The propagation velocity of elastic wave with different frequencies in same medium is various, which is called dispersive problem of frequency.
相同介质中不同频率的弹性波传播速度是有差异的，即频散问题。
Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through "variable cross-section" of metal bar embeded layer was put forward.
运用波动的经典理论，提出了导波在金属杆嵌入层“变截面”传播时波速改变的“等效弹性模量”的概念。
Elastic wave propagation in anisotropic medium is simulated by solving the equation system with the aid 'of Fourier numerical method (pseudo-spectrum method).
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。
The basic properties of elastic wave propagation in inhomogeneous damaged media were discussed by examples and the numerical results were compared with analytical results.
对几种非均匀损伤介质中波的传播进行了实例数值计算，并和其解析解的结果进行了比较，讨论了弹性波在非均匀损伤介质中传播的一般性质。
Faults are widely existed in crust. They effect the elastic wave scattering as site condition. The analysis of wave propagation by fault is important both in theory and engineering.
断层广泛存在于地壳中，作为场地条件影响地震波的传播，研究断层对弹性波散射的影响对理论研究和工程应用均有十分重要的意义。
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 theory of elastic wave propagation in damaged media was studied.
对弹性波在损伤介质中的传播理论进行研究。
These results are necessary for solving the problem of elastic-plastic wave propagation in a bar.
这些结果对于解决杆中弹塑性波传播问题是必需的。
The thin layer method(TLM) is a semi-analytical and semi-numerical approach for the analysis of elastic wave propagation in stratified media.
利用结构力学与最优控制的模拟理论，研究弹性波在层状介质中传播的数值计算方法。
The elastic wave element suppresses variation in propagation characteristics of the elastic wave and exhibits high reliability.
该弹性波元件抑制弹性波的传播特性的变动，具有高可靠性。
Concrete is not a ideal elastic material, and laws of wave propagation are not same with different wavelength.
混凝土并非理想弹性体，不同测试方法中波的传播规律是不同的。
Basing on the fundamentals of elastic dynamics and the model of damaged mechanics, the basic equations of elastic wave propagation in damaged media are established.
利用弹性动力学基本原理和损伤力学模型建立了损伤介质中的波动方程。
By theoretical analysis and numerical computation of MS wave's propagation, the propagation law of wave in attenuation elastic-viscosity media had been given.
对微地震波的传播进行了理论分析和数值计算，得到了存在衰减的粘弹性介质中纵波的传播规律。
This article provides the application of the high-order, staggered-grid, finite-difference scheme to model elastic wave propagation in 3-d isotropic media.
本文应用交错网格高阶有限差分方法模拟弹性波在三维各向同性介质中的传播。
The viscosity of blood, the elastic modulus of blood vessel and the radius of tube that influenced the pulse wave propagation were analyzed.
通过理论分析对脉搏波在血管中的传播规律进行研究，同时分析了血液粘性、血管壁弹性模量、管径对波的传播的影响。
Several properties of the weak discontinuity across an elastic-plastic boundary in plane wave propagation have been investigated by using the theory of singular surface.
本文用奇异面理论研究了弹塑性平面波传播中弹塑性边界间断的几个性质。
The propagation characteristic of nonlinear flexural wave in a prestressed beam buried inside nonlinear elastic foundation is studied in this paper.
研究了埋置于非线性弹性地基内预应力梁中非线性弯曲波的传播特性。
The dynamic test, based on the theory of elastic wave propagation, is much easier than the static test due to the light equipment, flexible methodology, and smaller expense.
基于波动理论的动力学测试方法设备轻便、实施灵活、成本较小，因此岩土体动力学参数的获得往往要容易得多。
The dynamic test, based on the theory of elastic wave propagation, is much easier than the static test due to the light equipment, flexible methodology, and smaller expense.
基于波动理论的动力学测试方法设备轻便、实施灵活、成本较小，因此岩土体动力学参数的获得往往要容易得多。
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