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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >The scattering waves from an object in an elastic-fluid layered structure
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The scattering waves from an object in an elastic-fluid layered structure

机译:来自弹性流体层状结构中的物体的散射波

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In this work, we have investigated the scattered elastic waves from an object in a system consisting of an elastic layer above a fluid half-space. A time-harmonic load is applied upon the upper boundary surface, while the object is free of stresses. By constructing the corresponding Green's functions, a coupled system of boundary integral equations (BIE) over the contour of the object is formulated. The scattered waves are obtained by using the collocation technique which reduced the BIE to a system of linear algebraic equations. The results are compared with the case without the fluid to show the influence of the fluid pressure on the scattered waves. Numerical examples are carried to demonstrate the scattered waves from an object in different geometrical shapes.
机译:在这项工作中,我们已经研究了由在流体半空间上方的弹性层组成的系统中的散射弹性波。 在上边界表面上施加时谐波载荷,而物体没有应力。 通过构造相应的绿色功能,制定了对象的轮廓上的边界积分方程(BIE)的耦合系统。 通过使用将BIE减小到线性代数方程系统的搭配技术获得散射波。 将结果与没有流体的情况进行比较,以显示流体压力对散射波的影响。 承载数值示例以展示来自不同几何形状的物体的散射波。

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