弹性介质

弹性介质中直杆临界荷载P（cr）的加权余量解

Weighted Residual Solution for the Critical Load P ( cr ) of a Straight Bar in an Elastic Medium

为了考虑弹性介质的影响，采用了简化的Winkler地基模型；

The effect of elastic medium is considered using a Winkler model .

具有抛物线边界的二维弹性介质的Green函数

Green 's Functions of Two-Dimensional Anisotropic Body with a Parabolic Boundary

压电、压磁和电磁各向异性弹性介质二维问题的Green函数

Green function for two-dimensional anisotropic elastic media with piezoelectric , piezomagnetic and magnetoelectric properties

各向异性电磁弹性介质的Green函数

Green 's Functions for Anisotropic Electromagnetic Elastic Media

半空间弹性介质内圆形衬砌对平面P波的散射

Scattering of Plane P Waves by a Circular Lining Buried in Semi-infinite Space Composed of Elastic Media

非均匀弹性介质地震波动模拟的Fourier变换方法

Fourier transform method of simulating seismic wave in Heterogeneous Elastic Media

各向同性弹性介质中P波与SV波的非线性相互作用

Nolinear interaction between P and SV wave in isotropic elastic media

粘弹性介质中地震体波Q值的测定方法

The measured method of seismic body Q value in the viscoelastic medium

粘弹性介质中扩展裂纹与J积分

Propagating crack and J integral in viscoelastic body

在弹性介质情况下，这种推广的守恒积分就是Rice定义的J积分。

In the case of the elastic mediums , the extensive conservative integral is the same with Rice 's J-integral .

层状粘弹性介质中SH波的反射、透射问题

Reflection and Transmission Problem of SH Waves in Layered Viscoelastic Medium

弹性介质中平面SH波通过弹性夹层时的传播特性

Propagation characteristics of plane SH wave passing through elastic interlining in elastic medium

在其沿界面的传播过程中，显示出和弹性介质中经典的Rayleigh面波一样的强振幅能量。

The surface-wave mode propagates with strong energy , as the classical Rayleigh wave in elastic media .

在考虑纵横波Q值的基础上，利用交错网格高阶差分法对粘弹性介质中地震波传播进行了数值模拟。

Taking the Q-values of P-and S-wave into account , numerical simulation of seismic waves in viscoelastic media was implemented by staggered higher-order difference scheme .

应用作者提出的二阶势理论，本文研究了各向同性弹性介质中P波与SV波的非线性相互作用，得到了相互作用波的表达式。

Using the second-order potential theory proposed by the author , this paper gives an investigation to the nonlinear interaction of P and SV waves in isotropic elastic media .

通过引入两个势函数将弹性介质的控制方程解耦成两个Helmholtz方程。

The governing equation of elastic media can be decoupled into two Helmholtz equations by introducing two potentials .

根据地震波在非弹性介质中的传播规律，本文提出了一种在深度域地震剖面进行反Q滤波的新方法。

Based on the laws of inelastic media , this paper gives a forward Q method for compensating attenuation and frequency dispersion used in the seismic profile of depth domain .

结果给出了弹性介质中SH波传播数值模拟三角形格子法。

A triangular grid algorithm is presented for simulating out-of-plane shear ( SH ) wave propagation in heterogeneous elastic media with irregular boundary .

应用Hankel变换，求解了横观各向同性弹性介质的轴对称动力学方程。

The dynamic equations of transversely isotropic elastic media in cylindrical system are solved by means of Hankel transform .

充有弹性介质多层复合材料圆筒壳稳定性本文以Cheng理论为基础，究研园柱形薄壳的自由振动问题。

In the present paper , the investigation for the problem of free vibration of thin elastic circular cylindrical shells is based on the Cheng 's theory .

通过数值计算考察了柱面Love波的频散特性和激发强度，发现最低阶柱面Love波具有截止频率，这与平面半空间双层弹性介质模型下的Love波无截止频率的特征不同。

Dispersion and excitation of cylindrical Love waves are investigated by numerical calculation . It is discovered that the lowest order cylindrical Love waves have cut off frequency , which differs from Love waves in half space with horizontally double layered elastic media .

一维的纵向压缩波在同质的粘弹性介质中传播时，材料的粘弹性特性主要通过纵向波的传播速度c（w）和衰减系数a（w）两项来定义。

Any homogeneous viscoelastic medium subjected to one-dimensional tension and compression can be characterized in terms of the phase velocity c ( w ) and the attenuation coefficient deduce the complex modulus and the other equivalent viscoelastic functions .

利用数值方法得到了频散方程的完全解，对弹性介质中充液钢质管道和PVC塑料管道波传播衰减特性进行了研究。

A complete solution of dispersion equation was gained with numerical method , and the attenuation characteristics of wave propagation in fluid filled metal pipes and PVC plastic pipes surrounded by elastic media were studied .

基于Dirac-delta函数的积分表示和Cauchy留数定理，导出了压电、压磁和电磁各向异性弹性介质二维问题的Green函数。

Based on the integral representation of Dirac - delta function and Cauchy 's theory of residues , the Green 's function for two-dimensional anisotropic elastic media with piezoelectric , piezomagnetic and magnetoelectric coupling effects is derived .

指出，在不同弹性介质分界面上入射平面弹性波，转换波的反射系数和透射系数是射线参数p的奇函数；非转换波的反射系数和透射系数是射线参数p的偶函数。

· The reflection and transmission coefficients of plane elastic and converted waves incident upon an interface between different elastic media are the odd functions of ray parameter p respectively . · The reflection and transmission coefficients of unconverted wave are the even function of ray parameter p.

首先给出了开尔芬粘弹性介质中的波动方程，推导出二维粘弹性介质最佳匹配层（PML）吸收边界条件及其相应的伪谱法计算公式；

Through the given wave equation in Kelvin viscoelastic medium , the PML absorbing boundary condition and its pseudo-spectral method formulae in2-D viscoelastic medium were derived .

水射流采用标准kε双方程模型和控制体积法，岩石采用各向同性弹性介质和有限元法，给出了水射流与岩石耦合的数值算法。

In the model , the standard k-epsilon two equations model and control volume method for water jets , and the elastic orthotropic continuum and finite element method for rock are adapted . Also , a numerical algorithm for both materials is given .

本文利用加权余量法推导出位于弹性介质中的直杆，承受轴向荷载而发生弹性失稳时，临界荷载P（cr）的计算式。

With respect to a straight bar subjected an axial load in an elastic medium , this paper makes use of the method of weighted residual to derive a formula for calculating its critical load p_ ( er ) from then the elastic instability occurs .

本文给出了一种混合有限差分算法，用声波方程描述波在弹性介质中的传播特性，用Biot的P波方程描述波在含流体多孔介质中的传播特征。

A mixed finite difference method is given , which uses acoustic wave equation to de - scribe wave behaviour in an elastic medium , and adopts Biot 's P wave equation to depict wave behaviour in fluid saturated porous medium .