Discrete Flow Mapping in coupled two and three dimensional domains: a global interface problem
Discrete Flow Mapping in coupled two and three dimensional domains: a global interface problem
复制标题
耦合二维和三维域中的离散流映射：全局界面问题
DOI：
10.1088/1742-6596/744/1/012097
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Bajars J
中科院分区：
文献类型：
--
作者：
Bajars J
离散流映射（DFM）是最近引入的一种基于网格的高频方法，用于模拟由二维壳和板子系统组成的复杂结构中的结构声。该方法现已扩展到三维网格结构建模，提供了更广泛的适用性，也自然导致如何耦合的二维和三维子结构的问题。我们认为这个问题的情况下，一个三维的内部流体域，封闭的二维壳/板系统。在离散流映射中，子结构之间的振动能量的传输通常通过局部界面处理来描述，其中采用波动理论来生成反射/透射和模式耦合系数。在我们的例子中，整个二维子结构形成了一个整体界面，其辐射特性将取决于几何形状和频率。在本文中，我们将讨论如何制定这样一个模型，包括结构辐射和结构上的流体压力的后加载。
Discrete Flow Mapping (DFM) was recently introduced as a mesh-based high frequency method for modelling structure-borne sound in complex structures comprised of two-dimensional shell and plate subsystems. The method has now been extended to model three-dimensional meshed structures, giving a wider range of applicability and also naturally leading to the question of how to couple the two-and three-dimensional substructures. We consider this problem for the case of a three dimensional interior fluid domain, enclosed by a two dimensional shell/plate system. In Discrete Flow Mapping, the transport of vibrational energy between substructures is typically described via a local interface treatment where wave theory is employed to generate reflection/transmission and mode coupling coefficients. In our case the entire two-dimensional substructure forms a global interface whose radiating properties will depend on both the geometry and the frequency. In this paper we discuss how such a model may be formulated, including both structural radiation and the back-loading of the fluid pressure on the structure.
DOI：
10.1088/1751-8113/40/50/r01
发表时间：
2007-11
期刊：
Journal of Physics A: Mathematical and Theoretical
影响因子：
--
作者：
G. Tanner;N. Søndergaard
通讯作者：
G. Tanner;N. Søndergaard
影响因子：
2.4
作者：
Chappell, D. J.;Loechel, D.;Tanner, G.
通讯作者：
Tanner, G.