Design of phononic crystal for enhancing low-frequency sound absorption in mufflers

Design of phononic crystal for enhancing low-frequency sound absorption in mufflers

Abstract To enhance the low-frequency sound absorption capabilities of expansion chamber mufflers, a novel Helmholtz-ring phononic crystal cell was developed. This innovative design integrates ring Helmholtz resonators as the phononic crystal scatterer, which is periodically arranged within the expa...

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Bibliographic Details
Main Authors: Yang Bai, Yuehua Chen, Jiahui Zheng
Format: Article
Language:English
Published: Nature Portfolio 2024-11-01
Series:Scientific Reports
Subjects:
Phononic crystal muffler
Defect state analysis
Local resonance
Transmission loss
Pressure loss
Online Access:https://doi.org/10.1038/s41598-024-79762-9

Internet

https://doi.org/10.1038/s41598-024-79762-9

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