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.
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。
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.
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；
Method for computing the element restoring force, rather than the stiffness matrix, is the most important factor that determines the accuracy of a geometric nonlinear finite element problem.
几何非线性单元的精度主要决定于单元恢复力的计算方法，刚度矩阵对单元精度的影响很小。
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