Low Frequency Sound Absorption by Optimal Combination Structure of Porous Metal and Microperforated Panel

Low Frequency Sound Absorption by Optimal Combination Structure of Porous Metal and Microperforated Panel

The combination structure of a porous metal and microperforated panel was optimized to develop a low frequency sound absorber. Theoretical models were constructed by the transfer matrix method based on the Johnson—Champoux—Allard model and Maa’s theory. Parameter optimi...

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Bibliographic Details
Main Authors: Xinmin Shen, Panfeng Bai, Xiaocui Yang, Xiaonan Zhang, Sandy To
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Applied Sciences
Subjects:
low frequency sound absorption
combination structure
porous metal
microperforated panel
parameter optimization
finite element simulation
experimental validation
Online Access:https://www.mdpi.com/2076-3417/9/7/1507

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