Technical director
In the self-design work of medium and short-range missiles, Ren Xinmin served as the deputy chief designer of this type, in charge of engine development. The first self-developed liquid rocket engine was successfully tested in 1962 1.
1962 March 2 1 The flight test of the first short-range ballistic missile failed. Ren Xinmin presided over the analysis and demonstration of various engine system schemes, and conducted ground tests of different schemes. The improved medium and short-range missile was tested again on1June 29, 964 and achieved complete success. This indicates that China has mastered the technology of developing its own missiles, and has taken the step of developing its own missiles.
After the successful development of short-range missiles, Ren Xinmin began to be responsible for the development of liquid medium-range ballistic missiles. Together with relevant scientific and technical personnel and workers, we have successively solved the key technologies such as engine unstable combustion, high-speed and high-performance turbopump design, four-machine parallel technology, vacuum brazing of thrust chamber, corrugated plate forming, plasma spraying and material compatibility. And personally analyze and calculate, participate in the trial operation and participate in the discussion. After repeated comparison of various technical schemes and trial operation of 100 times, the scheme of zoning and liquid phase zoning was finally adopted, which provided the necessary conditions for the successful development of this medium-range missile. 1965, he was fully responsible for the development of this type of missile, and led a team to the test base to lead the flight test, which made important contributions to the successful development of this type of missile on schedule.
artificial/man-made earth satellite
Ren Xinmin is the technical director of the Long March-1 carrier rocket, which launched China's first artificial earth satellite, Dongfanghong-1. From the overall scheme to the sub-systems, he went deep into the field to personally analyze, study, check, audit and implement various technical problems. 1970 On April 24th, China's first artificial earth satellite was successfully launched by Long March 1. This enabled China to master the technology of developing multi-stage launch vehicles and launching artificial earth satellites, which opened the prelude to China's space activities. The Long March-1 carrier rocket thus entered the space history of China. On the evening of May 1 Sunday, he and Qian Xuesen, a famous scientist, were cordially received by President Mao Zedong, Premier Zhou Enlai and other party and state leaders on the Tiananmen rostrum. Premier Zhou called them "people who put satellites in China".
Experimental satellite communication engineering
From September 65438 to September 0977, the experimental satellite communication project was listed as one of the three major tasks of China's missile and space industry in the early 1980s. Ren Xinmin was appointed as the chief designer of the project. As early as the mid-1960s, when he was the director of the liquid engine research institute, he organized a few scientific and technical personnel to carry out the pre-research work of liquid hydrogen and liquid oxygen engines according to the development trend of foreign power plant technology. In the 1970s, after the establishment of the project, as the vice minister in charge of technical work, he has been leading and paying attention to the development of the launch vehicle of this project. Especially in the demonstration of adopting two technical schemes of conventional propellants (unsymmetrical dimethylhydrazine and nitrogen tetroxide) or low-temperature high-energy propellants (liquid hydrogen and liquid oxygen) in the third stage, it was finally decided to adopt liquid hydrogen and liquid oxygen as the first scheme in the third stage of the launch vehicle for launching communication satellites, and named the launch vehicle Long March III.
The improved Long March 3 successfully sent the second Dongfanghong-2 into geosynchronous transfer orbit on April 8, 1984, and fixed it over the equator of125 E on April 6, with all performance indicators meeting the design requirements and achieving success. So far, the three major tasks of China's missile and aerospace industry in the early 1980s have all been completed, which indicates that China's launch vehicle technology has entered the advanced ranks in the world. As the chief engineer of the project, Ren Xinmin has directed the launching and positioning of practical communication satellites for many times, and provided communication, broadcasting, television and other services for relevant departments of the national economy and military units, which has received great economic and social benefits.
1In April, 1990, Ren Xinmin, as the chief designer of launching foreign satellites, successfully put the Asian-1 communication satellite developed by Hughes Company of the United States into geosynchronous transfer orbit with Long March III, successfully completed the commercial launch contract, and achieved a breakthrough in the international commercial launch service of China launch vehicle.
Meteorological satellite engineering
Ren Xinmin was in charge of Fengyun-1 meteorological satellite project when he was the deputy minister of the Seventh Ministry of Machinery Industry, especially attached great importance to the launch of Long March 4A, from the determination of technical scheme to the solution of major technical key, and was appointed as the chief designer of Fengyun-1 experimental meteorological satellite project, responsible for the development of Long March 4A, Fengyun-1 and other systems. 1September 1988 and1September 1990, the Long March 4A was successfully launched twice. Although the first FY-1 has been running normally for only 39 days, the images received on the ground are close to the level of the third generation operational meteorological satellite of the United States, and the second experimental meteorological satellite has contributed to the weather forecast of the 1 1 Asian Games held in Beijing. These two experimental meteorological satellites have achieved many scientific, technological, economic and social benefits.
In addition, Ren Xinmin also served as the chief designer of Fengyun No.1 and No.2 batches (improved Fengyun No.1). He is also the chief designer of two other recoverable scientific and technological experimental satellite projects. One of them has successfully launched and recovered two satellites; The other has successfully developed the Long March II carrier rocket and a new type of recoverable scientific and technological test satellite, which were successfully launched and recovered twice in1August 1992 and1July 1994.
Ren Xinmin was also a technical consultant for the Dongfanghong-3 project, a new generation of large-capacity communication satellite. He went to xichang satellite launch center twice in February 1994 and February1994 10, and participated in the organization and leadership of the launch of Dongfanghong-3 by Long March 3A, counterweight star and Long March 3A. 1 China Encyclopedia Space Volume Editorial Committee. China Aerospace Encyclopedia Volume. Beijing: China Encyclopedia Publishing House, 1985.
2. Editorial Committee of Contemporary China Aerospace Industry (with Ren Xinmin as the deputy editor). Space industry in contemporary China. Beijing: China Social Sciences Press, 1986.
3 Ren Xinmin. Looking forward to the future--on China's space industry. Review and prospect (1949- 1989). Beijing: National Defense Industry Press, 1989: 263-266.
4 Ren Xinmin. China's space development policy. Space utilization and application in the Pacific Ocean, Volume 73 AAS, 1990.
5 Ren Xinmin. Discussion on China's space development strategy. Proceedings of the Symposium on Applied Satellites and Satellite Applications (2). Beijing: Aerospace Press, 199 1.