摘要
利用矩阵方法,本文提出了声波遇到两半无限固体间多层媒质的反射和透射理论模型,导得了纵波或横波从半无限固体入射时的反射系数和透射系数简洁表达式,所提出模型中的半无限固体之一(或两者)也可由流体替代。中间各层固体可以是各向同性的,也可以是晶轴按一定方向排列的正交和六角对称的各向异性固体。本文给出了铝合金粘接件和含矿地层声反射系数的数值计算结果。最后,我们列举了有关多层媒质声反射和声透射值得进一步探讨的问题。
By using matrix method this paper has proposed a theoretical model for acoustic wave reflection and transmission on multilayered media and derived rather brief formulas for reflection and transmission coefficients of longitudinal or transverse waves which become incident from a semispace solid. In this model the semispace solids can by replaced by fluids and the solid layers can be either isotropic or anisotropic media with certain orientation of the symmetrical axes. Numerical computations of acoustic reflection coefficients are given for aluminum alloy adhesive joints and metal layer embedded in rock. Some problmes worthy of further study are discussed.
出处
《南京大学学报（自然科学版）》
CAS
CSCD
1993年第1期49-62,共14页
Journal of Nanjing University（Natural Science）
关键词
声波
反射
透射
多层介质
固体介质
acoustic reflection and transmission
multilayered composite solid
