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按照全Ｌａｇｒａｎｇｅ描述法，分析了几何非线性因素对空间网架结构的影响。算例中对所给出网架的节点挠度及自振特性，与线性计算结果作了比较。
According to the full Lagrange description method, the influence of geometric nonlinear factors on the spatial network structure is analyzed. In the example, the deflection and natural vibration characteristics of the given grid are compared with the linear calculation results.