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Authors
V. V. Saurin; G. V. Kostin

Digital Object Identifier (DOI)
10.3182/20070829-3-RU-4912.00019

Page Numbers:
115-119

Index Terms
distributed-parameter systems,eigenvalue problems,frequency characteristics,verification

Abstract
Equations describing small free oscillations of a rectilinear elastic beam with a rectangular cross section have been obtained within the framework of the linear theory of elasticity and solved using the method of integrodifferential relations (IDR). The influence of geometry and elastic characteristics on the frequencies and shapes of free beam oscillations is studied. It is shown that the longitudinal motions admit two types of displacement and internal stress fields. The lateral oscillations obtained are specified by two frequency bands, which correspond to different types of the characteristic equation roots. Numerical examples of free beam oscillations are presented and discussed.

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