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在无限域用有限无法求解波的传播问题,通常需要在模型引入虚构的边界。我们希望能消除边界反射以模拟无限域。为了吸收边界反射的能量,Lysmer及Kuhlemeyer (J.Eng.Mech.Div.ASCE
Finding the wave propagation problem infinite in infinite domain usually requires introducing fictitious boundaries into the model. We want to eliminate the boundary reflections to simulate infinite fields. In order to absorb the energy reflected by the boundary, Lysmer and Kuhlemeyer (J. Eng. Meech. Div. ASCE