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- polrized elastic wave 极化弹性波
- 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。
- The finite element method was used to calculate elastic wave propagation in the medium. 本文采用有限元素法计算弹性波在介质中的传播。
- The computerized tomography(CT) of elastic wave is a forward problem in the geophysical domain for more than ten years. 弹性波计算机层析成像(CT)技术是十多年来地球物理领域里的一个前沿热门课题。
- Hardin B O, Richare F E. Elastic wave velocities in granular soils[J]. Divi. Proc. of ASCE, 1963,89[SM1]:3-65. 李新.;用超声波法测定三轴仪内非饱和砂土试件动剪切模量初探[A]
- Keywords: concrete, crack, defect, elastic waves, imaging. 关键词:混凝土、裂缝、缺陷、弹性波、影像法。
- By using the propagating theory of elastic wave the attenuation mechanisms of the elastomer with cylindrical bores is analyzed. 摘要应用弹性波在带圆柱通道橡胶体内传播的理论,分析了穿孔橡胶体的吸声机理。
- The thin-layer method(TLM) is a semi-analytical and semi-numerical approach for the analysis of elastic wave propagation in stratified media. 薄层法是分析和模拟弹性波在层状介质中传播的一种半解析半数值方法。
- The elastic wave parameters characteristics of Datong jurassic coal rock bed are analyzed.It will guide the channel wave seismic exploration in future. 对大同侏罗纪煤田的煤岩层弹性波特征参数进行分析,以便指导今后槽波地震探测工作。
- The thin layer method(TLM) is a semi-analytical and semi-numerical approach for the analysis of elastic wave propagation in stratified media. 薄层法是分析和模拟弹性波在层状介质中传播的一种半解析半数值方法。
- The scattering problem of elastic wave by arbitrarily shaped cavities in an infinite anisotropic medium is investigated by the boundary intcgral equation (BIE) method. 本文借助于广义格林公式导出了用位移表示的各向异性介质中SH波入射时的边界积分方程.
- To test the absorbing ability, the reflection coefficient formulas on the absorbing boundaries are derived based on the potential functions theory of elastic wave. 为检验其吸收能力,利用弹性波的势函数理论导出了P波和S波在吸收边界处的反射系数公式。
- We propose a domain decomposition method based on combining the finite element method with the finite difference method for numerical simulation elastic wave propagation. 摘要本文针对弹性波波场传播的数学模型,提出了一种基于有限元和有限差分耦合的区域分裂方法。
- The influenes of triaxial stress states on the elastic wave velocities of clayey sandstone,and claystone and hard siliceous sandstone have been determined by experiments. 岩石所受的三向应力状态对其弹性波传播性质有一定的影响,此认识为所做的以泥质砂岩、泥岩和硅质胶结的坚硬砂岩为试样的实验所证实。
- Based on the theory of elastic wave in saturated soils estabblished by the fundamental equaations of Rayleigh wave in a saturated soil ground are derived herem. 基于第一作者提出的饱和土弹性波动方程,本文提出了饱和地基中端利波的频率特征方程,并由此分析了瑞利波传播速度和衰减系数随振动频率、土渗透系数等因素而变化的规律性。
- 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。
- This paper presents a new finite-difference (FD) method for spatiall irregular grids to simulate elastic wave propagation in heterogeneous anisotropic media. 从弹性波动方程出发,提出了一种新的空间不规则网格有限差分方法,并用于求解非均匀各向异性介质中的弹性波正演问题。
- The fluid and lithology can be predicted effectively by elastic wave impedance inversion which use the offset seismic angle stacked data under the consideration of AVO effect. 弹性波阻抗反演利用远炮检距地震角度叠加数据,考虑了AVO效应,可以有效预测流体和岩性。
- The faultiness of existing models was discussed.A new model for elastic wave velocity of unconsolidated sandstone was developed on the basis of these models. 首先讨论了现有各类模型存在的不足,并在这些模型的基础上,提出了新的疏松砂岩弹性波速分析模型。