详细分析了动力显式算法中虚功方程的空间域有限元离散方法和有限元方程的时间域中心差分离散方法。
The spatial field FE discrete method of the virtual work equation and the time field central difference discrete method of the FE equation in the dynamic explicit method are described in detail.
此外，文章详细分析了由边界连续条件构造的方程组在不同情况下的求解过程，给出了简单方便的求解方法。
In addition, the solution process of equations formed by boundary condition of continuity in different situation is analyzed, and the simple and convenience solution is given.
运用电磁场理论详细分析了环状波导管内电磁场各分量方程、模式特征及其强度分布。
Equations of components, field properties and intensity distribution of the electromagnetic field of the annular waveguide are analyzed in detail with the theory of the electromagnetic field.
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