You, Z. and Pellegrino, S. (1997) Cable-Stiffened Pantographic Deployable Structures Part 2: Mesh Reflector. AIAA Journal, 35 (8). pp. 1348-1355. ISSN 0001-1452. http://resolver.caltech.edu/CaltechAUTHORS:YOUaiaaj97
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The general concept of deployable structures based on pantographs that are deployed and stiffened by means of cables is applied to the design of the support structure for a large mesh reflector. The two main components of this structure are a cable-stiffened pantographic ring that deploys and pretensions a cable network that, in turn, provides a series of stiff, geometrically accurate support points to which a reflective wire mesh or flexible membrane would be connected. The pantographic ring is a highly redundant structure with an internal mechanism that permits synchronous deployment without any strain in the rods. The geometric conditions that have to be satisfied in order for an n-sided ring to fold without any strain are investigated, including the effects of joint size. An experimental model has been designed and tested. In the folded configuration, it has a diameter of 0.6 m and height of 1.2 m; in the deployed configuration, it has a diameter of 3.5 m. Stiffness and deployment tests on this model have shown its behavior to be linear and the maximum shape error to be ±0.3 mm.
|Additional Information:||Copyright ©1997 by S. Pellegrino and Z. You. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Received Feb. 1, 1996; revision received March 24, 1997; accepted for publication May 5, 1997. Financial support from the Engineering and Physical Sciences Research Council (Research Grant GR/F57113) is gratefully acknowledged. We are grateful to R.J. Denston for technical assistance.|
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|Deposited On:||17 Jul 2008 21:43|
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