双曲空腹扁网壳结构稳定性分析

摘要

This paper by hyperboloid vierendeel latticed flat shell structure for example, using finite element software AISSYS for that type of shell stability analysis,using Block lanczos analysis of the structure of characteristic values,while balancing with the arc-length method to track technology shell structure geometrical nonlinear analysis and consideration of the impact of the initial defect the whole process of non-linear buckling analysis, and discuss the type of shell structure on the initial defect sensitivity.%以双曲空腹扁网壳为例,采用有限元软件ANSYS对该类网壳进行稳定性分析,用Block lanczos法分析结构的特征值,同时用弧长法平衡跟踪技术对结构进行几何非线性分析及考虑初始缺陷影响的非线性全过程屈曲分析,并讨论该类网壳结构对初始缺陷的敏感性问题.