Chaplygin brief biography

Proceedings on theoretical mechanics, hydraulic, aero- and gas dynamics. Together with N. Zhukovsky, he participated in the organization of the Central Aerohydrodynamic Institute of TsAGI,, as a supervisor. Zhukovsky participated in the organization of TsAGI, in the supervisor. The major achievements of mathematical thought include the research of S. Chaplygin on the theory of differential equations.

The father of the future scientist, Alexei Timofeevich, served as a seller in the shop. After graduating from a gymnasium with a gold medal in the year, Sergey enters the Physics and Mathematics Department of Moscow University. Chaplygin begins his first scientific work on hydrodynamics "On the movement of heavy bodies in an incompetent fluid." This study was presented in the year of Chaplygin as a thesis.

Sergei Chaplygin was left at the university to prepare for a professor. In the year, he becomes a privat-Document of Moscow University. The second scientific work of the scientist "On some cases of solid body movement in the liquid", published in the year, was protected by him next year as a master's thesis. Chaplygin wrote the textbooks "Mechanics of the System" and "Propaedeutic Course of Mechanics" for TUZS and Natural Department of Universities.

For research: "On the movement of a heavy body of rotation on a horizontal plane" and "On some possible generalization of the theorem of space using the task of skating balls", Chaplygin in the year is awarded to the St. Petersburg Academy of Sciences with an honorary gold medal. In the year, he makes a report "On the movement of gas with the formation of a gap" at a meeting of the Moscow mathematical society, and in the year it defends the doctoral dissertation "On gas streams", in which the method of studying the jettrack of gas at any subsonic speeds was proposed.

The body moving in the air flow experiences aerodynamic resistance. If the speed approaches the speed of sound, then to find resistance, it is necessary to solve a differential equation called the Chaplygin equation. After defending the doctoral dissertation, Chaplygin was elected professor at Moscow University. In the year, the scientist spoke at a meeting of the Moscow Mathematical Society with a report in which he showed how to calculate the circulation when the wing flow with a flow of air.

At this time, he wrote research: “To the general theory of the wing of the monoplane”, “Schematic theory of the split wing”, “On the influence of a flat -parallel air flow on the cylindrical wing moving in it”, Chaplygin performed the study of the “theory of the lattice wing”. In it, Chaplygin determined that the wing in the form of a blinds has a greater lifting force and is more stable in flight than a continuous wing of the same size.

In the work "Schematic theory of the Divine Wing", it continues the problem of the composite wing and indicates how to improve the aerodynamic qualities of the wing and increase its lifting force. In the year, Chaplygin wrote the work "To the theory of opening and closing." The smaller the speed of the aircraft, the easier it is to land, the safer it is. But low speed is a small lifting force.

With insufficient lifting force, the plane can fall to the ground and break. Therefore, it is necessary to increase the speed so that the plane holds in the air. It turns out a vicious circle. Chaplygin's work helped to break this circle. The wings of modern aircraft have dumplings and flaps. By releasing them, the pilot increases the lifting force by 20, 50 or more percent, which allows him to sit on the strip with lower speed.

In the year, Chaplygin was awarded the Order of Lenin, and in February he was awarded the high title of Hero of Socialist Labor. In October, along with the institute, Chaplygin left for Novosibirsk. Sergey Alekseevich died in Novosibirsk on October 8. Ranenburg, now Chaplygin Lipetsk region. Labor, inhabit. He graduated from physico-mother. On the recommendation of N.

Zhukovsky, he was left under the university. C taught physics in wives. B –18 Director of Mosk. After OKT. In –30 hours. The first works of Ch. In them he gave geometric. Subsequent scientific. For research on the theory of movement of the solid body in the fluid and on the movement of bodies with unintegrated connections of Ch. Anga Honorary Gold Medal. In con. He introduced the doctoral dissertation “On gas streams”, which laid the foundation for the new industry of mechanics-the gas dynamics of the later played a huge role in the development of aviation.

The works of Ch. In the fundamental work of the “theory of the lattice wing”, he solved a number of complex tasks of aeromechanics and aviation, which largely contributed to the development of the theory of stability of the wing of the aircraft in the flight. For the first time they were bred formulas for the unidentified movement of the wing - on take -off and landing, which was of great importance for practical.

In the beginning. Keldysh conducted research on the theory of Flutter, used later in the design of high -speed aircraft. With Ch. During the Great Fatherland, the war of his research on the theory of differential. Zhukovsky Chaplygin "For the best original work on theoretical research in the field of mechanics." In Moscow, a bust and a monument to Part were erected in Moscow.His name is bear streets in Moscow and Novosibirsk, aerodynamic.

In Moscow there is a memorial museum-apartment of Ch. Awarded 2 Orders of Lenin, 2 orders of the Red Banner of Labor. The materials of the Soviet military encyclopedia were used. The actual state adviser Chaplygin Sergey Alekseevich Ranenburg Ryazan province. Stanislav 2nd Art. Anna 2nd Art. Vladimir 4th century The Ranenburg of the Ryazan region was renamed the Chaplygin Author A.

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