Numerical Design of Sound-Insulating Material with Combined Cavities of Mixed Sizes

Numerical Design of Sound-Insulating Material with Combined Cavities of Mixed Sizes

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In view of the low-frequency acoustic insulation performance and poor pressure resistance of a single cavity at present, finite element software COMSOL is used to establish an analysis model to calculate the sound transmission loss (TL) satisfyer pro penguin next generation and compression performance of the sound-insulating material with combined cone cavities.The effectiveness of vegas golden knights background the numerical method is validated by comparing with the experimental results, and influence of the structural parameters of the cone cavity, the perforation, and the mixed cavity shape on the sound transmission loss is investigated.