ISSN 1991-2927

ACP № 1 (59) 2020

Author: "Kirill Vladimirovich Oleynikov"

Yury Nikolaevich Sankin, Ulyanovsk State Technical University, Doctor of Engineering, Professor; graduated from the Faculty of Physics and Mechanics of Leningrad Polytechnic Institute; Professor at the Chair Theoretical and Applied Mechanics at Ulyanovsk State Technical University; author of monographs and articles in the field of theory of vibrations and stability of motion. [e-mail:]Y. Sankin,

Kirill Vladimirovich Oleynikov, Ulyanovsk State Technical University, [e-mail:]K. Oleynikov

Frequency Method in Problem of Wing Flutter in Subsonic Gas Flow 25_4.pdf

The paper is devoted to a problem of flutter of flexural-and-torsional vibrations of outer wing of uniform section and its divergence. As the considered problem is linear, the solution can be reduced to the analysis of proper values of ordinary differential equations. This problem can be actually solved by the Bubnov-Galerkin method or the finite-element method when flexural vibrations are approximated by 3rd-degree polynomial, torsional ones are approximated by 1st-degree polynomial. The present approach results in a high-level system and requires a lot of computer time.

Wing flutter, subsonic flow, frequency method.

2011_ 3

Sections: Mathematical modeling, calculi of approximations and software systems

Subjects: Mathematical modeling.

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