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. [email: yns@ulstu.ru]Y. Sankin, Kirill Vladimirovich Oleynikov, Ulyanovsk State Technical University, [email: okirill87@ya.ru]K. Oleynikov


Frequency Method in Problem of Wing Flutter in Subsonic Gas Flow
The paper is devoted to a problem of flutter of flexuralandtorsional 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 BubnovGalerkin method or the finiteelement method when flexural vibrations are approximated by 3rddegree polynomial, torsional ones are approximated by 1stdegree polynomial. The present approach results in a highlevel system and requires a lot of computer time. Wing flutter, subsonic flow, frequency method.

