一种应用于电梯井的复合吸声结构及其吸声参数研究

曲婷, 闵鹤群

Parameter study on a composite sound⁃absorbing structure lined on elevator shafts

Ting Qu, Hequn Min

图3 多孔吸声材料的(a)流阻、(b)孔隙率和(c)结构因子对复合吸声结构的吸声系数的影响

Fig.3 The impact of flow resistance (a)，porous rates (b)，and structure factor of porous material on sound absorption coefficient of composite structure (c)