索穹顶结构是大变形柔性组合结构，其受力分析属于几何非线性问题，求解较复杂。
Cable dome is a large deformation composite structure consisted of flexible cables. Its analysis is a geometric nonlinear problem and is difficult in its solution.
分析中采用了动力方法，考虑了几何大变形和冲击作用的影响。
The effects of geometric large deformation and impact action were taken into account in dynamic analysis.
采用大变形几何非线性有限元法分析强夯加固机理及其振动对环境影响。
The geometric nonlinear finite element method is used to analyze the impact mechanism of dynamic compaction.
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