485 research outputs found

    Effects of internal and external flow on the vibration characteristics of anisotropic cylindrical shells

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    General approach -- General theory -- Equations of motion -- The displacemnet functions -- Determination of the mass and stiffness matrices -- Elasticity matrix -- Stiffness and matrices for the whole shell in vacuo -- Free vibration -- Effects of compressible flow -- Mass, stiffness and damping matrices of the moving fluid -- Pressure fluctuations induced by internal flow -- Representation of pressure field at nodal points -- Mean sqare response -- Method of calculation and discussion

    Non-linear dynamic analysis of anisotropic cylindrical shells containing a flowing fluid

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    Basic theory -- Matrix construction : no fluid -- Analytical formulation : with fluid -- Analysis of free vibrations -- The algorithm

    Influence of geometric non-linearities on the free vibrations of anisotropic open cylindrical shells

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    Equations of motion -- Displacement functions -- Mass and linear stiffness matrices for an element -- Non-linear matrix construction -- The influence of geometric non-linearities of the walls on the natural frequencies of an open cylindrical shell

    Vibration analysis of anisotropic open cylindrical shells containing flowing fluid

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    ABSTRACT: Determination of the displacement functions -- Mass and stiffness matrices for empty finite elements -- Behaviour of the fluid-shell interaction -- Eigenvalue and eigenvector problem

    Dynamic analysis of anisotropic thin cylindrical shells subjected to boundary-layer-induced random pressure fields

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    Free vibration -- General theory -- Equations of motion -- The displacement functions -- Determination of the mass and stiffness matrices -- Elasticity matrix -- Free vibration -- Response to boundary-layer pressure field -- General theory -- Assumptions -- Representation of pressure field at nodal points -- Mean square response

    Non-linear analysis of cylindrical shells

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    Basic theory and method -- Equations of motion for anisotropic cylindrial shells -- Linear matrix construction -- Non-linear matrix construction -- The influence of geometric non-linearities of the walls on the natural frequencies of a cylindrical shell -- The algorithm

    Analysis of anisotropic thin conical shells

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    Équations of motion for anisotropic conical shells -- Solution for arbitrary edge loading -- Boundary conditions
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