| 不稳定体系的形态及内力分析 |
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| 引用本文： | 刘郁馨 惠卓. 不稳定体系的形态及内力分析[J]. 南京建筑工程学院学报, 1997, 0(1): 1-6 |
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| 作者姓名： | 刘郁馨 惠卓 |
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| 作者单位： | 南京建筑工程学院建工系，东南大学土木系 |
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| 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。
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| 关 键 词： | 不稳定性；形态；内力；广义逆矩阵 |
Shape Analysis and Internal Force in Unstable Systems |
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| Liu Yuxin ) Hui Zhuo ) Hu Chaobin ). Shape Analysis and Internal Force in Unstable Systems[J]. Journal of Nanjing Architectural and Civil Engineering Institute(Natural Science), 1997, 0(1): 1-6 |
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| Authors: | Liu Yuxin ) Hui Zhuo ) Hu Chaobin ) |
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| Affiliation: | Liu Yuxin 1) Hui Zhuo 2) Hu Chaobin 1) |
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| Abstract: | 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. |
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| Keywords: | unstability morphology internal force generalized inverse matrix |
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