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Deployable Tensegrity Reflectors for Small Satellites
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tibert, A. G. Pellegrino, Sergio |
| Copyright Year | 2002 |
| Abstract | Future small satellite missions require low-cost, precision reflector structures with large aperture that can be packaged in a small envelope. Existing furlable reflectors form a compact package which — although narrow— is too tall for many applications. An alternative approach is proposed, consisting of a deployable ''tensegrity'' prism forming a ring structure that deploys two identical cable nets (front and rear nets) interconnected by tension ties; the reflecting mesh is attached to the front net. The geometric configuration of the structure has been optimized to reduce the compression in the struts of the tensegrity prism. A small-scale physical model has been constructed to demonstrate the proposed concept. A preliminary design o fa3m diameter, 10 GHz reflector with a focal length to diameter ratio of 0.4 that can be packaged within an envelope of 0.1 × 0.2 × 0.8 m 3 is presented. Nomenclature a = radius of tube cross section A = area b = number of bars D = aperture diameter E = Young's Modulus F = focal length H = depth j = number of joints L = triangle side length Le = effective length m = number of independent mechanisms N = mesh tension per unit length r = radius of gyration R = radius of approximating sphere s = number of independent states of self-stress T tension δrms = root-mean-square surface error θ = relative rotation between nets ρ = density |
| Starting Page | 701 |
| Ending Page | 709 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| Volume Number | 39 |
| Alternate Webpage(s) | http://www.its.caltech.edu/~sslab/PUBLICATIONS/Deployable%20tensegrity%20reflectors%20for%20small%20satellites_2001.pdf |
| Alternate Webpage(s) | http://www-civ.eng.cam.ac.uk/dsl/publications/tensereflect.pdf |
| Alternate Webpage(s) | https://doi.org/10.2514/2.3867 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
