Towards the sea!One article is different from the difference between the Tianjie and the core compartment of the sky and the core compartment

Two years ago, on July 23, 2020, the "Long March 5 Yaoyao" launch vehicle took off from the Wenchang Aerospace launcher, holding the "Tianwen No. 1" Mars detector and embarked on the neighbor of the nearby on the earth -Mars The long road.

Photo source see watermark

Two years later, at the Wenchang Aerospace launcher, the "Long March 5" carrier rocket sent the "Ask Sky" experimental compartment into space.

In addition to making the space station "two cabins", "asking the sky" also shoulders the important mission of scientific experiments

There is only a difference in order "Tianwen" and "asking the sky", but they are all taken from the long poem "Tianwen" of the famous poet Qu Yuan. People who have lived on the land of Shenzhou have gradually become the beautiful universe today. Reality: The "Tianwen No. 1" detector has landed for more than a year, bringing us the first -hand information of this red planet; and the "Ask Tian" experimental cabin will go to the "Tiangong Palace "Space station, docking with the core compartment of" Tianhe ". The booked "three -cabin" configuration will complete the "two cabins", and my country's "Tiangong" space station will be further expanded.

The "three -cabin" complete Chinese space station leader like this

The main function of my country's "Tiangong" space station is "Space Lab". A variety of scientific experiments will be carried out among them to study the short -term and long -term effects of the physical, chemistry, biology, and medicine of the space environment, and provide us with the theoretical and technical foundation for the deeper space.

Since it is a "space laboratory", a large number of experimental instruments must be needed. The main functions of the existing "Tianhe" core compartment are the main control of the space station, the long -term residence of astronauts, and the core of each cabin. Therefore, the number of experimental cabinets above is relatively limited, and only a small number of experiments can be carried out.

The protagonist "Ask the Sky" experimental cabin, as the name suggests, is based on the launch of space experiments.

A picture is different from the difference between the "Ask the Sky" experimental compartment and the core compartment of "Tianhe"

"Ask the sky" experimental compartment and "Tianhe" core compartment comparison chart (production: Xingzhi science innovation)

Its structure is significantly different from the core compartment:

The first is the eye -catching "head".

The head of the "Tianhe" core cabin is a round node cabin with two interfaces, two mooring ports, and one outlet. The head of the "Ask Sky" experimental cabin is a pointed resource cabin with two large flexible solar wings equipped with two pieces of "Tianhe" core compartment, but the area is significantly greater than the core cabin of "Tianhe "- —— There are many cabinets in the experimental cabin, and the energy consumption demand has also increased. Therefore, the larger area of ​​the solar wing is required to provide more abundant power.

It is worth pointing out that the sun wing installation interface is reserved at the top of the truss of the solar wing. After the space station is completed, a sun wing located in the core cabin of the "Tianhe" can be transferred to the interface to further improve the lighting efficiency (the other one is okay, then it is possible Installed to the interface of the "Dream Sky" experimental cabin).

We can also notice that the relay antennas of the "Ask Sky" experimental cabin are also arranged on the resource cabin, and the relay antenna of the "Tianhe" core compartment is in the large column section. In addition, the functions of the two resource cabins are basically similar, both with posture adjustment and energy storage function.

The "head" is "central".

The central part of the "Tianhe" core cabin is a small pillar section with a diameter of 2.9 meters. The sleeping area and sanitary area of ​​the astronauts are located in it, and there is a "space treadmill". Airbuls cabin.

"Tianhe" core cabin small pillar section sleep area, sanitary area and space treadmill

Although there is also a pneumatic gates in the core compartment of "Tianhe" (ie, the node compartment), the "Tianhe" air gates compartment must be smaller than the "Ask the Tian" air gate, which is not convenient for aerospace The officer launched the cabin event.

More importantly, once the "Tianhe" air gates can start out of the cabin, it will be vacuum in the cabin, losing the function of being used as a node cabin, and the transfer of each cabin cannot be achieved. At the same time as inconvenience, there are certain hidden dangers. Therefore, the air gate of "Ask the sky" will be the main air gate for the space officer's outlet event in the future, and the "Tianhe" air gates will be used as a backup. Back up the air gates in and out.

The "Ask Sky" air gates also has an external exposure platform, which is convenient for various samples to be exposed to the space environment. The effect of studying the extreme environment of space, parts, and even life of various materials, parts, and even life, and further broadening the scope of research.

The "central part" is the main body of the cabin section. This part of the cabin section is cylindrical and has a diameter of 4.2 meters.

The main body of the core compartment of "Tianhe" is called the "Big Pillar Paragraph", which includes a part of the living control compartment and a resource cabin; the main body of "Ask the Tian" is a complete working class. In addition to a large number of experimental cabinets, the interior , Also equipped with 3 sleep areas and 1 sanitary zone. Once the assembly is completed, cooperate with the 3 sleep areas and 1 sanitary zone existing in the core cabin of the "Tianhe", which will meet the "Shenzhou 14" and "Shenzhou" and "Shenzhou" On the 15th, the "15th Aerospace of the Space Officer of the Space Officer.

In addition to living space, the "Ask Tian" experimental cabin also backup the control management system of the core compartment of "Tianhe", which plays a redundant role. Under emergency situations, the entire space station can be controlled through the experimental cabin to ensure the spacecraft and astronauts. Safety.

On the outside of the "Ask Sky" experimental cabin, there is also a small robotic arm.

Although the "Tianhe" core cabin has a major robotic arm, although its scope and load capacity is greater than the small robotic arm of "asking the sky", it is slightly inferior to precision and flexibility. Fortunately, the size of the robotic arm can be achieved, thereby realizing the function of "1+1> 2". The robotic arm formed by the combination not only has a larger and flexible activity range, but also improves a level in terms of precision. Without leaving the house, operate the transfer of the cockpit load in the cabin, reduce the number of outlet activities, and improve work efficiency. Large robotic arm and small robotic arm collaborative schematic diagram (picture source: Xingzhi Kuangchuang)

After the "Qi Tian" experimental cabin is connected with the "Tianhe" core compartment, in the next three months, it will always be located in the front -oriented interface, and the "Tianzhou" freight ship that is parked at the back of the "Tianhe" core compartment Together, the main structure of the "one" type is constituted. At the same time, the "Shenzhou No. 14" manned spacecraft will be moored on the side -faced interface, and overall the space station presents the "Bu" font.

(Picture source: Xingzhi Science and Technology)

When three months later, when the "Dream Sky" experimental cabin goes to space, the "Ask Sky" experimental cabin will be moved from the side to the side to the side of the interface to the side of the interface. "The experimental cabin, and then the" Dream Tian "experimental cabin was also transferred, and finally completed the task of the construction stage of the" Tiangong "space station.

Take the ancient people and the present people, start with the sea of ​​Xingchen!

The sound of Lishui is endless, and the sound of the South China Sea is still the same. From the return to Wenchang, more than two thousand miles, from "Ask" to "Ask the sky", it has been more than 2,000 years. The vast territory has shaped our broad minds, and the long history has cast our pursuit. Keep marching towards space and insisting on exploring unknown. This is the best answer we can recover the ancestors.

(Picture source: Xingzhi Science and Technology)

Produced: Popular Science China

Author: Ice Nunflower

Producer: China Science Popularization Expo

The China Science Popularization Expo is the Science Popular Science Platform of the Chinese Academy of Sciences. It is sponsored by the Computer Network Information Center of the Chinese Academy of Sciences. Relying on the high -end scientific resources of the Chinese Academy of Sciences, it is committed to spreading cutting -edge scientific knowledge and providing fun science and education services.

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