Scientific
  Flasher    Double Material "01" Commander Wang Guangyi: Witness the Daylight Fireworks

  Photo courtesy of Wang Guangyi, Beijing Institute of Technology

  At 12:41 on July 23, the Long March 5 Yaosi carrier rocket was ignited and launched, sending my country's first Mars probe "Tianwen-1" into space, and China took the first step in planetary exploration. The "01" commander Wang Guangyi of this mission was sitting in the center of the test launch hall. Although he hadn't slept all night, his face still couldn't hide his excitement.

  He stared closely at the speed and altitude curve of the rocket flying on the command screen, and carefully listened to the measurement and control tracking sound from the dispatcher. After more than 30 minutes, the tracking results showed that the separation of the weapons and arrows was normal, and the hall instantly burst into applause. The cheers were louder than waves, and everyone had forgotten that they stayed up all night.

  At this time, Wang Guangyi leaned back in his chair, and the string that had been tense in his heart for more than two months finally slowly unfolded. Wang Guangyi is the first and only double-material "01" commander of the Chang 5 and Chang 72 rockets in my country. In 1999, after graduating from the Department of Automatic Control of Beijing Institute of Technology, he took root in the aerospace industry for 20 years.

  This is the second time that Wang Guangyi has served as the commander of the first applied launch "01" of the new rocket. As early as April 20, 2017, in the first application launch of the Changqi rocket-the "Tianzhou-1" mission, he successfully achieved the "zero window" launch. The fire detection mission encountered more challenges-due to the adjustment of the previous mission, the recovery time for the rocket launch platform was also shortened, from 48 days directly to 35 days, and on this basis, it must be compressed again. It will take 4 days to launch in the first window.

  Although he has to race against time, Wang Guangyi still insists that all work must be "stable" first, and to regain lost time, the key is to find short-term, restrictive factors and coupling relationships between systems. He will follow up all the links in the front line, because he knows that he needs to optimize the process arrangement while ensuring quality and not reducing the process to achieve the goal of reducing 4 days.

  “In the early stage of studying the recovery plan of the Long March 5 activity launch platform, we found optimization and solutions for problems such as unreasonable serial work arrangements, long recovery time after outdoor shooting, and insufficient allowance for severe weather.” Wang Guangyi said .

  Working all night is a small challenge brought about by the noon launch. Some positions even require 36 hours of continuous "operation". "I believe everyone will have a good mental state even at night, because everyone understands how important things they are involved in." Wang Guangyi said. In fact, he has become accustomed to working at night. During this mission, he would work overtime in the factory or test hall for nearly 80% of the days.

  The temperature inside the fairing rises too fast, which is another challenge brought by the noon launch. Through mathematical modeling theory analysis and sorting out the air-conditioning guarantee situation of previous tasks, Wang Guangyi immediately led the team to propose 3 measures: “First, postpone the time to stop the air conditioning in the fairing; secondly, increase the air inlet area to improve heat exchange efficiency; finally adopt The dual-unit air conditioner guarantees to minimize the initial temperature before the air conditioner stops supplying air." After verification by the simulation launch drill, the measures have worked well, and the confidence in the subsequent smooth completion of the detector's environmental protection has been enhanced.

  If you want to talk about Wang Guangyi's initial impression of the aerospace industry, you need to go back to 1990 when the "Asia One" was successfully launched from the Xichang Satellite Launch Base. He knew about space launch for the first time, and for the first time knew about a place called Xichang Satellite Launch Center in the southwest of the motherland. Five years later, Wang Guangyi, who had a dream of aerospace, entered the Department of Automatic Control of Beijing Institute of Technology.

  "The four years of careful training in the school and the strong atmosphere of serving the country with science and technology have been deeply infecting and inspiring me, and it has gradually strengthened my idea of ​​joining the aerospace industry." Speaking of choices, Wang Guangyi recalled. "After four years of university, I went from confusion to growth. I have calmness and confidence in my heart, unique skills and expertise in my hands, and responsibility and responsibility on my shoulders." The red gene of BIT is deeply integrated into the blood.

  In the autumn of 1999, he walked into the Daliang Mountain in Xichang. As a member of the aerospace industry he was amazed by when he was a boy, he started a 21-year career as an astronaut.

  China Youth Daily·China Youth Daily reporter Ye Yuting Correspondent Xu Binru Li Hanjian Hanan Source: China Youth Daily