Reasons for the successful launch of Shenzhou VII

Shenzhou VII is an important stage of China's space flight. Now the Shenzhou VII carrier rocket has been developed, and it is planned to be launched in 28. By then, Shenzhou VII will focus on breaking through the technology of astronauts' extravehicular activities (spacewalk). It was originally scheduled to be launched in 27, but it was delayed for half a year due to technical problems of components, and it is planned to be launched in 28. The Shenzhou VII spacecraft was still launched by the Long March II F carrier rocket, which had successfully sent six shenzhou spaceship into space and had a mature technical foundation. At present, the procurement and production of components for a new launch vehicle have started. Jing Muchun, chief designer of the launch vehicle system for manned spaceflight project, said that this time they will use higher quality components. In view of the flight situation of the previous rockets, researchers will also make partial improvements to this rocket to further improve its reliability. In addition, they also consider adding some cameras to the rocket to make the working state of the rocket more intuitive. Starting from Shenzhou VII, China entered the second phase of manned space flight. In this stage, the scientific goals of astronauts' walking out of the cabin and space rendezvous and docking will be realized one after another. All the launching tasks of the second phase of the project were undertaken by the Long March II F rocket. Jing Muchun said that during the Eleventh Five-Year Plan period, they will basically complete the second phase of manned space flight, and finally complete the rendezvous and docking of people. It is estimated that there will be five or six rocket launch missions. Different from Shenzhou V and Shenzhou VI, the key points in the development of Shenzhou VII rocket are spacesuit and valve brake. Because "Shenzhou VII" will realize the spacewalk, whether the astronauts can adapt to the vacuum environment suddenly from the cabin pressure, valve brakes and spacesuits play an important role. "At present, the other parts of Shenzhou VII are almost the same, only the spacesuit has to tackle key problems, and the research progress of the spacesuit determines the progress of Shenzhou VII." Huang Chunping added, "However, China is fully capable of solving it." In order to adapt to the vacuum environment, the "Shenzhou VII" spacesuit is much better than Shenzhou VI in terms of air tightness, communication, excretion, communication, power supply and movable joints. "Shenzhou VII" will have three astronauts, one will walk out of the cabin, one will meet in the orbital module, and there will be people left in the return module. The extravehicular activities will include items such as walking, operating, screwing and other installation equipment, so as to prepare for the establishment of a space station in the future. According to the four scientific objectives of China's lunar exploration satellite project, Chang 'e-1 selected six sets of 24 payloads, including CCD stereo camera, laser altimeter, imaging spectrometer, gamma /X-ray spectrometer, microwave detector and solar wind particle detector. Among them, CCD stereo camera is a special camera for shooting three-dimensional images of the full moon, which is used for the first time in China. The imaging spectrometer is used to obtain the light wave spectrum of the moon surface; Gamma /X-ray spectrometer is used to detect elements on the surface of the moon; The microwave detector can not only obtain the information of lunar soil thickness, but also give the brightness temperature map on the back of the moon and the information of the lunar poles. China will carry out the manned space mission of Shenzhou VII in the second half of this year. At present, all preparations are proceeding as planned. It is reported that the "Shenzhou VII" flight will achieve a number of major technological breakthroughs. First, the number of astronauts will increase to three; Second, it will realize the first spacewalk of China astronauts; Third, after the spacecraft enters the scheduled orbit, it will release a small satellite (hereinafter referred to as "companion star" in this paper) at the right opportunity, and so on. What can "companion star" do? According to Hong Kong Ta Kung Pao, the mission of this "companion star" is to take a close-up photo of Shenzhou VII flying in orbit with a CCD stereo camera. At that time, we will get the first three-dimensional exterior photo of China spacecraft flying in orbit. This photo takes space as the background and shows the unique scenery of "Shenzhou 7" running at high speed, which will become a permanent historical witness of the Chinese nation's flying. Did "Shenzhou VII" just take a robot "photographer" into space? Ha ha, of course not! Before this, China has successfully launched several small satellites, and the technology of small satellites has reached maturity. It is even more significant for Shenzhou VII to take its companion into space. First of all, it is the change in the means of launching small satellites. In the past, China's small satellites were all launched into orbit by launch vehicles; This time, the small satellite is placed at the front end of the Shenzhou VII orbital module. When the spacecraft enters the predetermined orbit, it can automatically eject the spacecraft according to the instructions, or it can be released manually by the astronauts. The release method is more flexible. "Choosing the opportunity" means that you can release it when you want. Secondly, the "companion star" can be used as a reconnaissance satellite. According to Hong Kong media, the companion star carried by Shenzhou VII is equipped with a CCD stereo camera similar to Chang 'e-1, which can capture high-definition images of the ground. The "companion star" was released into orbit by the "Shenzhou VII" to take photos and reconnaissance of the surface of interest. Third, "companion star" can become a very terrible space weapon. It can be released by the spacecraft to carry out the task of attacking enemy space targets; It is also the most effective and faithful "bodyguard" of our ship-when the enemy attacks our ship, our ship can release the "companion star" in time and use the weapons it carries to destroy the enemy's attack weapons or perish together with them. I copied this. I didn't write it. ..