Asymptotic solutions of non-classical boundary-value problems of the natural vibrations of orthotropic shells

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Agalovyan, L.A.
Gulgazaryan, L.G.
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Journal of Applied Mathematics and Mechanics | 2006年 / 70卷 / 01期
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The natural vibrations of orthotropic shells are considered in a three-dimensional formulation for different versions of the boundary conditions on the faces: rigid clamping rigid clamping; rigid clamping free surface; and mixed conditions. Asymptotic solutions of the corresponding dynamic equations of the three-dimensional problem of the theory of elasticity are obtained. The principal values of the frequencies of natural vibrations are determined. It is shown that three types of natural vibrations occur in the shell: two shear vibrations and a longitudinal vibration; which are due solely to the boundary conditions on the faces. It is proved that each boundary layer has its own natural frequency. The boundary-layer functions are determined and the rates at which they decrease with distance from the faces inside the shell are established. © 2006 Elsevier Ltd. All rights reserved;
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页码：102 / 115
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