Cellular morphogenesis of three-dimensional tensegrity structures
Cellular morphogenesis of three-dimensional tensegrity structures
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DOI：
10.1016/j.cma.2018.10.048
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发表时间：
2019-02
期刊：
影响因子：
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通讯作者：
Omar Aloui;J. Flores;David Orden;L. Rhode-Barbarigos
中科院分区：
文献类型：
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作者：
Omar Aloui;J. Flores;David Orden;L. Rhode-Barbarigos
自张拉整体概念提出以来，张拉整体结构的拓扑结构和找形问题得到了广泛的研究。然而，这些研究大多是分开讨论拓扑和形式，前者代表了刚性理论和图论的研究重点，而后者则引起了结构工程师的关注。本文介绍了一种用于空间张拉整体体系的组合拓扑和找形的仿生方法。张拉整体细胞是一种基本的无限刚性自应力结构，已被证明可以构成任何张拉整体，它通过粘结和融合的形态发生机制被用来产生更复杂的张拉整体结构。还提供了一种用于构建描述自应力空间的基础的方法。通过自应力的定义，细胞形态发生法可以综合考虑设计因素，如所需的形状或节点和构件的数量，提供极大的灵活性和对所产生的张拉整体结构的控制。
The topology and form finding of tensegrity structures have been studied extensively since the introduction of the tensegrity concept. However, most of these studies address topology and form separately, where the former represented a research focus of rigidity theory and graph theory, while the latter attracted the attention of structural engineers. In this paper, a biomimetic approach for the combined topology and form finding of spatial tensegrity systems is introduced. Tensegrity cells, elementary infinitesimally rigid self-stressed structures that have been proven to compose any tensegrity, are used to generate more complex tensegrity structures through the morphogenesis mechanisms of adhesion and fusion. A methodology for constructing a basis to describe the self-stress space is also provided. Through the definition of self-stress, the cellular morphogenesis method can integrate design considerations, such as a desired shape or number of nodes and members, providing great flexibility and control over the tensegrity structure generated.