摘要
在外力作用下，由撑杆和索组成的可变体系将变为几何不变系统。要获得索绷紧结构体系，必须对体系的形态作出分析。为求解不稳定系统，得出空间形态的坐标及内力，本文提出了用广义逆矩阵理论及空间变换得出的迭代解法。结果分析表明，所提出的方法具有收敛快、精度较高的优点。
Unstable systems, composed of bars and cables, can be rigidified by external forces, the corresponding geometry is funicular shape under a set of determined forces. On basis of governing equations for determining the spatial coordinates of nodes and the associated internal forces in the members. An alternative iterative method is proposed. Some applications are developed attesting that the proposed procedure is efficient and reliable.
出处
《南京建筑工程学院学报》
1997年第1期1-6,共6页
Journal of Nanjing Architectural and Civil Engineering Institute(Natural Science)
基金
国家自然科学基金
关键词
不稳定性
形态
内力
广义逆矩阵
网状结构
unstability
morphology
internal force
generalized inverse matrix
