Theoretical Research on the Absorption Characteristic of Three-Layer Microperforate Plate

Three-layer microperforated plate is researched. Acoustic impedance of the three-layer microperforated plate is attained according to the equivalent circuit, thus absorption coefficient is attained. Different microperforated plate with different porosity, different diameter, different thickness, dif...

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Bibliographic Details
Main Authors: Yang Baoguo, Zhu Congyun, Ding Guofang, Huang Qibai
Format: Conference Proceeding
Language:English
Subjects:
Absorption
absorption characteristic
Acoustics
Cavity resonators
equivalent circuit
Equivalent circuits
Impedance
Materials
microperforate plate
Resonant frequency
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Summary:Three-layer microperforated plate is researched. Acoustic impedance of the three-layer microperforated plate is attained according to the equivalent circuit, thus absorption coefficient is attained. Different microperforated plate with different porosity, different diameter, different thickness, different depth of cavity is analyzed and some conclusion is drawn to applied some theory to design these type microperforated plates.
DOI:10.1109/iCECE.2010.1089