Three-dimensional geometrically nonlinear analysis of slack cable structures
Three-dimensional geometrically nonlinear analysis of slack cable structures
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DOI：
10.1016/j.compstruc.2013.06.005
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发表时间：
2013-11
影响因子：
4.7
通讯作者：
M. Ahmadizadeh
中科院分区：
文献类型：
--
作者：
M. Ahmadizadeh
提出了一种有效的迭代方法，用于对以松弛缆索作为主要承载系统的结构进行三维大位移分析。这种方法利用了专门为解决任意载荷下松弛电缆的分析和找形问题而定制的子结构技术，并降低了总体分析成本。在整体结构层面，采用稳健的程序来检测不稳定性并限制相应的增量位移。大量松弛缆索系统的分析实例证明了所提出的方法用于分析高度不稳定或变形结构的有效性。
An effective iterative method is proposed for three-dimensional large-displacement analysis of structures consisting of slack cables as the primary load-bearing system. This approach takes advantage of substructuring technique that is specially tailored to address the analysis and form-finding problem of slack cables subjected to arbitrary loads, and to reduce the overall analysis costs. At the overall structural level, a robust procedure is employed for detecting the instabilities and limiting the corresponding incremental displacements. The effectiveness of the proposed method for the analysis of highly unstable or variable-form structures is demonstrated by a number of analysis examples of slack cable systems.