What's the difference between six shenzhou spaceship ships?

Since 1999, shenzhou spaceship has made six flights and achieved complete success. The vast number of engineers and technicians who participated in the development and test overcame difficulties and obstacles with the national spirit of self-improvement and courage to struggle, created the glory in the history of manned space flight in China, and realized the continuous leap of manned space technology. So, what are the differences between the six spaceships, especially between Shenzhou VI and Shenzhou V? Shenzhou-1 spacecraft concentrated on five key technologies of spacecraft development. Shenzhou-1 spacecraft is the first experimental spacecraft launched by China. Taking the launch of the Long March II F rocket as an opportunity, this paper mainly examines the feasibility of the overall design scheme of manned spaceflight project, especially the reliability of five key technologies of spacecraft system, such as cabin separation technology, attitude adjustment braking technology, lift control technology, heat protection technology and recovery landing technology. Therefore, the spacecraft adopted the minimum configuration, only eight subsystems closely related to the spacecraft return system were installed, and the spacecraft orbital module was not tested. 1999165438+1On October 20th, the Shenzhou-1 spacecraft was successfully launched. After a space flight of 2 1 hour1minute, it circled the earth 14 times and returned accurately. The first flight test of Shenzhou-1 was a complete success. It marks that China has achieved a major breakthrough in manned space technology. Shenzhou-2 spacecraft focuses on assessing two systems and improving other systems. Shenzhou II spacecraft is the first full-scale unmanned spacecraft in China that meets the requirements of manned flight. On the basis of improving the shortcomings of Shenzhou-1 spacecraft in cabin temperature control and system coordination, the functions of environmental control, life support and emergency rescue are emphatically studied, and the coordination between the spacecraft system and other systems is further tested. Meanwhile, the orbital module has been tested for half a year. On 2006/KOOC-0/October/KOOC-0/0, 5438+0,65438, Shenzhou II was successfully launched, flying in space for 7 days according to the design requirements, and then returning to the ground after circling the earth/KOOC-0/08. This is the world's first space launch in the new century, marking new progress in China's manned space flight and a gratifying step towards achieving the goal of manned space flight. Shenzhou III spacecraft has optimized its performance and added related equipment for manned flight, especially the escape tower. Shenzhou III spacecraft is an improved version of Shenzhou II. Some parts of Shenzhou II have been further improved and verified by a large number of ground tests. At the same time, on Shenzhou III, some equipment and technologies needed for manned flight were added, especially the escape tower used to ensure astronauts' safe escape when the spacecraft failed to launch. Further optimization has improved the performance of many subsystems and greatly improved the safety measures for astronauts. On March 25th, 2002, Shenzhou III was successfully launched and returned safely on April 1 day. This is the first fully manned unmanned spacecraft successfully launched by China, which indicates that China has completely mastered the manned space shuttle technology. Shenzhou IV spacecraft improved the function of emergency rescue system, optimized the manned environment in the cabin, increased the manual control system of astronauts, and enhanced the yaw maneuverability of the whole ship. Shenzhou IV spacecraft, on the basis of fully inheriting the mature technology of the previous three unmanned spacecraft, further improved the reliability and safety of the spacecraft. At the same time, the designers also improved the manned environment in the cabin, fully considered the use of astronauts' seats, the convenience and comfort of getting out of the cabin and other factors, and created a beautiful and comfortable "space bedroom" for astronauts. In order to verify the performance of the spacecraft, in 2002, the astronauts in training also conducted a one-week adaptability test on the Shenzhou IV spacecraft. After the joint test and ergonomic evaluation test of astronauts and spacecraft, astronauts generally reflect the operational design and working environment of spacecraft. On February 30th, 2002, at 65438, Shenzhou IV was successfully launched and returned on October 5th, 2003. As the most comprehensive assessment of manned technology, it is completely consistent with manned flight technology. The successful launch of Shenzhou IV indicates that shenzhou spaceship has fully qualified for manned space flight, and the day when China people dream of space is not far away! As the first manned spacecraft in China, Shenzhou 5 spacecraft has devoted a lot of efforts to this. On the basis of Shenzhou IV spacecraft, technicians have further improved and perfected the safety and comfort of Shenzhou 5 astronauts' seats, and modified them according to the requirements of 1 astronaut. Shenzhou 5 spacecraft is a manned spacecraft with a high degree of automation. In order to ensure the life safety of astronauts and achieve "safe and safe return", the spacecraft is equipped with a variety of safe flight modes. Under normal circumstances, the spacecraft is completely automatic. When something goes wrong, it can be switched automatically, manually by astronauts or remotely from the ground. June 5438+1October 65438+May 2003, the Shenzhou 5 spacecraft was successfully launched. Astronaut Yang Liwei returned in the early morning of June 65438+1October 65438 after a day in orbit in Shenzhou 5. China's first manned space flight was a complete success, realizing the Millennium dream of the Chinese nation, marking that China became the third spacecraft in the world to send astronauts into space by independent research and development. After the Shenzhou-1 spacecraft was developed in Shenzhou 5, especially the first manned space flight test in Shenzhou 5, the software and hardware products and electromechanical thermal design of the whole spacecraft were tested, which proved that the spacecraft had the conditions for manned space flight. From Shenzhou II to Shenzhou 5 spacecraft, each spacecraft carried a large number of different space test equipment, and achieved a lot of space technology and space experimental research results. According to the principle of two people for five days and the ability of autonomous flight for seven days, Shenzhou VI spacecraft has made many technical improvements and humanized designs, which have enhanced the reliability and safety of the spacecraft. On June 5438+1October 65438+February 2005, astronauts Fei and Nie Haisheng went into space on Shenzhou VI and returned on June 5438+1October 65438+July. The second space flight of China's manned spaceflight project was a complete success, marking a solid step for China to achieve the second development goal of manned spaceflight project. Since the implementation of China's manned spaceflight project 10, important achievements have been made in many aspects: the research and construction of the project inherited the increasingly mature space technology of China, explored a development path of manned spaceflight with China characteristics, and improved the overall level of space science and technology in China. Taking the development of shenzhou spaceship as an example, as the most important project of manned space flight, in the development of shenzhou spaceship, researchers faced the challenges of high technical difficulty, high reliability and high quality assurance in the manned space flight field, and with tenacious struggle and pioneering spirit, they constantly realized technological innovation and climbed the new peak of manned space flight technology in the world. Through hard work, the key technical problems of 13 system level have been overcome successively, and a large number of core technologies with independent intellectual property rights have been broken through. The breakthrough of these core technologies not only laid a solid foundation for the prototype design of shenzhou spaceship, but also promoted the improvement of related disciplines, especially the emerging disciplines such as information, materials and energy in the 2 1 century. In the process of climbing the peak of manned space technology, shenzhou spaceship researchers have achieved a new leap in manned space technology. Every successful flight of shenzhou spaceship has greatly inspired the national spirit and exerted great influence at home and abroad. The national flag, the August 1st Army flag and the regional flag of the Hong Kong Special Administrative Region have become precious teaching materials to carry forward the spirit of patriotism. The experiments of animals and plants, microorganisms, microgravity and materials science carried out on board have had a positive and far-reaching impact on promoting the multidisciplinary development of China. The spacecraft orbital module has carried out a series of space science experiments in space, such as space environment monitoring and earth remote sensing observation, and obtained a lot of valuable scientific data.