Based on the theory of elastodynamics, the longitudinal guided wave and flexural guided wave group velocity dispersion curves for M22 stud were calculated.
根据弹性动力学理论，采用纵向导波与弯曲导波相结合的方法对螺柱所受轴向应力进行无损检测。
The results show that the propagation speed of the wave is not equal to the speed of energy flux, but nearly equal to the real part of the complex group velocity.
结果表明，波的传播速度并不等于能流速度，而与复群速度的实部近似相等。
The paper studies the concepts of phase velocity and group velocity on electromagnetic wave propagation and discusses the relation between signal conveyance and energy conveyance.
文章研究了电磁波传播的群速与相速概念，论证了信号传送与能量传递的必然联系。
Theoretical deduction says that in a borehole penetrating elastic formations, pseudo Rayleigh wave does not take shear-wave velocity, but its group velocity may be very close to shear-wave velocity.
推演说明在弹性地层的井眼中，伪瑞利波不可能以横波速度传播，但其群速度与横波速度可以非常接近。
The group velocity(U) corresponds to the net result from the addition of all elements with different periods and different velocities within the wave motion.
而群速度（U）符合于波动的不同周期，不同速度的各种因素叠加的净结果。
After finding the orthogonal sets corresponding to the guided-wave restriction condition, the analytic dispersive equation, group velocity equation and steady response are obtained simultaneously.
提出自结合方法，导出波传播的限定条件，在找到相应的正交序列后，完全得到弹性波导系统中解析形式的频散方程、群速度方程和稳态响应。
The variations of group velocity dispersion and nonlinear frequency shift with the wave frequency and film thickness are also studied.
研究了群色散和非线性频移随频率和薄膜厚度的变化规律。
The variations of group velocity dispersion and nonlinear frequency shift with the wave frequency and film thickness are also studied.
研究了群色散和非线性频移随频率和薄膜厚度的变化规律。
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