Mechanics shape function of quadrilateral element composed of subdivision triangles for recursive transfer method
Mechanics shape function of quadrilateral element composed of subdivision triangles for recursive transfer method
复制标题
递归传递法细分三角形四边形单元的力学形函数
DOI：
10.1007/s13160-017-0281-9
复制
发表时间：
2017
影响因子：
0.9
通讯作者：
Naito Yoshimasa
中科院分区：
文献类型：
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作者：
Kato Hatsuhiro;Kato Hatsuyoshi;Naito Yoshimasa
递归传递法（RTM）提供了一个独特的数值方法提取一个局部波的散射问题。然而，各种形状的散射体迄今难以适应RTM，因为网格单元限于矩形。在这项研究中，我们提出了我们所谓的力学形状函数使用细分三角形的四边形单元，我们扩展RTM适用于各种形状的散射体。力学形状函数的影响是使用一个均匀的波导与扭曲的网格进行评估。
The recursive transfer method (RTM) provides a unique numerical means of extracting a localised wave in a scattering problem. However, various shapes of scatterers were hitherto difficult to adapt RTM, because mesh elements were limited to rectangles. In this study, we propose what we call mechanics shape function using subdivision triangles of a quadrilateral element, and we extend RTM to be valid for various shapes of scatterers. The effect of the mechanics shape function is evaluated using a uniform waveguide with a distorted mesh.