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In this paper, on the base of paraxial approximations, we present a set of absorbing boundary conditions of 3D elastic wave equations and apply to the 3D elastic wave numerical modeling in isotropic medium. 本文傍轴近似法提出了计算三维弹性波方程的吸收边界条件公式，表示了各边界面、边棱和角点处波场所满足的单程波方程，并在三维弹性波数值模拟中进行了应用。
We introduce perfectly matched layer to attenuate the refection of the artificial boundary, and construct boundary and corner point conditions of elastic wave equations in isotropy media. 为了消除边界反射，引入最佳匹配层，构造了各向同性介质中弹性波方程在不同边界和角点处的边界条件。
Weak reflection and weak conversion makethe elastic wave equations be applicable to the elastic-wave reverse time recursionimage problem where interbed reverberation must be suppressed thoroughly. 由于这些方程的弱反射、弱转换特性，使它们特别适用于需要压制层间混响的弹性波道时递推成像一类的工程。
In this paper, using FEM method to numerical simulate the elastic wave equation. 本文采用有限元法进行弹性波方程数值模拟。
In this study, we applied the reversibility of elastic wave to a discussion of the reverse time propagation of wave equation. 摘要本文应用波动方程式的可逆性讨论弹性波的逆时影像重建。
By way of adopting elastic wave equation and finite difference approximation calculating method, the numerical simulation of VSP synthetic record is realized in the paper. 本文采用弹性波方程，通过有限差分近似计算，实现了VSP合成记录的数值模拟。
The study puts forward the precision difference solution to elastic wave equation, using staggered mesh random even rank, and formula for tilted contact surface's refraction blind zones. 研究提出了弹性波方程交错网格任意偶数阶精度差分解法及倾斜界面地表折射盲区计算公式。
The study puts forward the accurate difference method for elastic wave equation, using staggered mesh random even order, and formula for tilted contact surface's refraction blind zones. 在朋友帮助下,问题已解决!研究提出了弹性波方程交错网格任意偶数阶精度差分解法及倾斜界面地表折射盲区计算公式。
second-order elastic wave equation 二阶波动方程
The method of finite difference of high precision elastic wave equations in the frequency domain and wave-field simulation 高精度频率域弹性波方程有限差分方法及波场模拟
the flux\|corrected transport (FCT) method, commonly used in hydrodynamics for conservative equations, can then be used in solving elastic wave equations of TI media; 采用流体力学中守恒式方程的通量校正传输方法来压制波场模拟中的数值频散；
elastic wave equations 弹性波方程
In this paper, the pseudo-spectral method by the wave equations of inhomogeneous elastic isotropic media is developed and the stable conditions for it are given. 从非均匀弹性各向同性介质中的波动方程出发，研究发展了伪谱法数值模拟方法，并给出了稳定性条件。
SIMULATION OF PML ABSORBING BOUNDARY CONDITION WITH SECOND-ORDER ELASTIC WAVE EQUATION IN ANISOTROPIC MEDIA 各向异性介质中二阶弹性波方程模拟PML吸收边界条件
THE REVERSE-TIME MIGRATION OF ELASTIC WAVE EQUATION AND ITS IMAGING CONDITIONIN TRANSVERSE ISOTROPIC MEDIA 横向各向同性介质中的弹性波方程逆时偏移及其成像条件
FINITE ELEMENT METHOD OF THE ELASTIC WAVE EQUATION AND WAVEFIELD SIMULATION IN TWO-PHASE ANISOTROPIC MEDIA 双相各向异性介质中弹性波方程的有限元解法及波场模拟
INVERSION OF TWO-DIMENSIONAL ELASTIC WAVE EQUATION WITH TWO VARIABLES WITHIN BORN APPROXIMATION Born近似二维弹性波方程的双参数反演
Keywords: concrete, crack, defect, elastic waves, imaging. 关键词：混凝土、裂缝、缺陷、弹性波、影像法。
In this paper, a combining exploration of theboth waves is analysed numerically by using finite-clement technique in solution of equations for elastic waves. 本文利用弹性波动方程有限元数值解技术,从数值模拟的角度研究了纵波(P)、转换波(SV)的联合勘探问题。
Keywords absorptive boundary condition;numerical modeling;elastic wave equation;grid;wave field; 吸收边界条件;数值模拟;弹性波方程;网格;波场;