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弹性波方程
相关语句
  elastic wave equation
     VSP SYNTHETIC RECORD SIMULATED BY ELASTIC WAVE EQUATION
     弹性波方程的VSP合成记录
短句来源
     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
短句来源
     A STAGGERED-GRID HIGH-ORDER DIFFERENCE METHOD OF ONE-ORDER ELASTIC WAVE EQUATION
     一阶弹性波方程交错网格高阶差分解法
短句来源
     The Study of Inverse Method with Parameters about Two-Dimensional Elastic Wave Equation
     二维弹性波方程参数反演方法研究
短句来源
     Elastic wave equation inversion of seismic data in layered half-space.
     层状半空间地震数据的弹性波方程反演
短句来源
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  elastic wave equations
     The elastic wave equations and the boundary conditions of SAW in different media are studied,and the behaviors of SAW in the isotropic,anisotropic and piezoelectric media are fully discussed.
     通过对不同介质中的弹性波方程和表面弹性波边界条件的研究,对各向同性、各向异性以及压电介质中的表面弹性波行为进行了详细的讨论。
短句来源
     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
短句来源
     A PARALLEL ALGORITHM WITH FINITE ELEMENT FOR SOLVING 3-D ELASTIC WAVE EQUATIONS
     有限元解三维弹性波方程的并行算法
短句来源
     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.
短句来源
     To study the generation mechanism and propagation rule of Rayleigh surface waves, and to accelerate the corresponding development of data processing method, the paper applies the finite-difference method with staggered grids to simulate full-wave-fields, including both Rayleigh surface wave and body waves, in shallow isotropic media based on elastic wave equations.
     为研究瑞雷面波的形成机理及传播规律,促进瑞雷面波资料处理方法的发展,本文根据弹性波方程,采用交错网格有限差分数值求解算法,对浅层各向同性弹性介质进行了包括瑞雷面波和体波在内的全波场模拟.
短句来源
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  “弹性波方程”译为未确定词的双语例句
     The study in the paper is based on acoustic wave equation, but its research methods are also suitable to elastic and viscoelastic wave equation.
     本文提出的反演理论,主要是基于声波波动方程展开讨论和研究的,其研究方法对于弹性波方程和粘弹性波方程同样适应。
短句来源
     In this paper, the wave-field simulation based on the BISQ equation in the isotropic medium is performed by using the FCT finite difference method, and the wave-field snapshots are compared with the results obtained from Biot's theory only including the Biot mechanism.
     本文从同时包含两种力学机制的孔隙弹性波方程出发 ,利用FCT有限差分法对含流体孔隙各向同性介质中的地震波和声波进行了数值模拟 ,并与基于Biot流动的Biot理论之模拟结果进行比较 .
短句来源
     Based on Biot theory, the paper presented staggering grid finite-difference algorithm with any even-order precision of 3-C elastic wave e-quation in 2-D biphase dip anisotropic medium,and conducted simulation of elastic wavefield in homogeneous and two-layered biphase VTI and TTI media.
     基于Biot理论,本文提出了二维双相任意倾斜各向异性介质三分量弹性波方程交错网格任意偶阶精度有限差分解法,并对均匀及两层双相VTI介质和TTI介质中的弹性波场进行了模拟。
短句来源
     Three-dimensional numerical simulation of elastic wave propagation in 3-D anisotropic media with staggered-grid high-order difference method
     三维各向异性介质中弹性波方程交错网格高阶有限差分法数值模拟
短句来源
     Compact finite difference scheme for elastic equations
     弹性波方程的紧致差分方法
短句来源
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  elastic wave equation
The effective Lame coefficients of the porous medium and the nonlinear elastic wave equation are deduced, based on the fact that the micro-unit of the effective medium should have the same stress and strain as the micro-unit of the porous media.
      
The numerical modeling of 3-D elastic wave equation using a high-order, staggered-grid, finite difference scheme
      
It could be called as the inversion of elastic wave equation.
      
The parameter perturbation method on elastic wave equation in inhomogeneous medium
      
The multi-parameter inversion of elastic wave equation in a half-space within the Born approximation is studied.
      
更多          
  elastic wave equations
Here, we use second-order, temporal- and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-D elastic wave equations of motion.
      
The set of absorbing boundary conditions based on paraxial approximations of 3-D elastic wave equations are applied to the numerical boundaries.
      
The theories of EFM for both acoustic and elastic wave equations as well as absorbing boundary conditions were discussed respectively.
      
We compute synthetic seismic sections for fluid-filled cavern reservoirs of various heights and widths using random media models and inhomogeneous media elastic wave equations.
      
It can be used for a variety of wave equations such as the acoustic wave equation, the isotropic and anisotropic elastic wave equations and the equations for wave propagation in multi-phase and so on.
      
更多          


In the case of approximate acoustic medium,the generalized least square criterion can be used to solve the nonlinear inversion of seis- mic reflection information;then a set of mathematical mcdels can be estabilished which determine correction values of medium models in terms of the residual differences between the real seismic data and the synthetic data corresponding to the medium models.The used seismic data are prestack data:therefore,this method considers the energies of direct wave,refraction wave and...

In the case of approximate acoustic medium,the generalized least square criterion can be used to solve the nonlinear inversion of seis- mic reflection information;then a set of mathematical mcdels can be estabilished which determine correction values of medium models in terms of the residual differences between the real seismic data and the synthetic data corresponding to the medium models.The used seismic data are prestack data:therefore,this method considers the energies of direct wave,refraction wave and multiple wave.If we start with elastic wave equation,surface wave energy can be considered as well. The key to this method lies in the development of forward model. In order to choose a forward modeling method which not only takes less computer time but also brings high accuracy,we apply 6th-order finite difference method to forward modeling.Theoretical modeling proved this method feasible.To simplify the problem,we only deal with the case of single varied parameter(velocity).

本文在声波介质近似下,采用广义最小平方准则求解地震反射信息的非线性反演问题,并由此建立了一套由当前地震记录(对应于当前介质模型)与观测到的地震记录之间的残差确定介质模型修改量的数学模型。因所用资料是叠前资料,所以该方法考虑了直达波、折射波和多次波能量。若从弹性波方程出发,则可考虑面波能量。该方法的关键在于正演模型的建立,为了选择一个既省机时,精度又高的正演模拟方法,本文在试算过程中,采用了六阶有限差分法进行正演模拟。理论模型的试算结果表明,该方法是可行的。为使问题简化,我们只考虑了单一参数(速度)变化的情形。

A kind of Radon transform over a family of S~(n-1) is considered. The inverse formula is obtained and its application to imaging in the inverse scattering problem is discussed.

本文考虑了一类R~n空间中的球面簇上的拉当(Radon)变换的问题,利用平面波分解给出了反演公式,最后,讨论了弹性波方程的逆散射问题。

One-dimensional elastic wave equation in anisotropic EDA medium is derived by using Hooke's law and the kinematic equation of nonindividual body in elastic theory, followed by a series of hypotheses. Then, synthetic one-dimensional VSP record in anisotropic EDA medium is obtained by solving the elastic wave equation with the use of Fourier algorithm. The numerical synthetic record and hodograph clearly show rich wave field, S-wave splitting,attenuation or absorption of amplitude and frequency in the anisotropic...

One-dimensional elastic wave equation in anisotropic EDA medium is derived by using Hooke's law and the kinematic equation of nonindividual body in elastic theory, followed by a series of hypotheses. Then, synthetic one-dimensional VSP record in anisotropic EDA medium is obtained by solving the elastic wave equation with the use of Fourier algorithm. The numerical synthetic record and hodograph clearly show rich wave field, S-wave splitting,attenuation or absorption of amplitude and frequency in the anisotropic medium.

本文从弹性力学理论的Hook定律和连续体运动方程出发,经过一系列的假设,最后导出了一维情况下EDA介质各向异性的弹性波方程,并用Fourier算法求解该方程,获得了一维模型的EDA介质各向异性的VSP模拟记录。数值模拟记录及矢端图表明,记录上波场丰富,横波分裂以及振幅和频率在各向异性介质中的衰减、吸收等现象清晰可见。

 
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