China Aerospace 2020

Many people call 2019, which has a high number of launches and many major tasks, as “China Aerospace super 2019”. In 2020, China’s aerospace industry will continue its “super model”. What are the major events? Last month, China’s Mars exploration mission was unveiled by NASA for the first time. According to the plan, China will launch a Mars probe next year to carry out global and comprehensive Mars exploration. The flight control team of China’s Mars exploration mission also made its debut recently.
The young people in the picture are members of the flight control team of China’s Mars exploration mission. This team is actually the team responsible for the flight control of the probe in China’s Mars exploration mission. In a nutshell, they’re like guides to the Mars probe. After the launch of the Mars probe, it will arrive at Mars with the help of this team and complete a series of tasks of “circling, landing and patrolling”.
According to the laws of celestial bodies, the window for human exploration of Mars, that is, the best time for the launch of the probe, is only once every 26 months. Therefore, China’s first Mars exploration mission is planned to be implemented in 2020. According to the plan, it will take about 200 days to reach Mars after the launch of the Mars probe. For more than half a year, the flight control team will accompany and guard until the probe reaches Mars smoothly and safely.
Cui Xiaofeng, chief engineer of Mars exploration mission of Beijing Aerospace Flight Control Center: simply speaking, in the process of flying to Mars, control the aircraft, control its flight direction, and be able to fly to Mars smoothly and accurately, and reach the gravitational field of Mars. After being captured by Mars, it will become a spacecraft around Mars, and then it will be able to accurately control again at the right time, so that it can land in the predetermined landing area on Mars.
To successfully reach Mars tens of millions of kilometers away at one time, the flight control team should not only plan the most scientific route for the probe, but also ensure that it always follows the planned route. Once off track, it may affect the final result of the whole mission.
Cui Xiaofeng, chief engineer of Mars exploration mission of Beijing Aerospace Flight Control Center: because Mars is very far away, the signal delay is very large after it is far away, and the amount of signal is very small. In this case, to control it, we need to take a series of measures and technologies different from previous missions, so that it can complete its established work on the surface of Mars, while ensuring that Safety of inspectors.
Mars exploration mission completes hovering obstacle avoidance test of Lander
At the same time of the first announcement of Mars exploration mission in China, NASA also announced the hovering obstacle avoidance test of lander. The safe landing of the probe is considered to be one of the most difficult challenges for Mars exploration. The success of hovering obstacle avoidance test of the lander also marks a great step forward for China’s Mars exploration.
Zhang Rongqiao, chief designer of China’s first Mars exploration mission: after the launch of the probe, it will take about seven months to fly to Mars, and finally it will take only seven minutes to land on Mars, so this is the most difficult and challenging link.
The hovering obstacle avoidance test of the lander was carried out in the largest comprehensive test site for the landing of extraterrestrial objects in Asia. Different from the earth’s environment, the acceleration of gravity on Mars is about one-third of the earth’s, so in order to be able to simulate the real test environment close to Mars, a special test facility has been built to carry out this test.
Zhang Rongqiao, chief designer of China’s first Mars exploration mission: it consists of three parts: tower structure, follow-up system, and the Mars surface simulation area on the ground. Six groups of steel towers are connected to form a steel structure in the shape of a column, which is 140 meters high and 120 meters straight in the inner circle. This space is enough to meet the needs of our simulation of Mars landing process.