Circumferential Guided(圆周导向)研究综述
Circumferential Guided 圆周导向 - A new spectral method based on the hybrid formula system of the state-vector and Legendre polynomials are used to derive the explicit expressions of circumferential guided waves in the anisotropic multilayer composite cylinders with an arbitrary lay-up. [1] As the ultrasonic attenuation of the multiphase mixture increases, the amplitude of the signal through the fluid mixture decreases relative to that of circumferential guided waves, making it difficult to determine the time of arrival of the fluid-path signal and, hence, the speed of sound in the mixture. [2] The feasibility of using the nonlinear effect of primary circumferential guided wave (CGW) propagation for characterizing the change of inner layer thickness of a composite circular tube (CCT) has been investigated. [3] Moreover, dispersion equations of circumferential guided waves in pipes are derived in the helical coordinate to accommodate the stress and displacement calculations in the scattered field using hybrid FEM. [4]采用基于状态向量和勒让德多项式混合公式系统的新谱方法推导任意叠层各向异性多层复合圆柱体中周向导波的显式表达式。 [1] 随着多相混合物的超声衰减增加，通过流体混合物的信号幅度相对于周向导波的幅度减小，使得难以确定流体路径信号的到达时间，因此难以确定流体的速度。混合物中的声音。 [2] 研究了利用初级圆周导波（CGW）传播的非线性效应来表征复合圆管（CCT）内层厚度变化的可行性。 [3] 此外，在螺旋坐标系中导出了管道中圆周导波的频散方程，以适应使用混合有限元法计算散射场中的应力和位移。 [4]
circumferential guided wave 圆周导波
A new spectral method based on the hybrid formula system of the state-vector and Legendre polynomials are used to derive the explicit expressions of circumferential guided waves in the anisotropic multilayer composite cylinders with an arbitrary lay-up. [1] As the ultrasonic attenuation of the multiphase mixture increases, the amplitude of the signal through the fluid mixture decreases relative to that of circumferential guided waves, making it difficult to determine the time of arrival of the fluid-path signal and, hence, the speed of sound in the mixture. [2] The feasibility of using the nonlinear effect of primary circumferential guided wave (CGW) propagation for characterizing the change of inner layer thickness of a composite circular tube (CCT) has been investigated. [3] Moreover, dispersion equations of circumferential guided waves in pipes are derived in the helical coordinate to accommodate the stress and displacement calculations in the scattered field using hybrid FEM. [4]采用基于状态向量和勒让德多项式混合公式系统的新谱方法推导任意叠层各向异性多层复合圆柱体中周向导波的显式表达式。 [1] 随着多相混合物的超声衰减增加，通过流体混合物的信号幅度相对于周向导波的幅度减小，使得难以确定流体路径信号的到达时间，因此难以确定流体的速度。混合物中的声音。 [2] 研究了利用初级圆周导波（CGW）传播的非线性效应来表征复合圆管（CCT）内层厚度变化的可行性。 [3] 此外，在螺旋坐标系中导出了管道中圆周导波的频散方程，以适应使用混合有限元法计算散射场中的应力和位移。 [4]