space capsule? The explanation is a little complicated. To put it simply, it is like a balloon, which is folded when launched. After it is launched into space, it is inflated so that it can expand and grow like a balloon, thus forming a spacecraft with a larger internal space.
This kind of inflatable inflatable space capsule is currently being studied by countries around the world and has achieved certain results. The inflatable inflatable space capsule that Haoyu Technology will launch this time is a new generation of technology products that has been completely improved on this basis.
It sounds like this inflatable inflatable space capsule is very simple. You only need to get a better material, make it into a balloon, and then 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, and that is safety.
The environment in space is relatively complex. As for the International Space Station, it will experience sixteen sunrises and sunsets every day (24 hours). In other words, during these sixteen alternating days and nights, it endures a temperature difference of plus or minus nearly 300 degrees. Under the sun's rays during the day, it has to withstand temperatures of more than 100 degrees and numerous harmful solar rays. Without sunlight, it will withstand extremely low temperatures of more than 200 degrees below zero.
This repeated alternation of high and low temperatures will be a severe test for any material. First, make sure that the material can withstand the repeated alternation of high and low temperatures. Secondly, there is the service life. This repeated alternation of high and low temperatures will increase the fatigue of any material, thereby accelerating the aging of the material and greatly reducing the service life.
In addition, the material must be able to withstand a variety of harmful cosmic rays. Our earth is protected by the magnetic field and atmosphere, so it avoids the invasion of various cosmic rays, so we humans and life on earth can survive.
In the universe, without the barrier of the atmosphere, the earth's magnetic field is weakened or even has no magnetic field, so it is necessary to rely on aircraft alone to block these harmful rays.
Of course, there is another major danger in the universe, which is unknown space debris. These fragments are very small, perhaps a few centimeters or millimeters, and cannot be monitored and forecasted at all.
What's more, there are also some space meteorite fragments, which are more difficult to monitor and predict. You must know that our earth is attacked by space meteorites every day. Most of these meteorites will turn into bright meteors and burn up in the atmosphere, and only a small number will burn up. It will be enclosed on the ground, which also protects us humans from being attacked by space meteorites.
In space, these space debris and meteorites traveling at a speed of six to seven kilometers per second have become fatal killers of spacecraft and satellites. Although the chance of this is 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 its years of service. Fortunately, no major damage was caused.
So for this kind of inflatable inflatable space capsule, it naturally gives people an illusion. Think that it is as fragile as a balloon, and it is likely to explode if touched slightly. Even if it doesn't explode, it will deflate like a balloon or a ball.
Moreover, the materials used in the spacecraft and space station are metal and composite materials, which give people the first impression that they are relatively strong. As for Wu Hao's inflatable space capsule, the first impression it gives people is that it is fragile and somewhat unreliable.
But in fact, this inflatable inflatable space capsule also uses polymer composite materials. This kind of material is also mostly used in spacecraft, space stations and spaceships. What Wu Hao and the others used on the inflatable experimental space capsule they were on this time was a self-developed polymer composite material. After repeated testing in simulated environments, this material achieved very satisfactory results.
For example, in general, this kind of material is prone to aging, hardening, and loss of toughness when exposed to long-term alternations of hot and cold temperatures. But this material does not. It can maintain thermal properties for a long time in such an alternating hot and cold environment, and has excellent anti-aging properties.
In addition, this new type of polymer composite material they developed themselves is very strong. Because of its high strength, it has strong resistance to pulling and impact.
However, no matter how strong it is, it will be difficult to withstand the impact of those space debris at six, seven or even ten kilometers per second. Not to mention this kind of polymer composite material, even the hardest metals in the world, chromium and titanium, cannot withstand it.
Therefore, human spacecraft do not expect to rely on materials to prevent these debris from impacting, but instead establish an accurate debris detection and forecasting mechanism. Monitor the status of debris in space in real time to adjust the trajectory of the spacecraft to avoid debris.
Secondly, this is to have good self-healing and repair capabilities. In other words, after being hit by these debris, the spacecraft can repair itself in time, or repair it quickly. This prevents the situation from deteriorating and threatening the safety of the spacecraft and even the safety of the astronauts inside the spacecraft.
According to scientists' assumptions, future spacecraft will have certain self-healing capabilities, that is, self-repair capabilities. A special liquid is put into the interlayer of the spacecraft shell. If the shell ruptures, these special liquids will quickly collect to the damaged parts and solidify, thus blocking the leaked parts damaged by the impact.
The technology research and development team of this expandable inflatable space capsule project used this technology on this expandable inflatable space capsule.
A special liquid is injected into the polymer composite sandwich of the expandable inflatable space capsule. When the expandable inflatable space capsule leaks, this special liquid will block the leakage site in the shortest possible time. Prevent the internal pressure of the spacecraft and the outflow of cabin air.
In addition, this time the inflatable shell of the inflatable inflatable space capsule is made of overlapping materials, which further improves the strength of the inflatable inflatable space capsule. Its comprehensive performance has even exceeded that of traditional spacecraft. metal material casing.
Furthermore, the outer shell of the inflatable space capsule is composed of numerous 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 will collapse after inflating. Automatically expands and has strong support.
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