The start of science and technology
Chapter 91 Carbon nanotubes
The construction of the tower is extremely high for building structures, materials, and construction methods, plus facilities to prevent typhoons, lightning hazards, Du Xingyu consumes nearly a million energy points to complete the simulation.
"The most important ground station is the artificial island and tower. These two points are completed, and basically is almost the same." Du Xingyu once again promoted the simulation scheme of space elevators, next is the hardest thing to say throughout the space elevator - cable!
Imagine that the cable of the material can guarantee that the length of 36,000 kilometers can still maintain non-deformed, not broken, maintain its own physical properties, is not damaged by wind and rain
Currently, there is no such material!
So this seemingly simple thing in the cable, but the most difficult ring in space elevators!
Fortunately, Du Xingyu is not a person who is fighting, the team team has given the most suitable alternative, that is, carbon nanotubes!
Carbon nanotubes are tubular nano graphite crystals, which have extremely high strength, theoretical calculation is one hundred times more steel! It is also very soft and can be seen as a "super fiber".
Its electromagnetic performance, adsorption capacity, etc. are excellent. If there is a material that can be used as a cable of space elevators, then it is carbon nanotubes!
It can make the materialists of all countries that have a headache that human beings cannot manufacture synthetic high-purity carbon nanotubes, while carbon nanotubes are excellent mechanics, electrical, thermophysical, electrical, thermophysical properties in micro-field, macro when making tools and appliances. Some can't show it.
These factors are caused, so far, scientists from all countries have not found a suitable carbon nanotube as a material of space elevators.
Du Xingyu's database, there are dozens of options for alternative carbon nanotubes, with single-walled carbon nanotubes, multi-wall carbon nanotubes, long and thin, metal and non-metallic carbon nanotube synthesis programs, he started One emulation test.
"Investing 100,000 energy points, performing C1 carbon nanotube test." Du Xingyu used C1 carbon nanotube synthetic cable materials in the simulator, extended 36,000 kilometers, its lower section fixed with ground stations and tower, and the upper end connection And Tiangong Space Station.
Science and technology simulator: "Cracks in carbon nanotubes, irreversible damage, test failure!"
Du Xingyu began to see the damage to the damage, saving the material data and started the next test.
"The C2 type carbon nanotube strength is suitable, the macroscopic conductive performance is poor, not suitable for transporting car."
"The F92 type carbon nanotube performance is barely suitable, the manufacturing is difficult, as alternative."
......
Du Xingyu simulates the carbon nanotubes of various experts in the technology simulator, and basically does not meet the needs.
However, he also got a lot of data, so that he was able to carry out the next test.
"Investing 100,000 energy points, researching A1 type carbon nanotube materials." Du Xingyu combined with data and started with his own idea.
A few days later, the technology simulator finally gave him a news: "A21 carbon nanotube test is successful."
"Very good!" Du Xingyu has a total of 20 times, finally got a carbon nanotube material with excellent mechanics, electrical and thermophilicity.
Most importantly, its synthetic technology is relatively simple, which can be used to make large-scale manufacturing.
At this time, countries have argued on the site selection of space elevators.
The reason behind it is that all parties want to control the transportation hub of this ground to space - even if the super engineering is not necessarily successfully completed.
"Dear!" The Core Commission of the Human Guarding Alliance is holding a meeting, and a member of Europe speaks: "We don't have time to drag, this meeting must determine the site selection of space elevators. I think the East and Maldives Building a space elevator nearby is a good choice. "
"South Pacific Equatorial Sea area is the best place!" Americans and Australia's members stated.
"The southern part of the South China is the most suitable place." Du Xingyu said, "Do not consider other factors this place is the fastest to implement the construction task."
"But we don't just build artificial island, but also to make the car and the most critical cable!" Said European Commission.
The island member, Qioshan, said: "The cable is crucial. If the cable does not make it, everything is empty! Du command, the carbon nanotube program, don't know how you argue?"
Du Xingyu said: "We have argued that you have a trend in carbon nanotube manufacturing technology. But the material strength is still not enough."
Qioshan nodded and said: "It is true, so we have to find a suitable carbon nanotube material as soon as possible."
"We have found it!" Du Xingyu said, take out a small trip A21 carbon nanotube material. This is the sample he synthesized in the material laboratory.
"This A21 carbon nanotube material satisfies our needs, this is its performance parameters."
Du Xingyu showed the laboratory test results, whether it is toughness, strength, conductivity, or heat resistance, is fully expected.
You look at the Qiushan, and suddenly the eyes are shining, saying: "That is! This is what we envisaged, how is it difficult for manufacturing?"
"The laboratory synthesis is still smooth." Du Xingyu said, "But wants to make a large-scale manufacturing, we must cooperate with chemical enterprises in all countries."
"Dang." Du Xingyu said, "The main body of space elevator, floor station, cable, car, synchronous rail station and weights, Huaxia has the conditions for manufacturing manufacturing, is the only place in all places to build space elevators Now the address choice should there be no objection? "
The people of the core committee looked at each other, although they were very reluctant to bear, but this is the truth. It is, the location of the first space elevator of the humanity is set in the southern part of the South China!
The project of this space elevator is called "ladder project", and the ground station will build a large artificial island called "Penglai Island", and there will be a large number of tower, harbor and airports in the island. facility.
For higher efficiency and resource utilization, the ladder works to assign tasks to all parties.
Artificial Island is mainly responsible for construction. On the day of the program, the sea exploration team has started, the design institute began to draw on the night, and the construction party also touched the seabed dredger and the Island artifact to go to the target sea area.
At the seminar of the ladder project, Du Xingyu said: "Part of the ground station, the Huaxia Construction Team will be completed within the time period, and the space station part will be held by our Tiangong Space Station."
"The other three main parties still require the cooperation, car, cables and weights of Member States."
"Our European team will be responsible for designing and manufacturing cars!" A German senior engineer said, in fact, their design work has begun.
"Our Island Country and South Korea's chemical companies will be responsible for manufacturing A21 carbon nanotube cables, completed on time!" Qioshan said.