摘要
本研究利用非线性有限元方法,对4点支承的柱面单层叉筒网壳的几何非线性稳定全过程进行分析。通过对不同矢跨比网壳的失稳前后全过程曲线的对比分析,研究了矢跨比对该种网壳结构稳定性的影响,并得出了较优矢跨比。
Based on nonlinear finite element theory, the whole geometrical nonlinear static stability of the single layer latticed intersected cylindrical shell structures is analyzed. Through a contrastive analysis of the whole buckling curve about the structure on ratio of rise to span, the stability behavior of the shell is investigated, and the optimum ratio of rise to span is identified.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2008年第1期103-106,共4页
Journal of Hebei Agricultural University
基金
河北省自然科学基金资助项目(503248)
关键词
叉筒网壳
几何非线性
矢跨比优化
静力稳定
临界荷载
single layer latticed intersected cylindrical shell structures
geometrical nonlinear
ratio of rise to span optimization
static stability
critical loads
