...
首页> 外文期刊>Acta acustica united with acustica >Acoustic absorption of multi-layer structure composed of porous layers based on Biot's Model and transfer matrix method
【24h】

Acoustic absorption of multi-layer structure composed of porous layers based on Biot's Model and transfer matrix method

机译:基于Biot模型和传递矩阵法的多孔层多层结构的声吸收

获取原文
获取原文并翻译 | 示例
           

摘要

This article presents an approach of modelling the surface impedance and absorption coefficient of multi-layer structure composed of porous materials placed against a rigid wall. The Biot's model is used to calculate the complex wave numbers of the two compressional waves propagating in porous materials at normal incidence and the surface impedances of multi-layer structures are predicted by the transfer matrix method (TMM). The resonance effects of structures composed of three layers of different porous materials are studied and the arrangement of each layer and the influence of their thicknesses are also discussed.
机译:本文提出了一种对多层结构的表面阻抗和吸收系数进行建模的方法,该多层结构由放置在刚性壁上的多孔材料组成。利用毕奥模型计算法向入射在多孔材料中传播的两个压缩波的复波数,并通过传递矩阵法(TMM)预测多层结构的表面阻抗。研究了由三层不同的多孔材料组成的结构的共振效应,并讨论了每一层的排列及其厚度的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号