Modeling method of closed-cell foam wave-absorbing material

Abstract

The invention discloses a modeling method of a closed-cell foam wave-absorbing material in the technical field of closed-cell foam wave-absorbing materials. The modeling method comprises the followingsteps: S1, analyzing and arranging base points for generating a Voronoi diagram, and calculating a total base point number value according to the cell body number of each layer of the established model, the layer number of each coordinate direction and the arrangement point number of each coordinate direction; S2, arranging the seeds by Matlab, and forming a Voronoi graph through Matlab softwareaccording to the base points generated in the S1; S3, generating a regular tetradecahedron Voronoi graph through Rhino, and calling the coordinates of the base points generated through Matlab, and correspondingly generating a regular tetradecahedron Voronoi graph through Rhino. According to the method, the geometric model of the foam material tetradecahedron microstructure is established by utilizing a method of combining Matlab and Rhino software, wherein the Matlab language is simple, and the generation of base point coordinates for forming the Vonoroi graph is easy to realize; rhino software is rich in drawing function, and under the condition that base point coordinates are given, the process of drawing the three-dimensional Vonoroi is simple and easy to implement.

Description

technical field [0001] The invention relates to the technical field of closed-cell foam absorbing materials, in particular to a modeling method for closed-cell foam absorbing materials. Background technique [0002] Porous materials have the characteristics of relatively light weight, large specific surface area, good damping performance, etc., and have both functions and structures, and have become an excellent new functional structural material. Studies have shown that the porous structure helps absorbing materials to absorb electromagnetic waves. The research on the mesoscopic model of foam materials is often used in the analysis of mechanical properties of materials. The foam mesoscopic models for the study of mechanical properties include Gibson-Ashby model, Kelvin model and octahedron model. Many domestic scientists have studied the model of foam materials. For a long time, the tetradecahedron proposed by Kelvin has been considered as the surface area per unit volume...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for modeling closed-cell foam absorbing materials, so as to solve the problem that the existing closed-cell foam absorbing materials proposed in the background technology are very complicated and cumbersome in the process of modeling. Moreover, it is not convenient to quickly realize the establishment of the model based on the coordinates of the base point

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