三聚氰胺泡沫吸声特性分析

Analysis of Sound Absorption Characteristics of Melamine Foam

本文通过拍摄三聚氰胺泡沫的扫描电镜图,建立了反映微观结构特征的简化的周期性单元模型,使用建立的模型通过多物理场数值模拟的方法获取了三聚氰胺泡沫吸声系数。两种厚度三聚氰胺泡沫的吸声系数的数值模拟值与实测值高度吻合,证明了数值模拟结果的高准确度,为通过微观结构设计实现吸声目的打下基础。

In this paper, a simplified periodic unit model reflecting the microstructure characteristics of melamine foam was established by the scanning electron microscopy. The sound absorption coefficient of melamine foam with two thicknesses was obtained by multi-physical field numerical simulation, which are highly consistent with the measured values. It proved the high accuracy of the numerical simulation results and lays a foundation for realizing sound absorption through microstructure design.