本文对无限单元法中组合刚度矩阵的计算给出了一个新的迭代方法。

This article is intended to give a new iterative method to calculate the combined stiffness matrix in the infinite element method.

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应用有限棱柱单元法对群桩与土相互作用系统进行了三维弹塑性分析，并以无限棱柱元模拟半无限空间地基土的边界条件。

In this paper, the three dimensional elastoplastic analysis of a group pile soil interaction system is made by using the finite prism element method.

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该文采用积分方程法及模式匹配法对矩形波导单元无限相控阵进行了分析与设计。

First, the integral equation of an infinite phased array of rectangle waveguide with rectangle grid was deduced and its solution by moment method was presented either.

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