Technology: Breaking the Global Monopoly

Yang Shixiong, the person in charge of the research and development project of the space station and one of the current top engineers of Kyushu Science and Technology, is "excited" in the laboratory at this time.

Before considering the high cost of living on the space station, he developed a regenerative life support system tailored for astronauts under the precursor of ensuring safety and health.

It's just that due to some problems, there were mistakes, so Gu Qing corrected some ideas, but when it came to the space station project, which he is best at, it was already in another state.

"The three-chamber T-shaped configuration, that is, the Wentian experimental module and the Mengtian experimental module form the T-shaped horizontal line, and the sky and core cabin form the T-shaped vertical line. At the same time, there are multiple manned and cargo spaceships. goods.

This will ensure that our Daxia Space Station can easily provide six astronauts with long-term supplies and energy in orbit during normal operation. They are similar to ordinary express logistics, and the space station is the house where we live. "

Looking at the sketch drawn by the other party, and Tiangong's explanation and optimization project beside him, Gu Qing only felt -- relaxed.

Blue Star is talented, and he does not need to devote himself to everything alone. For example, this elite dug from Daxia Aerospace Group can answer many questions.

"If we want to build an excellent space station, the most important thing we should do at this stage is to lay a good foundation, and we also need to design the best core module as the foundation.

The thrust of the JZ-404 carrier rocket is very good, which can fully support us to design a larger core module and launch it into orbit safely.

Then the JZ-405 launch vehicle can carry the supply cargo compartment and dock with the docking port of the core module, and then fly together in orbit. This process is an axial rendezvous and docking, just like two track and field athletes on a runway. Passing the baton.

In my opinion, docking is easy, but leaving is hard.

The docking of the cargo cabin and the docking of the other test cabin, after the combination of the three cabins, the astronauts need to separate the second core cabin when they complete the space mission and leave the space station, then go around to the back of the first core cabin, and then go around to the bottom of the first core cabin , for radial rendezvous and docking verification.

This step is more difficult than axial rendezvous and docking, but our robotic arm is very sensitive and can help the second core module transfer to the docking port.

……

The Kyushu Space Station is an estimated 100-ton assembly, including two core modules and two cargo bays.

Whether it's leaving the space station and returning to Blue Star.Or the JZ series rocket on the ground can fly autonomously to the front of the core module for docking, which requires a mechanical arm to assist in the transition.

In the early stage, we can use intelligent robots to work in the space station to avoid personnel accidents.

From the core cabin, the docking of the cargo cabin, and the round-trip transportation of materials.

So far, the task of verifying key technologies for the construction of the Kyushu Science and Technology Space Station has been completed. "

After Yang Shixiong, the person in charge of the research and development project of the space station, finished talking about the process, warm palms rang out in the laboratory.

Different from the R&D, manufacturing, and launch of the International Space Station and Daxia Space Station, Kyushu Science and Technology's internal view of the space station project is "difficult but not very difficult."

Because there are a series of problems that need to be overcome from the building materials of the space station, polymer materials, special heat insulation materials, radiation protection materials, robotic arms, docking technology, space station systems, space station electronic equipment, chips, launch vehicles, etc., Kyushu Technology has all corresponding answers can be found.

Another reason why Yang Shixiong can take the position of the person in charge of the space station research and development project is that he has a bunch of "immediate bosses" above him.

Kyushu Science and Technology Titan Star Department Director, Semiconductor Department Director, the Kyushu Science and Technology Think Tank whose members’ true identities are unknown, and Kyushu Science and Technology President Gu Qing, these four forces can govern.

In a sense, Gu Qing can easily intervene in the progress of the project through other people without even knowing the way.

Gu Qing walked into the laboratory after everyone's applause became quieter.

When the project leader Yang Shixiong and other experimenters saw Gu Qing's figure, they immediately stopped what they were doing and began to welcome the big boss.

Gu Qing ignored the compliments and blessings in these welcomes. After chatting with Yang Shixiong for a few words, he went straight to the console, stared at the data on the display screen and the dynamic diagram of the space station simulation, and asked, "What's the point?" The 50-ton space station, as far as I know, the Daxia Space Station is tons.

When the second core module of our Kyushu space station was launched, it was so big that for safety, the axial rendezvous and docking was adopted to connect with the front-end docking port of the spherical node module of the first core module. This design is very good.

But have you ever thought about the final docking of the four cabins? What to do with the reaction force generated when they dock again and again?
Does the attitude adjustment engine work every time to adjust?

In the short-term mission period, according to the working life of the attitude adjustment engine and the wireless array thruster we designed, maybe there will be no problem within 20 years, but what about 20 years later?

It should be noted that after the complete body, the Kyushu space station also includes four complete functional compartments: the core cabin, the cargo cabin, the experimental cabin, and the manned spacecraft, which is a complete space station in the true sense.

In the future, not a few astronauts will live and work on this space station, but more than ten or even dozens of astronauts. "

All the engineers and experimenters of the space station R&D project suddenly fell silent when they heard Gu Qing's words.

Even Yang Shixiong, the project leader who was still high-spirited just now, turned to thinking.

After asking Gu Qing for instructions, he also walked to the console, stared at the data on the display screen and the dynamic picture of the space station simulation, and then said: "Tiangong, open the experimental projection simulation."

"Hello, doctor, the experimental simulation projection has been turned on."

On the console, bright lights flickered, and then gathered into bright spot models of space stations.

Everyone saw that during the experimental simulation, after the cargo compartment left the space station, with the help of the auxiliary robotic arm on the node module, the Kyushu Space Station experimental module turned 90 degrees and docked with the main body of the space station again.

When the other core module is vacated, there will be another experimental module, which will be connected to the main body of the space station by axial rendezvous and docking.

Still with the assistance of the auxiliary mechanical arm of the node compartment, it rotated 90 degrees in the other direction and connected to the side of the node compartment.

A series of dynamic construction processes of the space station are presented in front of everyone very intuitively.

But even so, ordinary people or experts in other industries may be dazzled by this series of "fancy" operations, but in the eyes of everyone in the laboratory, these operations are extremely precise or even precise.

From the force and speed of various equipment docking, docking timing, orbit calculation, attitude adjustment, engine output power, etc., the intelligent AI program Tiangong followed the progress of the space station construction and work, and marked the formula and data.

Looking at it carefully, in terms of the construction time and space docking of the spacecraft, this set of procedures is full of logic, and it is almost an advanced optimized version of the official standard answer of Daxia Space Station.

But this is not enough.

Yang Shixiong looked at the details of each docking, as well as the subtle deformation of each interface due to the impact, his brows were furrowed more and more.

From time to time, he would think of what Gu Qing said just now: In the future, the astronauts who will live and work in this space station are not just a few people, but more than ten or even dozens of people.

This means that what he is designing now is not an ordinary car or ship, but a "home" where dozens of people are placed in the harshest environment so that they can survive and live.

In the event of a car accident, the main frame and airbags are the last protection.Ships, planes and other means of transportation have problems, and they can jump off the ship or skydive if they fail.

However, if something goes wrong with the space station in outer space, if those astronauts do not take the rescue capsule in time, they will have to wait for follow-up rescue on the ground in the harsh space environment without air and water.

"The T-shape is suitable for the Daxia Space Station, but not necessarily suitable for our Kyushu Space Station. Maybe we can start from this aspect. After all, the important parameters of the space station's main body weight and equipment used are not consistent with the Daxia Space Station."

Zhou Yu's words woke up Yang Shixiong and other engineers like a bolt from the blue.

Before that, they were also three good students, thinking to make good use of the company's resources as soon as possible to successfully design the space station.

But it is precisely because the resources are too rich, the remuneration is too good, and there are also homework from the previous Daxia space station to copy. When they designed the shape of the space station, although they designed some other shapes and docking methods, they finally chose the safe one. "Follow the predecessors".

Not only Yang Shixiong began to choose other designs, other engineers and experimenters in the laboratory also began to busy with their work, and some engineers who were mainly responsible for the structural design of the space station scratched their heads and frowned.

Gu Qing's eyesight has already broken through the limits of ordinary humans.

He could clearly see the eyelashes of these engineers and experimenters falling off as they kept blinking...

The eyelashes can fall out like this, and the hair that is restrained by the experimental hat is probably...

Beside him, Yang Shixiong finally chose the project he wanted to do in the end after a while of tangled choices.

A circle of circular light spots constitutes a space station with several rings rotating structure.

It's very sci-fi, and it's also very beautiful, even Gu Qing can already imagine that the space station becomes a huge spiral landscape on its orbit.

But Yang Shixiong frowned, and muttered to himself: "The rotating structure composed of several rings is very good, and can even reduce loss in some cases, but there is a big problem, which cannot be solved by the dynamic balance of the space station." .

Astronauts' experiments and life inside the space station, vibrations caused by operating equipment, and changes in cabin materials will change the mass distribution of each ring, especially in space, where tiny weights will affect the stability of the spacecraft's attitude.

Moreover, the longer the radius of the rotating body of the ring space station, the greater the moment, and the greater the problem of dynamic balance.

According to the original idea, in order to have the ability to adjust the mass distribution in real time, the cabin structure of the annular rotating body can be divided into several sections, and each section has ballast water and ballast modules that can be used to adjust the mass distribution Even a gyro corrector.

When an astronaut moves to one of the compartments, the ballast water will be drawn from the ballast water tank of this compartment and injected into the ballast water tank of the opposite compartment to maintain the overall mass distribution balance— —Similar to using counterweights to adjust dynamic balance when doing dynamic balance of car tires.

But the movement of astronauts can be controlled, but it is impossible to precisely control the astronauts' experiments, private life, vibration caused by operating equipment, and changes in cabin materials.

No, I can't figure it out at this stage. "

After shaking his head frantically, Yang Shixiong found the Blue Star International Space Station design drawing that was about to be scrapped from a pile of design drawings.

With a swipe of his hands, he placed it on the operating table, allowing countless light spots to gather together, presenting the design drawing and operation simulation scene of the International Space Station one by one.

"The overall design of the International Space Station adopts a truss-mounted structure. It is like a tree with a thick truss as the basic structure. The pressurized cabin and other various service facilities are attached to the truss to form a truss-mounted structure. space station.

Mao Xiong's original multi-functional module formed the core part of the space station by connecting the docking module and the node module with their orbital facilities such as the service module, experiment module, life support module, and American experiment module.

The other part is on the truss structure of the United States, which is equipped with the remote operation manipulator service system of Canada and the space station extravehicular equipment, and four pairs of large solar cell sail panels are installed at both ends of the truss.These two parts intersect vertically to form the dragon skeleton.

From a design perspective, this indeed enhances the rigidity of the space station and is conducive to astronauts' out-of-vehicle assembly and maintenance.

However, the International Space Station has too many components, all of which were developed by partner countries. Although it seemed very advanced at the time, the technology was too scattered, which caused maintenance troubles.

And due to the failure of various equipment, the International Space Station is likely to quickly disintegrate and cause an avalanche.

This is not desirable. "

Scratch your head and think.

He came up with a solution and rejected it.

Another solution was found, but it was discarded because the solution could not be advanced.

Gu Qing patiently watched Yang Shixiong and other engineers and experimenters in the laboratory scratch their heads and heads. Seeing that they were still immersed in the ocean of thinking, Gu opened Tiangong's archives and searched for the experimental logs.

The experiment logs of other university laboratories and company laboratories may be tampered with, but it is impossible for Kyushu Technology's laboratory experiment logs to be tampered with.

After all, all experimental projects are under the supervision of intelligent AI. No black box operation in any corner can be concealed from the round-the-clock monitoring of the three intelligent AIs of Xuanwu, Tiangong, and Haizhi. Even if it is concealed, it will be because of video evidence. Insufficient, and was marked by AI.