噪声与振动控制Issue(1)：45-50,6.DOI:10.3969/j.issn.1006-1335.2013.01.010
传递矩阵法分析复合材料层合板的传声损失
Analysis of Sound Transmission Loss of Laminate Composite Plate Using Transfer Matrix Method
摘要
Abstract
The sound transmission loss formula of orthotropic composite laminate plates was introduced for different frequencies on the basis of transfer matrix method. An audio computation model of composite laminates was established, influence of some structural parameters such as laminate lay-out angle, plate thickness and density on transmission loss of the laminated plate was analyzed. The results show that there is no obvious linear relationship between density of composite laminates and sound transmission loss. The sound transmission loss increases with frequency increasing and the total thickness of the composite laminates increasing. Even the different thickness and lay-out angle of each laminate can cause the change of the sound transmission loss. With the use of the transfer matrix method, the effect of laying method, lay-out angle and some other factors of the composite laminates can be fully considered. Using the continuity condition of speed and stress in the interface of the laminates, the sound insulation property of the composite laminate plates can be accurately calculated.关键词
声学/传声损失/层合板/正交异性/传递矩阵Key words
acoustics/sound transmission loss/laminates/orthotropic/transfer matrix分类
建筑与水利引用本文复制引用
万翾,吴锦武..传递矩阵法分析复合材料层合板的传声损失[J].噪声与振动控制,2013,(1):45-50,6.基金项目
航空科学基金资助项目(2011ZA56002)资助 （2011ZA56002）
