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根据系统识别方法的基本原理 ,在频域对粘弹性层状介质的材料参数进行了位移反分析研究 .结果表明 ,初始值对于反算结果的影响很小 ,反算过程稳定收敛 ,系统识别方法对于层状介质粘弹性参数的动态识别是适用、有效的
According to the basic principle of the system identification method, the material parameters of the viscoelastic layered media are studied by displacement back analysis in the frequency domain. The results show that the initial value has little effect on the inverse calculation result, the inverse convergence process converges steadily and the system identification method The dynamic identification of viscoelastic parameters of layered media is applicable and effective