Tower Defense Strategy - Chapter 296

Digital data cannot witness the long river of time.

In theory, digital data can be stored for thousands of years, but the premise is that there is no magnetic storm nearby, and the digital storage device cannot be completely powered off (battery). Who can guarantee that the storage point will not be hit by a magnetic storm for thousands of years. Magnetic storms are very common in space environments.

The “civilized” digital data sent from the surface to the Moon Palace will not be permanently sealed. They must be backed up at least twice before being stored underground in the form of a hard disk array.

In other words, there will be three “civilized” digital data on the monthly table.

If any copy of them is found to be tampered with or damaged naturally, you need to check the backup and the place where the power is off immediately for restoration.

In addition to the monthly table, the Kunpeng space station will also save a copy. There is no offline data, but another batch of specimens will be sent. The delivery will not be until the beginning of next year when the decoration task is not tense.

In the future, the space station will not be preserved as a whole, but the information on the Kunpeng Space Station and the Moon Palace can be accessed at any time. This is mainly due to the fact that the orbital height of the future space station is not conducive to its long-term existence. Once it loses contact with the ground, it will inevitably find a way to upgrade or disassemble it to merge with Kunpeng.

Later, if the surface industry chain is still there, or a batch of copies will be sent to the red star orbit.

The Red Star Orbital Station Project was also launched on the birthday of Country C in XX24.

Compared with the original Yinglong-3 project, the Red Star Orbital Station will be a real spacecraft, containing two sets of Hanyan B-type nuclear-powered thrusters.

In order to adapt to the robot-controlled spacecraft, the Hanyan B Type B made certain sacrifices. The operating temperature was reduced to 1950 degrees and the specific impulse was only 920.

At this point, it would have to cross the distance between the planets and consume the fuel equivalent to the load. However, considering the nature and success rate of the one-way mission, it was decided to be extravagant.

The load space station this time is a geometric ship-shaped object with a length of 25 meters, a maximum width of 9 meters, and a maximum height of 7 meters. Anyway, the entire structure will be completed in the future space station. It is normal to meet everyone’s aesthetic needs.

But this geometry is not random, it has functional areas like a normal space station, including a cockpit, two side ports (including decompression chambers), a laboratory, a living area, a main cargo compartment, and a red star atmosphere. The landing gear is a cargo compartment. The landing gear is actually a backpack that can be integrated with the Homo sapiens robot. It can carry an extra load of 20 kilograms and can go out directly from the side port.

Excluding the main thruster and fuel tank section, the planned total weight of the space station is 120 tons. It will carry eight Homo sapiens specially designed for the red star situation and two special Homo sapiens (intelligence officers and pilots) for the space station, totaling ten Tons of materials planned to be delivered to the surface of the Red Star are mainly due to the weight of the landing system that penetrates the atmosphere. Ten tons is already the limit when the success rate and the safety of important materials are ensured.

The Red Star mission was launched, and the spacecraft plan was made, but there is still a long time before the actual mission is launched.

The reason is the window.

The better window period for the path from the soil ball to the red star is once every 26 months, and the window lasts for two months. The maneuver is to perform a Homan transfer maneuver in orbit, allowing the spacecraft to orbit directly around the sun, directly opposite the sun, and reach the far point where it converges with the red star.

The advantage of this maneuvering method is that it is relatively difficult to plan the orbit in advance, and the maneuverability is high. The success rate of the spacecraft in the final capture by the red star is guaranteed to a certain extent, and the fuel consumption is barely acceptable.

There is another way, the gravitational slingshot maneuvering.

The spacecraft first flies to the orbit around the moon and does not need to decelerate. With the help of the track distortion caused by the moon’s gravity, a wave of acceleration is carried out. The acceleration given by the moon’s gravity within a period of time becomes the extra ΔV obtained by the spacecraft.

Theoretically, the gravitational slingshot maneuver will save fuel, but the maneuverability is extremely low, and any accuracy error in the process can easily throw the spacecraft beyond the red star ecliptic.

Drought B can not guarantee that under any circumstances, it will be able to recover the navigation deviation caused by the gravitational slingshot error, so the traditional way is still used.

The window is not the same as the window, because the planetary orbits are not really circular. At each intersection window, the two planets will travel a certain arc, and sometimes the relative distance will be a little farther, sometimes a little closer. Two months after the plan was launched, it was actually the optimal window to explore the Red Star once more than a decade, but after the Monster Crisis began, in order to ensure the progress of the two space stations and the Moon Palace, it was obviously not able to cater for Red Star’s secondary needs.

Therefore, it will take at least 26 months before the Red Star Orbital Station spacecraft can be launched.

However, it is doubtful whether the industrial chain can withstand the situation on the surface for 26 months. After comprehensive consideration of all aspects, country C has decided to start the Red Star Program now. , The goods are sent to the future space station, and the assembly is slowly carried out.

In mid-October, Yinglong-2 and Northern Star-2 both set off from Moon Palace and returned to the future space station.

Some people and robots in the space station put down their work, replaced the two spacecraft with new long-life engines and related automatic control firmware, and conducted a comprehensive safety inspection.

Although in order to ensure operational efficiency, the electromagnetic silo system allows a certain launch failure rate, but in personnel safety-related matters, more rigorous standards will still be adopted. Therefore, the manned vehicles sent from the surface to the sky must be assembled after the completion of the assembly. Accept at least one month’s inspection.

The same is true in the sky, except that even if the Yinglong 2 and the Northern Star 2 have successfully performed multiple missions, the Moon Palace has marked some minor problems in the daily inspection and maintenance, and the future space station will have a lot less work.

All aspects were coordinated. In late October, Yinglong 2 and North Star 2 were divided into two shifts, and ten newcomers were transported to the moon table.

At this time, the total number of people in the Moon Palace reached 20, and there were four legal couples (three of them were new members). However, due to factors such as basic physique and follow-up work, the male to female ratio was unbalanced at 11 to 9.

In addition to a large amount of dehydrated food and instant drinks, the main thing that arrived with the newcomers was equipment.

Excluding cargo boxes, cushions, and wooden shelves, the total weight of the equipment is about 30 tons, all of which are parts for construction machinery, and all types of electric motors alone have 10 tons.

Cargo boxes will not be wasted. The wooden shelves are crushed and thrown directly into the inner corner of the greenhouse to grow mushrooms. Store the cushions and let everyone try to make sofas by hand. The outer shells of the cargo boxes are directly used as the concrete of the second building. Measure the airtight board inside the wall.

By the time the couple arrived in Building No. 2, the overall frame of the building with one and a half floors was completed.

Due to the large design area of ​​the second building, the first phase of the project focused on man-hours. At first, it did not include the wall and decoration works of the basement level. Later, due to some internal equipment adjustments, it was decided to include the basement level as the first phase. For the project, the height of the main hall was adjusted from four to three. The adjusted first phase of the project still has four floors, and the frame structure remains unchanged.

Starting from the function, the basement floor is basically a miniature version of municipal engineering, including gas storage (compressed air, oxygen), electricity storage and distribution, and comprehensive sewage treatment in the building. After adjustment, comprehensive thermal management has been added to replace the entire building. Split thermal management plan for each district.

In a vacuum environment, a disaster emergency plan is an indispensable thing, but unlike the ground, even with a few fire extinguishers, you can run into the street if you are lucky.

The thermal emergency plan in each district has changed from chemical heating and cooling to a battery plan. The management including temporary heating, lighting, pressure relief, and pressurization are all concentrated in a small room similar to an elevator. In the event of a serious disaster, it can be omitted. Relying on the thermal control external machine, through manual operation to achieve functions such as heat control, gas recovery, and space suit ventilation, the excess heat will be passed under the foundation.

Twenty astronauts live in the old building temporarily, and the space is a bit crowded.

However, because the greenhouse has been completed, the new equipment and machinery will be assembled into several engineering tools, and the construction behind the second building will speed up.

By the end of October, the astronauts had carried out various inspections on the precast walls in the airtight concrete workshop.

There are three types of prefabricated walls in the second building.

One is the transparent wall of the viewing hall. From the outside to the inside, this wall is a movable curtain composed of a brick wall and bulletproof cloth, lead-containing anti-radiation coated alumina glass, transparent aerogel, one-way anti-blue tempered glass, and glue. , Lead glass, glue, alumina glass.

Regardless of the transparency, this thing directly withstands the zero-distance direct impact of the 8mm caliber 6000 meters per second electromagnetic projectile, even the lead glass layer will not break, and the folding brick wall bulletproof cloth combination, even if the meteorite is more than ten meters Don’t be afraid to hit the ground outside.

The second type of precast wall is the ordinary concrete layer, from the outside to the inside are the brick wall bulletproof cloth layer, the concrete layer (the main body), the metal plate airtight layer, the thermal insulation foam layer, the interior decoration layer, and the airtight layer is all This kind of freight box is disassembled and welded, and the interior decoration layer is prefabricated on the earth globe surface, which is also a part of the airtight structure.

The third type is called heat exchange prefabricated wall.

Walls on the moon cannot be made too thin, because splashes caused by meteorites and other celestial bodies do not have atmospheric deceleration, and often cause hypersonic bullet-level blows. Larger ones can be blocked by weapon systems later.

There are two places to use the heat exchange prefab wall. One is to quickly replace the constant temperature system in the building to generate heat when the light intensity is appropriate, and the other is to conduct heat in the event of a thermal disaster, which is the wall of the integrated emergency room.

Therefore, there are also two models of heat exchange prefabricated walls~www.mtlnovel.com~ The emergency wall uses decorative surfaces (to the outside of the emergency room), “brick walls”, aluminum grids, and “brick walls”. At the same time, there are aluminum grids in the wall. The inter-cell gas is also directly connected to the gas part of the thermal control system.

The heat exchange wall is used for the outer wall, and there are a lot of extra things. In addition to the things on the emergency wall, a few centimeters of vacuum are separated, which is the movable wall composed of the outermost brick wall and bulletproof cloth. When the movable wall is opened, it can be docked with a mobile thermal control panel, and the excessive temperature can be discharged in the form of heat radiation to avoid direct sunlight. This method can significantly extend the natural light heating time and reduce the overall power consumption of the heat control system.

The airtightness inspection of prefabricated walls becomes very troublesome due to the increased structural complexity, but the construction is rather easy, because the sides of these walls have uncoated steel seals. Using a vacuum environment, they will happen if they touch each other for a period of time. Cold welding phenomenon.

Natural cold welding takes a certain amount of time to complete the firm welding, often several months, so the splicing seam will be welded by electric welding first, and the cold welding will be completed slowly inside it.

It takes only a few days to put together the building blocks and directly weld the wall to cover the entire frame structure. A lot of work is still concentrated on the equipment and wiring placement in the building.