A Perforated Plate with Stepwise Apertures for Low Frequency Sound Absorption

A Perforated Plate with Stepwise Apertures for Low Frequency Sound Absorption

A perforated plate with stepwise apertures (PPSA) is proposed to improve sound absorption for low frequencies. In contrast with an ordinary perforated plate with insufficient acoustic resistance and small acoustic mass, the perforated plate with stepped holes could match the acoustic resistance of a...

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Bibliographic Details
Main Authors: Xin Li, Bilong Liu, Chong Qin
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Applied Sciences
Subjects:
perforated plate
stepwise apertures
sound absorption
low frequency
Online Access:https://www.mdpi.com/2076-3417/11/13/6180

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