多孔吸声材料在高速船舱室噪声控制中的应用

Application of porous sound-absorbing material on high cabin noise control

应用VA One软件对不同层数、由不同厚度与密度吸声材料组成的复合吸声材料进行研究,得到重量相对较轻、吸声性能较佳的复合吸声材料。根据子系统对舱室声腔能量贡献大小的不同,应用上述3种复合吸声材料对高速船中对噪声水平要求较高的舱室进行噪声控制处理,取得良好的吸声效果。

This paper briefly introduces the properties of porous sound-absorbing material and the general methods of ship noise control treatment, conducting a research on the composited material which consist of different layers, thickness and density of Sound-absorbing material by VA One software, and get several relatively light materials with better sound absorption properties. According to the energy contribution of the different subsystem, three composite sound absorption materials is applied on the high speed craft and proved to be effective.