瑞利波频散曲线与介质层厚度的关系研究  

Research on the relation between dispersion curves of Rayleigh wave and the thickness of media layer

作　　者：唐军杰[1] 

机构地区：[1]中国石油大学理学院,北京102249

出　　处：《黑龙江大学自然科学学报》2013年第2期251-253,258,共4页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(60778034);中国石油大学(北京)基本科研基金资助项目(2012)

摘　　要：给出了各向同性层状介质模型瑞利面波的频散曲线方程。在该频散曲线方程的基础上,以波速递增条件下的层状介质为例进行模拟计算,其模拟结果反映出了瑞利波频散曲线与层厚之间的关系。同时表明第一层介质厚度的变化对曲线的影响较为明显,曲线的低频部分受介质层厚度变化的影响大,随厚度的增加,其频散性增强。An equation of Rayleigh wave dispersion curves of the model of the isotropic media layer is given. The simulate computation results, that wave velocity increasing layered medium as an example, based on the equation of Rayleigh, reflect the relation of the Rayleigh wave dispersion curves and the layer thickness. Meanwhile, the results show that the curves are obvious by the effect of thickness change in the first layer, and the low-frequency por- tion of the curve is affected by the thickness change of the layer. The more thickness of media layer, the more stronger of the dispersion of the curve.

关 键 词：瑞利波 频散 导波 层状介质 

分 类 号：O348.8[理学—固体力学]