摘要
介绍了一种利用粘 -弹性边界模拟波向无穷远辐射的具有无穷边界问题的计算方法 .粘 -弹性人工边界不仅考虑了对散射波能量的吸收 ,还能模拟半无限地基的弹性恢复能力 .数值计算结果表明 :粘 -弹性边界精度高于粘性边界 。
This paper introduces a numerical simulation method for infinite media. A viscous-spring boundary is used for simulating infinite boundary condition. The method can simulate not only the radiation damping of semi-infinite soil, but also the elasticity recover capacity of the far field media on the boundary. The accuracy of the method is better than the method of viscous boundary and it has good stabilization.
出处
《兰州铁道学院学报》
2002年第3期9-13,共5页
Journal of Lanzhou Railway University
