Modeling the Elastic-Diffusion Vibrations of a Hinged Timoshenko Plate under the Action of a Distributed Surface Load

Q3 Mathematics
N. V. Grigorevskiy, A. V. Zemskov, A. V. Malashkin
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引用次数: 0

Abstract

We consider the unsteady problem of bending a homogeneous orthotropic hinged Timoshenko elastic-diffusion plate under the action of a mechanical load distributed over the surface. The initial mathematical formulation of the problem includes the system of elastic-diffusion equations for a continuum, which takes into account the finite propagation velocity of diffusion perturbations. The equations of unsteady elastic-diffusion vibrations of the plate are obtained from the equations for a continuum using the generalized principle of virtual displacements and hypotheses of Timoshenko’s theory. The solution is sought using the Laplace transform and expansion into Fourier series. The originals are found analytically using residues and tables of operational calculus.

Abstract Image

铰链式季莫申科板在分布式表面载荷作用下的弹性-扩散振动建模
摘要 我们考虑了在分布于表面的机械载荷作用下均质正交铰链季莫申科弹性扩散板弯曲的非稳态问题。问题的初始数学公式包括连续体的弹性扩散方程系统,其中考虑了扩散扰动的有限传播速度。利用虚拟位移的广义原理和季莫申科理论的假设,从连续体方程求得板的非稳态弹性扩散振动方程。利用拉普拉斯变换和傅里叶级数展开求解。利用运算微积分的残差和表格分析求得原点。
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来源期刊
Mathematical Models and Computer Simulations
Mathematical Models and Computer Simulations Mathematics-Computational Mathematics
CiteScore
1.20
自引率
0.00%
发文量
99
期刊介绍: Mathematical Models and Computer Simulations  is a journal that publishes high-quality and original articles at the forefront of development of mathematical models, numerical methods, computer-assisted studies in science and engineering with the potential for impact across the sciences, and construction of massively parallel codes for supercomputers. The problem-oriented papers are devoted to various problems including industrial mathematics, numerical simulation in multiscale and multiphysics, materials science, chemistry, economics, social, and life sciences.
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