Jupiter ploughs fish and catches dreams

Great undertakings begin with dreams, become reality based on innovation.

From Chang 'e III, Yutu to Chang 'e IV, Yutu II, and then to Chang 'e V, the successful exploration of the moon by the China probe outlined the dream-chasing footprint of the Chinese nation towards the great rejuvenation.

Behind the moon and dreams, of course, there are a group of dream catchers who graze the stars and cultivate the universe. They followed for decades, from the depths of the mountains to the shore of the sea, and never gave up; From engaging teenagers to white-haired academicians, they are determined to struggle and live endlessly. ...

From a teenager to a bald head, holding 0.5 grams of lunar soil, Ouyang Ziyuan has been exploring the moon and dreaming about it all his life.

1978 In May, the United States sent China a moon rock sample weighing 1g, and the state decided to use half of it for scientific research and the other half for public display. With a sample of 0.5g, Ouyang Ziyuan and his colleagues in laboratories all over the country spent more than four months studying hard, and soon published 14 papers. At that time, Ouyang Ziyuan's dream was to own a piece of lunar soil collected by China himself.

45 years of preparation and demonstration, 16 years of exploring the moon and chasing dreams. From a young researcher to a white-haired old academician, Ouyang Ziyuan, the first chief scientist of China's lunar exploration project, spent most of his life. He and his colleagues completed the project report of China's first lunar exploration, which promoted China's deep space exploration.

"Life is so long, we should dedicate the most precious time to the place where the motherland needs it most! It is dreams that bring us closer and closer to our goals. " Ouyang Ziyuan said.

At 23 o'clock in the middle of the night on February 3, near midnight in Beijing, the spring outside the window was chilly and the traffic inside the window was heavy.

The name of the command is constantly changing, and the multi-objective flight control plan is gradually updated ... A string of data is printed on the thick lens of an old man, reflecting a gorgeous light.

At 23: 00/kloc-0: 00, after a few seconds of silence when the air solidified, thunderous applause broke out in the hall, and the China spacecraft successfully took off China's first extraterrestrial object!

Chang 'e V took off on the moon, but the old man couldn't stand up. After sitting for a long time for several hours, the pain in his waist made him sit in the chair. This old man is Ye Peijian, academician of China Academy of Sciences, technical consultant of the Fifth Academy of Aerospace Science and Technology Group, chief designer and commander-in-chief of Chang 'e-1 satellite system.

"Twenty-three days is the test of Chang 'e V for ten years. The "three-step" lunar exploration around, down and back can be successfully completed. It's time for us to hand in our papers. There is not a small problem in the whole process, not even a small problem. I dare not say that I have kept it in mind, but it is expected. "Looking back on the seven-year development and three-year storage of Chang 'e V, as a technical consultant and soul figure, Ye Peijian was deeply touched.

Zheng is the designer of the cryogenic accumulator for the Long March 5 rocket. Since he took over the design work, he made up his mind to thoroughly optimize the thermal buffer catheter. After full analysis and calculation, he found out the main factors affecting the vibration fatigue life of the conduit. Just as he was preparing to optimize the design, he was told that the catheter had been mass-produced, and scrapping it would cause huge economic losses. He did not give up and turned to the reorganization and optimization of scheme design. After several rounds of "verification, improvement and re-verification", the optimization and improvement were finally completed, which reduced the vibration of the conduit, greatly improved the anti-vibration fatigue life of the conduit and realized the thorough optimization of the accumulator conduit.

Zou Ying is the person in charge of the simulation modeling of the Long March 5 rocket control system. She has always been meticulous, absorbed, highly concentrated in the simulation test, strictly controlled the flight test state, and never let go of any abnormal curve, so that the simulation test is always in a high-quality operation state. Once she finds a little clue, she will take the initiative to find the reason and solve the problem with the designer. Her serious work attitude ensures the effectiveness and efficiency of each simulation test curve.

In 20 14, Tong Xuefeng participated in the initial sample assembly task of Chang 'e-5 detector for the first time and served as the main post of the project. The function of sealer is very important to realize the non-overflow and good stratification of lunar soil samples. At this moment, Tong Xuefeng, who loves to ponder, proposed to design the tooling and sew the sealing machine on the tooling to achieve the sewing effect. This scheme has been unanimously recognized by technicians, but new difficulties have followed. Because the sewing operation has never been practiced, we still need to explore from the beginning. In order to ensure the success of the sampling task, Tong Xuefeng practiced sewing skills day and night. During this period, he carefully observed his mother sewing clothes and buttons at home, and asked his wife who was engaged in surgery to demonstrate how doctors could thread and tie knots. In order to find the right needle, he almost ran all over the supermarket near his home. During the sewing training of 1000 sealing machines, Tong Xuefeng was stabbed by needles for countless times, and his eyes ached and tears flowed. Subsequently, Tong Xuefeng explored a whole set of methods of threading, threading and knotting, and was identified as a special post for sewing this kind of sealing machine. In this way, Tong Xuefeng became the "royal tailor" of Chang 'e V, and the subsequent repeated tests also showed that the sealing device sewn by Tong Xuefeng had a good effect and firm seams, which could effectively ensure the work, and the test pass rate was 100%.

Liu is the chief engineer in the field of liquid oxygen kerosene engine. He has been engaged in the development of liquid oxygen kerosene engines for more than 30 years. From scheme design to product finalization, every valuable progress worth looking back can not be separated from his hard work. Once, the whole liquid oxygen kerosene engine suddenly exploded shortly after ignition, and the test fire extinguishing system was quickly started and the fire was quickly extinguished. Before the alarm was lifted, Liu rushed into the scene of the explosion first, and couldn't wait to see which part of the explosion was the most serious, so as to judge the initial cause of the engine explosion. Facing the intense thermal radiation after the engine test, he ran straight to the test bench and looked around under the engine nozzle, fearing that he had missed something, but he was a little unwilling and sad. High-intensity R&D progress has kept Liu Guozhan in a state of high mental tension for a long time, coupled with irregular diet and lack of rest, and his physical condition has become increasingly pessimistic. However, he has always maintained a positive working attitude and silently guarded his engine products with his own life.

Since the project of Chang 'e-5 orbiter was established, Zhang Yuhua, the chief designer of Chang 'e-5 orbiter, led the team to "start from scratch" and started the research and development journey. Chang 'e-5 orbiter is the longest and most difficult spacecraft in Zhang Yuhua's lunar exploration. Now, after seven years of research and development and three years of storage, this dream has finally come true. Zhang Yuhua, nicknamed "Autumn Moon", seems destined to go to the moon. She worked in manned space flight for 18 years, and came to the lunar exploration line with a paper order, from Chang 'e III, Chang 'e IV to Chang 'e V, along the way, from scratch, she led the team to the moon step by step. Zhang Yuhua always said, "Man's exploration of space has just begun. Starting from exploring the moon, we will go further.

Author: Hu Zhe

ISBN: 978-7-5 166-5742-3

Xinhua Press, April, 20021year

Pricing: 32.50 yuan