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首页> 外文期刊>Acta Mechanica >Thermoelastic dynamic solution of a multilayered spherically isotropic hollow sphere for spherically symmetric problems
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Thermoelastic dynamic solution of a multilayered spherically isotropic hollow sphere for spherically symmetric problems

机译:球面各向同性问题的多层球面各向同性空心球的热弹性动力解

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The thermoelastic dynamic solution of a multilayered spherically isotropic hollow sphere in the state of spherical symmetry is obtained. By the method of superposition, the displacement is divided into two parts: one is quasi-static and the other is dynamic. The quasi-static solution is first derived in an explicit form by using the transfer matrix method. Then by introducing a new dependent variable, the governing equations, boundary conditions as well as the initial conditions for the dynamic solution are rewritten, and the dynamic solution is obtained by the separation of variables method coupled with the initial parameter method as well as the orthogonal expansion technique. The present method is suitable for a multilayered spherically isotropic hollow sphere consisting of arbitrary layers and subjected to arbitrary spherically symmetric thermal loads. Numerical results are finally presented and discussed.
机译:得到了球状各向同性空心多层球体在球对称状态下的热弹性动力解。用叠加法将位移分为两部分:一个是准静态的,另一个是动态的。首先使用传递矩阵方法以显式形式导出准静态解。然后通过引入一个新的因变量,重写动力学方程的控制方程,边界条件和初始条件,并通过变量分离方法与初始参数方法以及正交方法相结合来获得动态解。扩展技术。本方法适用于由任意层组成并经受任意球对称热负荷的多层球形各向同性空心球。最后给出并讨论了数值结果。

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