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) and compression performance of the sound-insulating material with combined cone cavities. The effectiveness of 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.

中文翻译：

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混合尺寸混合腔体隔声材料的数值设计

针对目前单个腔体的低频隔声性能和耐压性较差的问题，利用有限元软件COMSOL建立了分析模型，计算了隔声材料的传声损失和压缩性能。结合锥形腔。通过与实验结果进行比较，验证了数值方法的有效性，并研究了锥孔的结构参数，孔眼和混合孔的形状对传声损失的影响。