论文部分内容阅读
采用传递矩阵法求解三层均匀各向同性的层状弹性固体介质中瑞利波频散曲线及自由表面的垂直位移强度,对不同情形下多导波模式的频散曲线和位移曲线特征进行了理论和数值模拟研究。声源中心频率变化时的计算结果表明,位移的激发强度与声波的频率存在密切的关系;数值模拟结果表明,在不同模型情况下接收到的导波模式是不同的。因此,在对野外勘探中,震源频率的选择和资料解释应引起注意。
The transfer matrix method was used to solve the Rayleigh wave dispersion curve and the vertical displacement intensity of the free surface in the three-layer uniform isotropic layered elastic solid medium. The dispersion curve and displacement curve characteristics of the multi-wave mode in different situations Theoretical and numerical simulation. The calculation results show that the excitation intensity of the displacement is closely related to the frequency of the acoustic wave. The numerical simulation results show that the guided wave modes received in different models are different. Therefore, in field exploration, the frequency of source selection and data interpretation should be noted.