噪声与振动控制Issue(5)：110-113,4.DOI:10.3969/j.issn.1006-1335.2014.05.025
薄膜材料吸声性能数值模拟
Numerical Simulation of Sound-absorbing Property of Membrane Materials
摘要
Abstract
The sound absorption abilities of single-layer and double-layer membranes with or without air-back cavity are studied by using numerical simulation. Results show that the resonance frequency shifts toward the low frequency region with the increasing of the mass density of the membrane materials and the depth of the air-back cavity when the other parameters keep invariant. The sound absorption bandwidth of the double-layer membrane structure is wider than that of the single-layer structure. The sound absorption coefficient of the double-layer membrane without air-back cavity remains unchanged when the frequency is below a certain value.关键词
声学/薄膜吸声材料/吸声系数/共振频率/吸声带宽Key words
acoustics/membrane sound-absorbing material/sound absorption coefficient/resonance frequency/sound absorption bandwidth引用本文复制引用
盖晓玲,李贤徽,张斌,谢鹏,马智慧..薄膜材料吸声性能数值模拟[J].噪声与振动控制,2014,(5):110-113,4.基金项目
国家自然科学基金项目(11274048，11102093)、北京市自然科学基金（8142016）和2014年北京市科学技术研究院创新工程项目 （11274048，11102093）
