推导了用于非均匀各向异性弹性波场正演的伪谱法基本公式。
The basic formula of pseudo spectral method are derived for simulating inhomogeneous anisotropic elastic waves field.
本文提出新的测定岩石各向异性弹性参数的方法——纯弯梁法。
A new measuring method of elastic constants of anisotropic rocks based on the concept of purely bended beam has been developed by the authors.
而对于一般各向异性弹性楔形体,通常面内位移和面外位移相互耦合。
Howover, they are coupled for a general anisotropic elastic wedge in general.
分析了计及高阶横向剪切变形的正交各向异性弹性板自由振动的问题。
The transverse shear deformation effect is included by use of Mindlin-Reissner first-order shear deformation theory.
采用复变方法,讨论了带周期裂缝的不同材料拼接的各向异性弹性平面第二基本问题。
In this paper the second fundamental problems in anisotropic elastic plane with periodic cracks are discussed by the complex variable methods.
本文针对连接结构中含圆孔的复合材料板,根据非均质各向异性弹性理论建立计算模型。
According to the nonhomogeneous anisotropic elastic theory, a calculation model of the composite material plate with the circular hole in joint structures is set up.
本文试图借助复变函数方法求解在面斜对称载荷下无限各向异性弹性介质的周期裂纹问题。
This paper attempts to solve the periodic crack problems of infinitive anisotropic media for plane skew-symmetric loadings by means of the method of complex function.
本文采用三维各向异性弹性理论直接求解纤维增强的复合材料叠层圆柱壳体在轴向载荷作用下的位移场和应力场。
In this paper, the displacement and stress fields for a composite laminated circular shell under axial load are solved by. using three-dimensional anisotropic elasticity theory.
合成了几种具有大介电各向异性和小弹性常数的线性多烯化合物,并对其物理性质进行了测定。
Several linear polyene compounds with extraordinarily large dielectric anisotropy and small elastic constant were synthesized and their physical properties evaluated.
这对各向异性介质中的弹性参数反演、偏移成像和地震资料的精确解释等都有重要意义。
It has an important meaning for elastic parameters inversion in anisotropic media, migrated imaging and precise interpretation of seismic data.
文中建立了一套模拟算法,研究了各向异性与各向同性介质中弹性波场的特征。
We offer the simulation algorithm, and analyse the characters of elastic wave fields in anisotropic medium and isotropic medium respectively.
提出了一种非均匀各向异性介质中弹性波传播的数值模拟算法。
A new numerical simulation algorithm is presented for the elastic wave propagation in heterogeneous anisotropic media.
从各向异性介质的弹性波理论出发,本文系统地分析了各向异性土介质中地震波的传播特性。
Based on the theory of elastic wave in anisotropy medium, the characteristic of the seismic wave is analyzed in this paper.
本文利用傅里叶数值方法(即伪谱法)求解该方程来模拟各向异性介质中弹性议的传播。
Elastic wave propagation in anisotropic medium is simulated by solving the equation system with the aid 'of Fourier numerical method (pseudo-spectrum method).
针对裂缝性地层的裂缝发育方位问题,建立具有任意方位角的方位各向异性黏弹性本构关系。
This work establishes a new constitutive relation on the azimuthally anisotropic linear viscoelastic media with an arbitrary azimuthal angle for the fractured strata.
研究发现涂层弹性模量与喷涂方向有关,呈现了各向异性的特性。
If was found that the spraying orientation has effect on Young's modulus of coating which takes on the anisotropic property.
研究简谐弹性波在一般各向异性介质单侧接触界面上的反射和折射问题。
Reflection and refraction of harmonic elastic waves at a unilateral frictional contact interface is studied theoretically in this paper.
推导了各向异性平面弹性体中矩形孔洞边缘的应力分布公式并给出了数值计算结果。
A general solution for stress distribution around rectangle holes in anisotropic elastic plates is presented.
忽略各向异性影响的各向同性弹性阻抗公式不能正确地描述各向异性介质中弹性阻抗随入射角和方位角的变化。
The formulae for isotropic elastic impedance neglecting the effects of seismic anisotropy can't describe accurately the variation of elastic impedance with incident Angle and azimuth.
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。
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.
含流体孔隙各向异性介质中的弹性波传播问题是目前石油勘探和地震学研究的难点之一。
The issue of elastic wave transmission in anisotropic fluid-filled pore medium is one of difficulties in current petroleum exploration and study of seismology.
裂纹形核主要是通过位错堆积、晶界角源及弹性各向异性三种机理产生的。
Nucleation of crack is due to dislocation pile-up mechanism and elastic anisotropy mechanism.
文章对含i型裂纹的正交各向异性功能梯度材料板沿其板厚的弹性常数表达式呈指数函数变化时的应力-应变场进行分析。
In this article, the fracture analysis on mode I crack of orthotropic functionally gradient materials is studied, under which the elastic constants changed exponentially along thickness of the plate.
当地震信号通过复杂地球介质时,地层除了表现为各向异性,还表现为内在的粘弹性特征。
When a seismic signal propagates through a realistic medium in the Earth, in addition to anisotropy, the layers may show intrinsic viscoelastic behavior.
作者运用了等价空间和各向同性弹性板的一些结果,简明地解决了各向异性板的问题。
By utilizing the equivalent Spaces and some results from isotropic elastic plates, the author has solved the problem concisely.
本文在经典弹性薄板理论的基础上,通过拟板法将双向空心板等效为正交各向异性的实心板,建立无梁空心楼板的平衡方程。
Based on elastic theory, in this paper cast-in-situ RC hollow flat slab is converted to orthotropic plates by the pseudo-plates theory and the equilibrium equation is built.
木材作为高分子、各向异性材料,其弹性模量是表示木材和木质材料抵抗变形能力的一个重要物理量。
Wood as a polymer, anisotropic materials, the wood elastic modulus is an important physical quantity for wood or wood-based materials resist deformation ability.
在弹性力学求解新体系中,将对偶向量进行重新排序后,提出了一种新的对偶微分矩阵,对于有一个方向正交的各向异性材料的三维弹性力学问题发现了一种新的正交关系。
In a new systematic methodology for theory of elasticity a new dual differential matrix is presented by the dual vectors over again sorted and a new orthogonality relationship is discover.
提出一种新的三维空间不规则网格有限差分方法,模拟具有地形构造的非均匀各向异性介质中弹性波传播过程。
This paper presents a new 3d finite-difference (FD) method using spatially irregular grids to simulate elastic wave propagation in heterogeneous anisotropic media with topographic structures.
拉伸弹性模量与压缩弹性模量有明显差异,木质部属各向异性材料,建立力学模型应采用各向异性的本构关系。
There is a distinct difference between tensile and compressive modulus. Xylem is a kind of anisotropic material and modeling its mechanical model needs anisotropic constitutive relations.
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