复合穿孔板吸声结构的声学特性分析与应用

Discussion on Mechanism and Application in Perforated Panel Absorber of Compound

对带有吸声材料的复合穿孔板吸声结构的声学特性进行了研究与计算,比较了吸声材料紧贴穿孔板和吸声材料紧贴刚性壁时吸声结构的吸声性能,分析了吸声结构的参数对吸声性能的影响,为穿孔板吸声结构的工程应用提供了参考依据。将复合穿孔板吸声结构应用到工程实际中,取得了良好的降噪效果。

Theoretical study and calculation on the acoustic properties of perforated panel absorber with absorbing material was elucidated. Comparison in absorption characteristics of absorbing structure between the perforate panel closely pasted with the absorbing materials and the sound absorbing structure of the inner wall of cavity closely pasted with the absorbing materials was made. The effect of sound absorbing structure parameters on absorption characteristics was analyzed. All these provided a reference for the application of perforated panel absorber in noise control engineering. Compound perforated panel absorber was applied into engineering and the satisfactory result has been acquired.