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復(fù)合穿孔板吸聲結(jié)構(gòu)的聲學(xué)特性分析與應(yīng)用
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    摘要:

    對(duì)帶有吸聲材料的復(fù)合穿孔板吸聲結(jié)構(gòu)的聲學(xué)特性進(jìn)行了研究與計(jì)算，比較了吸聲材料緊貼穿孔板和吸聲材料緊貼剛性壁時(shí)吸聲結(jié)構(gòu)的吸聲性能，分析了吸聲結(jié)構(gòu)的參數(shù)對(duì)吸聲性能的影響，為穿孔板吸聲結(jié)構(gòu)的工程應(yīng)用提供了參考依據(jù)。將復(fù)合穿孔板吸聲結(jié)構(gòu)應(yīng)用到工程實(shí)際中,，取得了良好的降噪效果。

    Abstract:

    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. 

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周晉花,左言言,李占成,史文獻(xiàn).復(fù)合穿孔板吸聲結(jié)構(gòu)的聲學(xué)特性分析與應(yīng)用[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2007,38(12):156-159.[J]. Transactions of the Chinese Society for Agricultural Machinery,2007,38(12):156-159.

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