Control of the Dynamic Parameters of a Flat Beam Structure by Selection of Fixing

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 This article proposes a method for the justified choice of the fixing method, the type of supports and their stiffness for flat beam structures of an axisymmetric cross section in order to ensure the specified values of the first frequency of natural bending vibrations and the first critical load, by taking into account the action of longitudinal forces and temperature changes. The technique is based on the well-known provisions of the theory of beam oscillations, the Euler’s theory of stability, and uses the coefficients of supports as a criterion for choosing a fixing method, which are pre-normalized to achieve comparable values. The selected fixing provides the specified value of the first natural oscillation frequency, the value of the first critical temperature, or simultaneously both conditions of working efficiency. According to the developed method, comparative calculations of a flat bar structure using the finite element method have been performed. They has shown good convergence of the results for all controlled parameters. The proposed approach can be used in the design of support fixing of flat beam structures for various purposes to ensure their dynamic behavior.

Sobre autores

I. Kudryavtsev

Siberian Federal University

Email: ikudryavcev@sfu-kras.ru
Krasnoyarsk, 660041 Russia

V. Ivanov

LLC Borus

Email: ikudryavcev@sfu-kras.ru
Krasnoyarsk, 660041 Russia

N. Sukhodoeva

Siberian Federal University

Email: ikudryavcev@sfu-kras.ru
Krasnoyarsk, 660041 Russia

O. Rabetskaya

Reshetnev Siberian State University of Science and Technology

Email: ikudryavcev@sfu-kras.ru
Krasnoyarsk, 660037 Russia

A. Mityaev

Siberian Federal University

Autor responsável pela correspondência
Email: ikudryavcev@sfu-kras.ru
Krasnoyarsk, 660041 Russia

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Declaração de direitos autorais © И.В. Кудрявцев, В.А. Иванов, Н.В. Суходоева, О.И. Рабецкая, А.Е. Митяев, 2022

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