Military Technology

~www.readwn.com~ Mr. Chen followed Professor Zhou's words, then picked up a satellite model, and said to the host and the camera: "That's right, this is the high-speed orbital debris removal of Huanwei-1 launched this time." Experimental satellite. Of course, the real Huanwei-1 is definitely not what it looks like.

The erection of the Huanwei-1 high-speed orbital debris removal experimental satellite requires flexible orbit changes, which depend on the multiple attitude engines on it. By constantly controlling the closing and closing of these attitude engines, the flight movement of the satellite on the entire orbit is adjusted.

This puts very high requirements on the flight control system of the entire satellite, and requires that the entire flight control system must be precise, so as to complete such approaching and cleaning tasks.

In addition to being accurate, the performance of the entire attitude engine, including the main engine of the satellite, must be excellent enough, otherwise it will not be able to tow a decommissioned weather satellite that is much heavier than it.

Although space is in a state of weightlessness, the object itself has mass. According to the law of conservation of mass, in any material system (isolated system) isolated from its surroundings, no matter what changes or processes occur, its total mass remains unchanged.

That is to say, no matter on the earth or in the weightless environment of the sky, the mass of the object itself will not decrease or increase. How a small satellite drags a large decommissioned weather satellite requires an engine with excellent performance on the satellite.

In addition, the entire flight control system, including the engine, has to withstand many repeated starts, especially the orbit transfer stage after capture, which requires the satellite to change orbit first, and load it into the atmospheric orbit from the original orbit change position. Then it accelerates in the atmospheric orbit and drags the entire decommissioned weather satellite along the orbit.

After reaching a certain speed, disconnect the cable, so that by virtue of inertia and gravity, the decommissioned weather satellite pushed behind will continue to fly down this orbit loaded into the atmosphere, and finally fall into the atmosphere and burn up.

The Huanwei-1 high-speed orbit debris removal experimental satellite that disconnected the cable must change its orbit, and then start the main engine to continue climbing upwards, thus leaving the orbit loaded into the atmosphere. Then continue to change orbits and perform the next task.

In this way, we can clean up decommissioned satellites and other debris and garbage floating in space orbit without destroying the Huanwei-1 satellite.

Moreover, a satellite can clean up several orbital debris and space junk, so that its operating cost can be greatly reduced, or the cost of cleaning up space junk and debris. "

Hearing Mr. Chen's words, the host nodded, then looked at Professor Zhou on the side and asked, "Professor Zhou, we have also noticed that there are many voices on the Internet who think that this space junk experiment is meaningless. To a greater extent, it is just a play directed and acted by Haoyu Aerospace, its purpose is to increase the valuation of its own company for the sake of its own stock market, to put it bluntly, it is for money, what do you think about this.”

Professor Zhou shook his head when he heard the words: "I don't agree with this statement, this statement is wrong, very one-sided, and it is also maliciously speculated by these people.

First of all, I want to tell everyone that this technology is very difficult. At present, there are only a few countries that have mastered this technology, and the private enterprise that has mastered this technology is currently only Haoyu Technology.

It can be said that in this field, they are absolutely ahead of the industry, there is no doubt about it.

Secondly, there are currently close to millions of garbage debris in the earth's low-Earth orbit, and these garbage debris seriously threaten the normal space activities of human beings. Not only will it pose a threat to the various satellite spacecraft we launch into space, but it will also endanger our various manned spaceflight activities, such as affecting spaceships that shuttle back and forth, and endangering space stations that have been operating in orbit for a long time. It endangers the astronauts on the space station and the astronauts who carry out extravehicular walking operations.

It is very likely that a fragment with a diameter of only a few millimeters can kill an astronaut. With a speed of several kilometers per second, the power of its impact is much greater than that of a bullet.

With the rapid development of space activities in various countries at present, various spacecraft and payloads are competing to be sent into the sky, which also leads to more and more garbage and debris debris in space, which greatly increases the impact. risk.

And these garbage fragments, wandering in space, will become more trivial and smaller due to the collision with each other, and it will be more difficult to clean up at that time.

In addition, these space junks and space debris remnants greatly occupy the limited space, especially the low-Earth orbit. The low-Earth orbit that we can use on Earth is very limited. Once it is used up, there will be no more space and low-earth orbit available, and it is a non-renewable resource.

In the entire low-Earth orbit, there are many very valuable special orbits, which are often used to place some important satellites and spacecraft, such as communication satellites, meteorological satellites, remote sensing satellites, and so on.

In the previous space activities, companies from various countries have seized a large amount of precious orbital resources, and many of the satellites launched before have failed and stopped working. Now they are just garbage floating in space, and they are still orbiting Earth flight ~www.readwn.com~ continues to occupy the entire orbit.

If you want to launch satellites in the future, you will definitely not be able to continue to use this orbit, so you must choose another orbit. But now with the development of aerospace technology in various countries, such good orbits have become increasingly rare, or even no longer exist.

So now, if we can clear the original orbit and send a new satellite, we can continue the mission of the previous satellite and continue to serve mankind.

And this experiment is very important. It not only means that we have a more advanced, cheaper, and more reliable method of cleaning up space junk and space debris debris. It also represents the depletion of orbital space and the threat of space junk that have been plagued by the aerospace field for a long time, and a preliminary approach has been obtained.

Once this technology lands and is applied on a large scale, it will benefit the lives of all human beings and society, and all of us will benefit from it.

To give a very simple example, the Internet we use, or the TV broadcasts we watch, including the Beidou satellite navigation we use when driving, all of which are inseparable from satellites. With this technology, we can better enjoy these services for a long time, and we will not be unable to enjoy these services or the price of the services will increase because of the depletion of the orbit or the deterioration of the sky environment one day. "