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首页> 外文期刊>Composites: mechanics, computations, applications >NATURAL VIBRATIONS OF A COMPOSITE CYLINDRICAL SHELL WITH AN ELASTIC FILLER
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NATURAL VIBRATIONS OF A COMPOSITE CYLINDRICAL SHELL WITH AN ELASTIC FILLER

机译：具有弹性填料的复合圆柱壳的自然振动

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摘要

Variational methods were used to produce a system of motion equations for a three-layer composite cylindrical shell with orthotropic elastic bearing layers and elastic filler. The Kirchhoff-Love hypotheses are assumed for thin bearing layers; the work of stress in the filler layer, for both transverse shear strain and thickness reduction, with linear approximation of displacements in the transverse coordinate, is assumed. The displacement continuity conditions are specified for the layer contact boundaries. Radial, longitudinal, and circumferential forces of inertia are taken into account. The problem of the shell natural vibrations is stated and solved. A series of analytical solutions is presented; the dependence of the natural vibration frequencies on the filler stiffness and the shell parameters is analyzed.
机译：使用变分方法来生成具有正交各向异性弹性轴承层和弹性填料的三层复合圆柱壳的运动方程组。假设基希霍夫-洛夫（Kirchhoff-Love）假设适用于薄的承载层。假定填充层中的应力功，即横向剪切应变和厚度减小，以及横向坐标中位移的线性近似。为层接触边界指定了位移连续性条件。考虑了径向，纵向和圆周惯性力。提出并解决了壳体固有振动的问题。提出了一系列分析解决方案；分析了固有振动频率对填充物刚度和壳参数的依赖性。

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