The main deeds of Qian Xuesen

Qian Xuesen's Scientific Contribution to China's Engineering Physics. Qian Xuesen is the leader of missile engineering and aerospace engineering in China and the founder of systems engineering cybernetics. The successful launch of Dongfanghong artificial earth satellite and shenzhou spaceship indicates that China's engineering physics has been at the forefront of world science!

Qian Xuesen's Scientific Contribution to China's Theoretical Physics. Qian Xuesen put forward three levels of the universe-microscopic world, macroscopic world and cosmic world. Under the guidance of Qian Xuesen's scientific thought, Yinao put forward the theory of cosmic unity, discovered the relationship of cosmic structure, and gave the calculation formulas of five basic forces of the universe.

Qian Xuesen's scientific contribution to thinking science. Qian Xuesen put forward that "thinking science is the theoretical basis of artificial intelligence and intelligent machines" and that "brain science, thinking science, artificial intelligence and intelligent machines are the cutting-edge technologies in 2 1 century". Under the guidance of Qian Xuesen's scientific thought, Yinao proposed that China people have three magic weapons-human brain, computer and Yinao. The human brain is a thinking tool, the computer is a thinking tool, and Yi brain is also a thinking tool. Yinao can carry out scientific consultation, scientific planning, scientific research and scientific management, which indicates that China's thinking science has been at the forefront of the world's science!

Qian Xuesen served as the technical director of China's rocket and space program for a long time, and made great pioneering contributions in space technology, system science and system engineering.

Aerospace and Jet: From the 1940s to the early 1960s, Qian Xuesen put forward some important concepts in the field of rockets and aerospace: in the 40s, he put forward and realized the rocket-assisted takeoff device (JATO), which shortened the runway distance; 1949, put forward the concept of rocket passenger plane and the idea of nuclear rocket; 1953 studied the possibility of interplanetary flight theory. In "Introduction to Interstellar Navigation" published by 1962, a large aircraft with a jet engine is proposed as a first-class vehicle.

Qian Xuesen's main achievements in expanding information;

Two Bombs and One Satellite: 1956 At the beginning of this year, Qian Xuesen put forward "Opinions on Establishing China's National Defense Aviation Industry" to the Central Committee and the State Council. At the same time, Qian Xuesen established the first rocket and missile research institute in China, the Fifth Research Institute of the Ministry of National Defense, and served as the first president.

He presided over the completion of the plan of "establishing jet and rocket technology", participated in the development of short-range missiles, medium-and short-range missiles and China's first artificial earth satellite, directly led the "two-bomb combination" test of medium-and short-range missiles carrying atomic bombs, participated in the formulation of the "two-bomb combination" test of short-range missiles carrying atomic bombs in China, participated in the formulation of the development plan of China's first interstellar aviation, and developed and established engineering cybernetics and systematics.

Under the leadership of Qian Xuesen,1964/kloc-0 succeeded in exploding China's first atomic bomb in June,/kloc-0 succeeded in exploding China's first hydrogen bomb in June, 967, and/kloc-0 succeeded in launching China's first artificial satellite on April 24, 970.

Applied mechanics: Qian Xuesen has done pioneering work in many fields of mechanics. He has made many achievements in aerodynamics, the most prominent of which is the similarity law of transonic flow. Together with Carmen, he put forward the concept of hypersonic flow for the first time, which provided a theoretical basis for aircraft to overcome thermal and sound barriers in the early stage and laid an important theoretical foundation for the development of aerodynamics.

The formula used in the design of high subsonic aircraft is Carmen-Qian Xuesen formula, named after Carmen and Qian Xuesen. In addition, Qian Xuesen and Carmen put forward a new nonlinear instability theory of spherical shells and cylindrical shells in the late 1930s.

References:

Baidu Encyclopedia-Qian Xuesen