The geometricstability analysis of structure is the primary job of morphological analysis.
结构的几何稳定性分析是形态分析的首要工作。
2
Numerical calculation process to obtain the tangent stiffness matrix of structure is deduced and geometricstability of different types of structures are analyzed.
推导了铰接杆系结构切线刚度矩阵较为简便的计算生成过程，便于在编程中实现。
3
The results show that the geometricstability criterions can resolve the limitation of experience design and ensure safety and rationality of folding structure design.