Six hours of space out of space create multiple "first"

"I'm out of the cabin, it feels good!"

At 0:33 on September 2, Beijing time, after about 6 hours of outlet activities, Shenzhou No. 14 astronaut Chen Dong, Liu Yang, and Cai Xuzhe worked closely to complete all the tasks during the compartment activities. Chen Dong and Liu Yang returned safely to return. Asked the experimental cabin, the outlet event achieved a complete success.

Despite the great challenges and risks, through the collaboration between the heavens and the earth, the wonderful performance of the astronauts is the "new" "new" outlet mission of the newcomer, the new cabin, and the new state.

Newcomer's new cabin, bring new challenges

For Shenzhou 14th astronauts Chen Dong and Liu Yang, although both have experienced space flight experience, it is the first time to perform the outlet mission.

In space out of space, astronauts are "exposed" in outer space, facing the temperature difference between temperature difference between 200 degrees Celsius and harsh conditions such as space radiation and vacuum environment. The off -space clothing that guarantees the safety of life and supports off -cabin activities reaches hundreds of kilograms. Aerospace officers must control the physical condition in this "humanoid aircraft" and perform space -walking, climbing and refined cabin operations. Difficulty.

This is also the first time that my country's astronauts have implemented off -compartment activities from the outlet of the Tiantian Experimental Counterbill. Earlier, the four out of Shenzhou 12 and Shenzhou 13 multiplication group fully verified the performance of the space uniforms outside the cabin and the capabilities of the space staff for a long time. The first out -of -class event of Shenzhou 14 faces many new situations, favorable conditions and challenges coexisting:

For the first time, the astronauts came out from the air gate, and the outlet and mouths were more "spacious"; the communication coverage between heaven and earth further increased, and the time for the collaboration between heaven and earth and the ground for heaven was relatively sufficient. The arm transfer agent has no actual experience accumulation before; asking the Tian Tian experimental cabin to join the space station, which has changed the size of the space station. The astronauts have to face a larger and more complex aircraft combination ... These new situations and new situations Challenges need to be prepared in advance and respond on the spot.

Heaven and earth, go out of the cabin smoothly

On the afternoon of September 1st, the astronauts closed the door of the section of the sky cabin, and then Chen Dong and Liu Yang entered the space uniforms outside the cabin to prepare before the outlet. At 18:26, Chen Dong successfully opened the cabin door of the Tiantian Experimental Counterbill. At 19:09, Chen Dong and Liu Yang successfully came out of the cabin, while Cai Xuzhe cooperated in the core cabin to support two out -of -class astronauts to conduct off -cabin operations.

For the 6 -hour outlet event, the heavens and the earth are closely coordinated, and the inside and outside the cabin cooperate closely. It has completed the task of installing the installation of the skycase expansion pump group, the rising panoramic camera of the sky compartment, and the autonomous emergency return verification of the cabin. The ability of astronauts and small robotic arms to work, and verified the functional performance of the relevant supporting equipment related supporting devices in the experimental compartment and outlet activities.

High -intensity out of the cabin in a closed space suit, the physical consumption is huge. But in these 6 hours, except for about 500 ml of water carried by each person, the two astronauts who out of the cabin did not supplement. It can be said that every action that astronauts do in the sky are considerations and courage.

The outlet activities were successfully completed. Before Chen Dong and Liu Yang were preparing to return to the air gate, the ground support team praised the wonderful performance and collaboration spirit of Shenzhou 14 astronauts. The camera beckoned to record this precious moment.

Chen Dong said: "For the first time out of the air gate, it enabled a small robotic arm for the first time. It was the first time that I and Liu Yang came out of the cabin. For the first time, we felt the beautiful scenery outside the cabin. Feeling the hard -working out of the cabin, I feel that the Chinese space station is constantly growing. The most important thing is to feel the encouragement, support and help of the ground personnel. "

Liu Yang said: "The world is one heart, and one step forward is full of hardships and challenges, but a small step forward is a big step in dreams. China Space Station will always be worth looking forward to!"

Cai Xuzhe also thanked the ground team and the majority of science and technology workers for their support for this outlet.

When Liu Yang made a blessing of "Happy Mid -Autumn Festival" in advance, the ground team also immediately responded to "You have to eat moon cakes". The dialogue and communication details between these worlds and earth make the space out of space warm.

The cabin door is larger and the safety rope is longer

When the Shenzhou 12 and Shenzhou 13th multiplication group came out, the cabin door passed was the outlet of the node compartment of the core compartment of the space station. The caliber of the cabin door was 85 cm. In this task, Shenzhou 14 Aerospace officer "went out" from the air gate of the Tianshi experimental compartment for the first time, and the caliber of the cabin door reached 1 meter, allowing astronauts to carry more calmly in the case of a space suit in the cabin. The equipment "get out of the house and travel space."

The seemingly simple size increase is actually a balance between "Gang" and "soft". Under the condition that the operating power of the astronauts is unchanged, the cabin door with a caliber of 1 meter is sealed, and it is self -evident. Responsible for the structure and institutional team of the Fifth Hospital Space Station of China Aerospace Science and Technology Group, which was developed, and innovated for this.

From a technical point of view, the 1 -meter door belongs to a complex spacecraft mechanism, covering all aspects of sealing, transmission, locking, guidance, lubrication, man -machine work, and other aspects. Will the operation process of astronauts open the door of the cabin is complicated? After the exquisite design of the cabin design team, before the astronauts are out of the cabin, they only need to use the supporting handle on the door door to rotate and unlock them. Use the helping agency to eliminate the pressure. Pull the door handle to complete the opening of the opening door. The cabin door is also equipped with a tailor -made cabin door protection cover to ensure the safe use of the Cabin Gate in all aspects. A series of space equipment such as safety ropes, lighting, and off -cabins used out of the cabin also provide guarantee for the smooth out of the cabin.

Safety rope is the "lifeline" connected to the space officer and the space station. When performing Shenzhou VII mission, astronauts Zhai Zhigang completed the first space out of my country's space. The safety rope used when the cabin was out of the cabin was a fixed length, and the effective length was only more than 1 meter. In the construction task of the space station, astronauts must complete the outlet tasks such as the installation and maintenance of the space station. The outlet range is larger, the operation difficulty is more difficult, the safety requirements are stricter, and the long -length and scalable safety rope requires.

The development team of the 529th Factory of the Fifth Hospital of China Aerospace Science and Technology Group carried out a new type of telescopic safety rope institution, proposed a clever design plan, and passed a large number of test verifications to ensure that more than 10 meters long steel wire rope can be narrowed in the institution's narrow. Tens of thousands of times and repetitive entanglement in the space.

In this outlet process, this kind of safety rope can ensure that the astronaut and the space station compartment maintain a safe connection between more than 10 meters, and will not have the movement of hooking and interference in aerospace officers. The test of huge temperature difference, spatial radicals, space particles and other cool environments.

Source: People's Daily

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