【摘要】 从模拟散射波的观点出发，推导了波动问题局部解耦的人工边界条件，与有限元内点的时域 显式方法相结合建立了波动分析的局部解耦的直接分析方法。文中还从波动分解的概念，建立了外 源问题（如地震作用）输入方法．更多还原

【Abstract】 In this paper, an non-coupling artificial boundary condition in space and time is derived from simulating of propagation of scattering waves, and a direct non-coupling analyti- cal method for analysis of wave propagation problems is suggested by combining the artificial boundary with the explicit finite element method for solving of the interior nodal motions. An input method of seismic action problems is also introduced in the paper.更多还原