材料科学
金属泡沫
宽带
复合数
铝
吸收(声学)
复合材料
声音(地理)
声学
光学
物理
作者
Jin Chen,Sihan Li,Gang Ning,Lisi Liang,Lixing Zhang,Zhongyi Cui,Zeming Wang,Zhuyue Zhang
标识
DOI:10.1002/adem.202402205
摘要
A composite structure (L‐LDMPP) consisting of localized aluminum foam, a localized microperforated plate (MPP), and a double‐layer MPP is proposed to enhance sound absorption. A simulation model using COMSOL is developed to predict the sound absorption coefficient and investigate the acoustic benefits of localized aluminum foam and localized MPP. A comparative analysis is performed to evaluate the sound absorption performance of four configurations: L‐SMPP (localized aluminum foam with a single‐layer MPP), L‐DMPP (localized aluminum foam with a double‐layer MPP), L‐LSMPP (localized aluminum foam with a localized MPP and a single‐layer MPP), and L‐LDMPP (localized aluminum foam with a localized MPP and a double‐layer MPP). The model's accuracy is validated against experimental data. Results show that localized aluminum foam, localized MPP, and double‐layer MPP optimize acoustic impedance matching. The sound absorption characteristics of L‐LDMPP are divided into two domains: the resonance acoustic domain, influenced by the double‐layer MPP structure behind the localized aluminum foam, and the coupled acoustic domain, influenced by both the localized aluminum foam and localized MPP.
科研通智能强力驱动
Strongly Powered by AbleSci AI