Ask Tianfei, a new article on space science -written in the first scientific experimental cabin in my country ’s space station successfully“ asking the sky ”

Xinhua News Agency, Hainan Wenchang, July 25th. Question: Ask Tian Feitian, a new article on Space Science -Written at the first scientific experimental cabin in my country ’s space station successfully“ asking the sky ”

Xinhua News Agency reporter

Ask Tian Feitian, "China Star" is even brighter.

At 14:22 on July 24th, the "China Strongest" Rockets -Long March 5 Yao Lao Rockets, supporting the "China Heavy" aerospace weapon -about 23 tons of the test compartment.

After about 13 hours, the questioning compartment was successfully connected to the front port of the heaven and the core cabin. Two 20 -ton aerospace weapons are for the first time in the raillet connection.

The lifting process is perfect and accurate, the "needle -piercing lead" is stable and powerful, the "space kiss" is elegant and calm, and the astronauts multiply enter the experimental cabin smoothly. The key battle of the construction stage of the China Space Station was perfectly ended, waiting for the "Dream of Dream" to dream for nine days.

"China's strongest" sends "China Heavy"

Wanli Qingkong was washed, and he flew into the sky. At 14:22 on the 24th, the Long March 5 Yao Three Lauret Rockets ignited on time at the Wenchang Aerospace launchers. After about 495 seconds, I asked the Tianjin Experimental Cels and the Rockets to successfully separate and enter the scheduled track. The launch was successful.

The huge thrust released by the liquid hydrogen oxygen is not recommended to "Long Five B" and the experimental cabin, and stabilize a beautiful arc in the sky.

On the beach of Wenchang, the cheers are crowded.

Behind the victory, the work of the astronauts accumulates the hard work and sweat of the astronauts.

The Long March 5 -carrying rocket is a "exclusive train" for the cabin of the space station construction. It uses non -toxic and pollution -free liquid oxygen, liquid hydrogen and kerosene as a pushing agent. The take -off weight is about 849 tons. The new -generation carrier rocket with the largest rail carrier capacity.

Long March 5 B -carrier rocket adopts a first -class semi -semi -type, which is currently the only one and a half of the rocket in the world in the world. This simple design system makes the rocket no need to perform the actions such as inter -sectional separation and high -altitude engine startup, which reduces the probability of faults and improves rocket reliability.

In order to safely and precisely send the Tiantian experimental compartment to the destination, the Rocket Rocket R & D team also conducted targeted "muscle gain" on the long five B, and made more than 30 improvements in the production process; The ground equipment is fully maintained, replaced, and improved.

Asked about the Tiantian experimental cabin is the largest and largest spacecraft in my country so far, with a total length of 17.9 meters, a diameter of 4.2 meters, and about 23 tons.

Not only does it have a large body, and asked the Tianjin experimental cabin is a "all -round" player integrating platform functions and load functions.

According to reports, I asked the Tianjie Experimental Cels and the Core Card to back up. The key platform functions were consistent, which can fully cover the work requirements of the space station combination. Essence

"China's strongest" carrier rocket, equipped with "China's heaviest" spacecraft, shows the "king style" in the long five B, and asked the Tianjin experimental cabin to "ask the sky".

In the view of Song Xiaoguang, the deputy director of the GNC sub -system of the Fifth Hospital of Aerospace Science and Technology Group, "China is the heaviest, space settlement" has made my country's space scientific research level stand on the same starting line as developed countries. "Building at the space station, small as small as component casting, material processing, as large as assembly, assembly, launching field measurement and control, and no complete industrial category can't do it at all." Song Xiaoguang said that the first experimental cabin of the space station was "asking the sky", which is the country. Comprehensive national strength.

Although the journey is far away

At 3:13 on July 25th, I asked the Tianjin Experimental Cels to successfully connect to the front port of the sky and the core cabin, perfectly "fit".

For the first time, the Long March 5 -Car Rockets, which performed the launching task for the first time, ignited and set off on time.

Behind the calmness and elegance is the ingenuity and good work and excellence of the astronauts.

In fact, although the Long March 5 successfully took the first flight on May 5, 2020, and the Tianhe core compartment was accurately sent to space on April 29, 2021, which has laid a solid foundation for its long -term operations, but this time Launch, heavier load, more feather flow interference ...

Song Xiaoguang played an image: "The manned spacecraft connected to the small sports car with strong controllability; the cargo spacecraft was connected to the small truck; and when the interface between the test compartment and the core cabin was connected, it was like to put a large volume of a large volume. The RV was parked into a small parking space. "

The launch of the specified time and sending the spacecraft to the specified location has become the key to the success or failure of the Long March 5 -carry rocket launch.

The "needle piercing lead" of space may be a thousand miles away. "The Rockets must be launched at the prescribed time, otherwise I will not be able to reach the designated location." Said Liu Bing, the overall deputy deputy director of the Rocket Rockets of Aerospace Technology Group No. 5, the dean of the Aerospace Technology Group.

"The launch tasks of the construction stage of China Space Station are intertwined and significant, and no losses can be lost at any time." Lou Liang, deputy chief designer of the Aerospace Science and Technology Group No. 5 Lange Rockets, emphasized.

Li Dong, the chief teacher of the Long March 5 Yao Three Rockets, said that in order to complete this task more accurately and reliably, the long five B team prepared for this task for more than a year and did the "zero window". A large number of plans, "multiple insurances."

"First Insurance" is the "take -off time correction technology". This technology allows the rocket's control system to automatically calculate the deviation and adjust the target track. Even if the rocket fails to launch it completely according to the scheduled window, it will be launched at any time in this period of 0 to 2.5 minutes. The flight deviation caused by delayed launch is precisely sent to the predetermined orbit. "Second insurance" is the optimization of the project process. Lou Liang introduced: "The low -temperature rocket system is complicated, and there are many types of processes in the launch site. We summarize the first 7 launch experience and optimize the launch process of 10 minutes before the shot. At 2.5 minutes from the point of ignition, we have completed each before the launch. Preparation of items, if you have any problems, you can find it early and solve it early. "

Asked the experimental cabin design team, he accurately grasped the data parameters of the experimental cabin, and improved the algorithm to achieve stronger adaptability and correction ability. At the same time, the semi -autonomous meeting docking plan is adopted to achieve stable control in the process of meeting and docking.

"China Palace" re -extensive dreams

About 7 hours after the "fit" and Tianhe "combined", Shenzhou No. 14 Aerospace Micrometer entered the Qi Tian experimental cabin, and the China Space Station opened the "double cabin" mode.

As the first experimental cabin of China Space Station, I asked Tian not only to further improve the reliability of the space station, but also improved the living conditions of astronauts in the rail. Its unique scientific design, as well as the "unique artifact" carried, will also become a powerful support for deep space exploration.

According to the design plan, the function of the Tianhe core compartment is backup of the function of the Tianhe Core compartment. Continue to fly together.

At the same time, I asked the air gate of the Tiangan Experimental Class and the node compartment of the sky and the core compartment, and the out -of -service equipment support equipment of the spacerist system also backup each other to ensure the reliability and safety of the astronauts out of the cabin.

There are also 3 sleep areas and 1 sanitary zone in the cabin. The upgrade from the "one -bedroom" to the more spacious "two -bedroom room" can support the six astronauts of Shenzhou 14 and 15 to achieve the "Space Society" and the Rotary Rotation of the Rotal Rotation. Essence

In terms of living materials, I asked the Cabin to be equipped with rich passenger products, including space kitchen, charging equipment, and so on. The two sets of kitchen equipment brings great convenience to the life of the astronauts. On the basis of the sky and the core cabin, the Tianshi experimental cabin has also been optimized and upgraded in terms of sound absorption, noise reduction, and shock absorption.

In terms of scientific experiments, a number of experimental cabinets were placed in the cabin, which laid the foundation for carrying out multi -disciplinary space research. A total of 22 standard load interfaces were installed outside the cabin, which is the best venue for exposed experiments outside the cabin. The flexible and fine robotic arm is 5 meters long and is an all -around player of the experimental load.

In order to support the development of scientific experiments in relevant areas, many scientific experimental cabinets with a number of about 1 meter, 1.8 meters high, and 0.8 meters deep in the experimental compartment, including life ecological experimental cabinets, biotechnology experimental cabinets, gravity science experimental cabinets , Scientific glove boxes and low -temperature storage cabinets.

Although the scientific experimental cabinet is small, it is powerful, which is equivalent to installing the scientific experimental system that covers dozens of square meters into a cabinet of less than 2 cubic meters.

"Space science and application research can not only help us understand the laws and cosmic laws of the foundation, but also improve the quality of human life on the earth through biology, medicine, and material studies. Technology reserves. "Wang Ke, deputy chief chief of space application system and director of the Integrated Technology Center of the Chinese Academy of Sciences.

By the end of the year, with the rise of the Mengtian experimental cabin, the completion of the China Space Station will become the National Space Lab, bringing a deep -short dream of 1.4 billion people, and opening a new way to seek. (Reporter Li Guoli, Li Yun, Zhao Ye Ping, Zhang Ruijie, Wen Jinghua))

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