空气耦合层状复合材料的声传播研究  

THE STUDY OF WAVE PROPAGATION IN THE AIR-COUPLED COMPOSITE LAMINATE

作　　者：刘磊[1] 杨扬[1] 潘永东[1] 仲政[1] 

机构地区：[1]同济大学航空航天与力学学报,上海200092

出　　处：《固体力学学报》2014年第1期8-14,共7页Chinese Journal of Solid Mechanics

基　　金：国家自然科学基金项目(10834009,11090333);中央高校基本科研业务费专项资金同济大学(0270219037)资助

摘　　要：论文研究了空气耦合层状复合材料的声传播.从基本波动方程出发,由气固边界条件,利用势函数法求解声波任意角入射层状复合材料的声传播,并通过数值计算得到其透声系数幅度和相位随频率变化的规律.基于MATLAB建立了测量任一入射角透声系数的实验平台,并对复合材料试样进行了实验,得到的透声系数幅度与理论计算结果吻合,说明了所建立的声传播理论和实验检测方法的有效性.In this paper, the wave propagation in the air coupled composite laminate is studied. The variations of the amplitude and phase of the transmission coefficient with frequency under any incident an gle were solved and calculated by the potential function method for the fundamental wave equation with the air solid boundary condition. Based on MATI.AB,a experimental platform was established to measure the transmission coefficient at any incident angle and the transmission coefficients of composite samples were measured,showing good agreement with those of theoretical calculations.

关 键 词：空气耦合 层状复合材料 势函数 透射系数 

分 类 号：V250.2[一般工业技术—材料科学与工程]