What is a space station? Be clear

Definition of scientific and technological terms

English name: space station English name: space station definition: a radio station located on an object outside the main body of the earth's atmosphere, or on an object that is about to surpass or has surpassed the main body of the earth's atmosphere. Applied discipline: communication technology (first-class discipline); The above contents of Satellite Communication (two disciplines) were examined and published by the National Committee for the Examination and Approval of Scientific and Technical Terminology.

Space station: also known as space station, space station and orbital station. It is a manned spacecraft running in low-earth orbit for a long time, which can be used for many astronauts to visit work and life for a long time. Space stations are divided into single type and combined type. A single space station can be launched into orbit by a space vehicle at one time, while a combined space station is assembled in space by sending parts into orbit in batches by a space vehicle.

abstract

Humans are not satisfied with short space travel. In order to develop space, we need to build a long-term living and working base. Therefore, with the progress of space technology, the conditions for building a new home in space are ripe. The space station is a manned spacecraft running in low-earth orbit for a long time, which can be used by many astronauts to live, work and visit. Small space stations can be launched at one time, while larger ones can be launched in batches and assembled into a whole in space. In the space station, there should be all the facilities where people can live and never return to the earth. The International Space Station has a complex structure and a huge scale, which consists of astronaut accommodation module, experimental module, service module, docking transition module, truss and solar cell. The probation period is generally 5~ 10 years. The total mass is about 423 tons, the length is108m, the width (including the wingspan) is 88m, and the orbital height is 397km. The atmospheric pressure in the manned cabin is the same as the ground, and it can carry six people. Upon completion, the total mass will reach 438 tons and the length will be 108 meters.

Structure and composition

Its structural features are relatively large volume, long on-orbit flight time, multiple functions and wide range of space scientific research projects. The basic composition of the space station is a manned living cabin, plus a working experimental cabin, a scientific instrument cabin and other cabins with different purposes. Solar panels and docking kjz must be installed outside the space station.

Hatch to ensure power supply in the station and realize docking with other spacecraft.

trait

One of the characteristics of the space station is economy. For example, the space station can accept astronauts to carry out experiments in space, which can make manned spacecraft a tool for transporting astronauts only, thus simplifying its internal structure and reducing the materials needed for its flight in space. This can not only reduce the difficulty of its engineering design, but also reduce the space cost. In addition, the space station can be manned or unmanned during operation. As long as the astronauts start debugging, it can work as usual, check regularly, and then get results. This can shorten the astronauts' time in space and reduce a lot of consumption. When the space station fails, it can be repaired and replaced in space, thus prolonging the life of the spacecraft. Increasing service life can also reduce the cost of space flight. Because the space station can fly for a long time (months or years), it ensures the continuity and depth of space science research and plays an important role in deepening research and improving the quality of scientific research.

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Transfer from Baidu Encyclopedia Space Station entry.