液态饱和多孔粘弹性半空间的弹性波反射  

Elastic wave reflection in viscoelastic half-space of saturated porous liquid state

作　　者：吴桐 李立[1] 马腾宇[1] 吴楠 WU Tong;LI Li;MA Teng-yu;WU Nan(College of Science,Qiqihar University,Heilongjiang Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学理学院,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2024年第4期86-90,共5页Journal of Qiqihar University(Natural Science Edition)

基　　金：国家自然基金(42371113);齐齐哈尔大学研究生创新科研项目(QUZLTS_CX2023029);黑龙江省省属高等学校基本科研业务费项目(145209410)。

摘　　要：针对液态饱和多孔粘弹性半空间中弹性波的传播特性问题,基于多孔介质理论和粘弹性介质理论模型以及喷射流效应,研究平面P波在饱和多孔粘弹性介质边界上的反射问题。首先,考虑固-液耦合的饱和多孔粘弹性介质的本构方程和控制方程。其次,引入势函数和可渗透的边界条件。最后,经过理论推导出在饱和多孔粘弹性介质边界上喷射流效应以及入射角对反射系数的影响。The propagation characteristics of elastic waves in viscoelastic half-space with saturated porous fluid are studied.Based on the theories of porous media and viscoelastic media,as well as the jet flow effect,study the reflection problem of planar P-waves on the boundary of saturated porous viscoelastic media.Firstly,consider the constitutive equation and control equation of a saturated porous viscoelastic medium with solid-liquid coupling.Secondly,potential functions and permeable boundary conditions are introduced.Finally,through theoretical derivation,the jet flow effect on the boundary of saturated porous viscoelastic media and the influence of incident angle on the reflection coefficient are given.

关 键 词：液态饱和 多孔粘弹性材料 喷射流效应 弹性波 反射系数 

分 类 号：O631[理学—高分子化学]