Resonance Effect of Nanofibrous Layer on Sound Absorption

摘要

This paper deals with the acoustic behavior of a flexible porous material with resonant nanofibrous layer. The resonance effect of nanofibrous layer has been studied. The material formed from nanofibrous layer has been evaluated in comparison with the nanofibrous layer damped by porous nonwovens. Both materials are located in different distance from the wall. The resonance frequency is given by nanofibrous layer characteristics. The sound absorption coefficient increases with the distance of resonant layers from the wall and porous material using.