Several approximate elastic wave equations in which reflection and conversionare weaker than in accurate ones are first discussed in the paper.
本文首次探讨了对弹性波在传播过程中的反射和波型转换有任制作用的弹性波方程的形式。
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.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
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。
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