共查询到20条相似文献,搜索用时 15 毫秒
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The free vibrations of shallow doubly curved orthotropic shells with rectangular planform and varying thickness is solved
using a refined formulation and the spline-approximation method. Various boundary conditions are considered. The effect of
the curvature of the mid-surface on the spectrum of natural frequencies is examined. The natural frequencies and modes of
orthotropic shells of constant and varying thickness are compared and analyzed 相似文献
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王慎行 《应用数学和力学(英文版)》1989,10(8):767-784
The purpose of this paper is to give the general solutions for axisymmetric cylindrical shells with parabolically varying wall thickness. 相似文献
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A method is proposed for the numerical analysis of the thermoelastoplastic stress-strain state of laminated shells of revolution, made of isotropic and orthotropic materials, under axisymmetric loading. The method is based on the Kirchhoff-Love hypotheses for a layer stack, the theory of deformation along paths of small curvature for isotropic materials, and Hills theory of flow with isotropic hardening for orthotropic materials. The problem is solved by the method of successive approximations. A numerical example is given.__________Translated from Prikladnaya Mekhanika, Vol. 40, No. 12, pp. 84–91, December 2004. 相似文献
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An approach to the solution of problems of the statics of shallow orthotropic shells is proposed. It is based on reducing
a two-dimensional boundary value problem to a one-dimensional one using the spline-collocation method and solution of the
problem by the stable numerical method of discrete orthogonalization. Solutions are presented for problems on the stress state
of orthotropic shells of double curvature for several values of the elastic constants of the material.
Translated from Prikladnaya Mekhanika, Vol. 36, No. 7, pp. 60–66, July, 2000. 相似文献
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Institute of Mechanics, Academy of Sciences of the Ukrainian SSR, Kiev. Institute of Computational Mathematics. Academy of Sciences of the Georgian SSR, Tbilisi. Translated from Prikladnaya Mekhanika, Vol. 25, No. 8, pp. 44–52, August, 1989. 相似文献