Tension Aligned Deployable Structures for Large 1-D and 2-D Array Applications

A concept is presented for the packaging and deployment of large tension aligned 1-D and 2-D arrays composed of hard panels with a finite thickness. The concept involves three novel features which together act to provide an array with unique packaging, deployment, and operational capabilities. First, a linear array of panels are supported only at the ends and require no continuous attachment along the support truss. This simplifies integration and enables modular development and use of heritage hardware. Also, since the panels are only supported at the ends and are aligned by tension, the array is isolated from the mechanical and thermal distortions of the truss. Second, the panels are attached to each other with revolute joints to simplify deployment and required mechanisms. Third, a pattern of hinges has been developed that allows a direct extension of the concept to a 2-D array of hard panels. Simple models are presented that demonstrate the 2-D array folding and deployment concept. Frequency analyses are presented of the 1-D and 2-D arrays that provide a perspective of their structural performance.