China Youth Daily Client News (China Youth Daily, China Youth Network Intern Reporter Chen Xiao, Reporter Qiu Chenhui) "I feel very lucky and proud of the ** rocket engine off the assembly line ceremony, and I have also become a 'young man chasing rockets'." On February 1, at the first complete machine off the assembly line of the engine "Force-85" of the ** liquid rocket "Gravity II", Chen Yawei, a graduate student of the School of Materials Science and Technology of Tsinghua University, couldn't help but sigh.
From January 29th to February 2nd, the School of Materials Science and Technology of Tsinghua University and the School of Aerospace and Aeronautics focused on the theme of "Science and Technology Casting the National Foundation, Innovation and Cultivating Talents", and formed a 17-member special detachment of "Dream Rocket Journey" to carry out social practice in Liangxi District, Wuxi City.
The members of the detachment walked into the first-class factory of the new generation of liquid launch vehicle engines in Dongfang Space to gain an in-depth understanding of the development and production process of the heavy weapons of the country. **The plant covers an area of about 6,000 square meters, including a 100,000-level valve assembly clean room, a turbine pump assembly and dynamic balancing room, an engine test bench, a test product cleaning bench, etc., which can meet the needs of the "Force-85" development stage, sub-system performance test and engine dismantling, inspection and cleaning after commissioning.
On January 11, the Gravity-1 Yao-1 commercial launch vehicle independently developed by Oriental Space Corporation was successfully launched, and the three satellites carried were successfully sent into the scheduled orbit, refreshing the world's largest solid launch vehicle and China's largest private commercial launch vehicle.
Yao Song, a 2011 alumnus of the Department of Electronic Engineering of Tsinghua University and co-CEO of Oriental Space, introduced to the members of the detachment that as the core power of the "Gravity-2" medium and large liquid launch vehicle, the Force-85 engine can further improve the rocket's carrying capacity to 15-20 tons in low earth orbit, and reduce the cost to the level of SpaceX's "Falcon 9".
Peng Haomin, vice president of Oriental Space, introduced that the Force-85 engine uses liquid oxygen kerosene propellant, which has the characteristics of high reliability, large thrust, reusability, non-toxic environmental protection, and good economy. In the future, the first stage of "Gravity II" will use 9 "Force-85", and the second stage will use 1 "Force-85" vacuum version, which can meet the power needs of the rocket.
Walking into Oriental Space, I deeply felt the integration and innovation of multi-professional, multi-disciplinary and multi-field in the development of the Force-85 engine, from the optimization of the overall combustion efficiency of the engine to the selection of parts and materials. I also experienced the unremitting efforts of independent innovation and the craftsmanship spirit of excellence in the research and development of the Force-85 engine, which is worthy of our continuous learning. Zhou Ruopu, a graduate student of the School of Aerospace and Aeronautics of Tsinghua University, said.
Tsinghua students participated in the first complete machine of the engine "Force-85" of the liquid rocket "Gravity-2" off the assembly line. Photo courtesy of the interviewee.
It is reported that the special detachment of "Dream Rocket Journey" visited a total of 6 well-known enterprises covering aerospace, semiconductors and photovoltaics. In addition, the members of the detachment set foot in the ancient town of Huishan, stopped in front of Fan Zhongyan's ancestral hall, visited the former residence of Xue Fucheng and Donglin Academy, and appreciated the wisdom and mind of the ancients. Through practice, we can understand the natural and cultural environment, employment and entrepreneurship environment, and the development status of science and industry enterprises and high-tech enterprises in Wuxi.
We fully feel the determination and confidence of Wuxi, a famous historical and cultural city, to devote itself to the front line of scientific and technological innovation, to solve the technical problems of "stuck neck", and to build a new highland of China's high-tech industry, and also to engrave the concept of industrial prosperity in the hearts of our young students. Cheng Zekun, a graduate student of the School of Materials Science and Technology of Tsinghua University, said.
Through this "Dream Chasing Rocket Journey", the members of the detachment have expressed that they have personally felt the leapfrog development of China's aerospace science and technology, and will strive to carry forward the spirit of "two bombs and one satellite" and the spirit of manned spaceflight, have the courage to innovate and make breakthroughs, and hold up the dream of becoming a powerful country in science and technology with an attitude of exploring true knowledge and seeking truth and pragmatism, and gather the vigorous force to realize the Chinese dream.
*: China Youth Daily client.