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Gavrilov A.A., Kudina, L.I., Kucha G.V., Morozov N.A. THE INFLUENCE OF SECTION GEOMETRIC CHARACTERISTICS ON THE FREQUENCIES OF FREE FLEXURAL VIBRATIONS OF THIN STRAIGHT BARSWe studied the frequency and the main forms of free flexural vibrations of thin rods based on the theory that takes into account secondary shifts and rotational inertia of the sections. We used the boundary element method and determined the influence of the bar section characteristics as relative values on the frequencies of free oscillations. The comparison of calculation results with existing theories is provided.Key words: bending, thin-wall bar, oscillations.
References:
1. Beylin E.A., Petrova I.G. Definition of frequencies of free flexural twisting fluctuations of thin-walled cores with partially closed contour of section // Issledovaniya po mehanike stroitelnih konstruktsiy i materialov. — L., 1990. — S.26-33.
2. Korbut B.А., Lazareva G.V. About the dynamic theory of thin-walled curvilinear cores // Prikl. mehanika, 1982. — Т. XVIII. — №5. — S. 98-104.
3. Kucha G.V., Gavrilov А.А. Flexural fluctuations of not cutting beam of the combined section // Matematika. Informatsionnie tehnologii. Obrazovanie. Sbornik nauchnih trudov. Orenburg: OGU, 2006, S.86-90.
About this article
Authors: Kudina L.I., Gavrilov A.A., Kucha G.V., Morozov N.A.
Year: 2011
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Editor-in-chief |
Sergey Aleksandrovich MIROSHNIKOV |
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