机构地区: 华南理工大学理学院
出 处: 《华南理工大学学报(自然科学版)》 2007年第10期214-220,共7页
摘 要: 基于光栅结构的计算方法,发展了一个本征模式匹配理论用以研究和计算经典波在周期结构媒质中的传播行为,这个新的处理人工周期结构的计算方法已被用于固体/固体、液体/液体、空气/刚体等类型的声子晶体研究中,同时它也被成功地扩展至研究具有拓扑结构底部的液体表面波的频带结构及透射性质.笔者的研究结果显示了该理论方法的高效性. Based on the calculation method of grating structure, the authors have developed an eigen-mode matching theory to study the propagation of classic waves in periodic systems. The proposed method has been applied to the investigations of phononic crystals With solid/solid, liquid/liquid and air/rigid body types, and has been expanded to the investigation of frequency-band structure and transmission properties of liquid surface wave with topology bottom. The effectiveness of the proposed theory is verified bv numerical results.