Square deployable frames for space applications. Part 2: Realization
Square deployable frames for space applications. Part 2: Realization
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DOI：
10.1243/09544100jaero100
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发表时间：
2007-01
期刊：
影响因子：
--
通讯作者：
Y. Chen;Z. You
中科院分区：
文献类型：
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作者：
Y. Chen;Z. You
摘要在一篇姊妹论文中，作者用数学方法证明了三维4R过约束班尼特连杆机构有一种可供选择的形式，使它可以完全折叠起来。在本文中，这样的结构的建设的方法。为了设计的目的，一组设计参数，可用于快速原型，因为它们是密切联系在一起的最终扩展配置。推导了运动学家常用的描述班尼特机构的设计参数与几何参数之间的关系。此外，单个紧凑折叠班尼特连杆的概念已经扩展到其中班尼特连杆彼此嵌套的网格。新部件保留了单个连杆的所有通用特征。制作了一系列物理模型，成功地演示了这一概念。
Abstract In a sister paper, the authors have proved mathematically that the three-dimensional 4R overconstrained Bennett linkage has an alternative form allowing it to be folded up completely. In this paper, the ways of building such structures are shown. For design purposes, a set of design parameters is introduced that could be used for rapid prototyping because they are closely linked with the final expanded configuration. The relationships between the design and geometrical parameters, commonly used to describe the Bennett linkages by kinematicians, have been derived. Moreover, the concept of a single compact folding Bennett linkage has been extended to a grid in which the Bennett linkages are nested within each other. The new assembly retains all the common features of the single linkage. A series of physical models were made, which successfully demonstrate the concept.