基于符号解析的张拉整体结构形态优化分析
Morphological optimization analysis of tensegrity structure based on symbolic analysis
刘海 1张志宏1
作者信息
- 1. 上海师范大学建筑工程学院,上海 201418
- 折叠
摘要
提出符号解析法并应用于常态荷载工况下张拉整体结构的形态优化.该方法采用几何特征参数为变量,以张拉整体结构中压杆的预压应力水平最低为优化目标,考虑对称性和索不松弛,通过全局搜索找到最优的张拉整体结构形态.最后,通过张拉整体人行桥的算例,表明该方法具有良好的工程实用性.
Abstract
A symbolic analysis method is proposed and applied to morphological optimization of tensegrity structures under normal load conditions.This method uses geometric characteristic parameters as variables,and takes the lowest prestress level of the compression bar of the tensegrity structure as the optimization objective.Considering the symmetry condition and the cable non-relaxation condition,the optimal tensegrity structure is found by global search.Finally,an example of the tensegrity footbridge shows that this method has good engineering practicability.
关键词
张拉整体结构/平衡矩阵/形态优化/符号解析Key words
tensegrity structure/equilibrium matrix/morphological optimization/symbolic analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据