本文基于焊接空心球节点单层网壳结构的构造特点，给出了一种不增加总自由度数的考虑焊接空心球节点影响的单层网壳结构几何非线性有限元分析方法。
This paper presents a geometrically nonlinear FEM with less degrees of freedom, of single layer reticulated shells when the effects of welded hollow spherical hodes are considered.
橡胶是一种特殊的材料，要实施橡胶制品的有限元分析，就要能综合处理几何非线性、材料非线性以及边界非线性问题。
Rubber is a very unique material, proper analysis of rubber components require handling the problems of geometric nonlinearity, nonlinear boundary conditions, and material nonlinearity.
该文应用具有平衡迭代格式的荷载增量法对非保守力作用下鞭天线结构的几何非线性问题进行了有限元分析；
The geometric nonlinear problem of whip antenna structure underthe action of nonconservative loads is analyzed by means of the loading incremental method which has the balanceiteration format.
分析了混凝土本构模型、钢管与混凝土界面摩擦系数和几何非线性等对有限元分析结果的影响。
The influences of concrete constitutive model, friction coefficient, and geometric non-linearity on the results of finite element analysis were discussed.
分析了混凝土本构模型、钢管与混凝土界面摩擦系数和几何非线性等对有限元分析结果的影响。
The influences of concrete constitutive model, friction coefficient, and geometric non-linearity on the results of finite element analysis were discussed.
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