考虑初始缺陷的扭壳、扭网壳的整体稳定分析

General Stability Analysis of Torsional Shell and Torsional Reticulated Shell with Original Imperfections

本文应用非线性有限元法，对考虑初始缺陷的扭壳、扭网壳进行整体稳定分析，获得了临界状 态时的失稳模态和临界荷载。并在工程实例计算的基础上，找出了一些规律，供工程参考。

In this paper, the nonlinear FEM is used to analyze the general stability of torsional shell and torsional reticulated shell with original imperfections. The modality of stability and the critical loads at critical condition are obtained. Through the analysis of examples, some regularity has been found and may be used as a reference in engineering.