Experimental verification of a simple method for accurate center of gravity determination of small satellite platforms
| Autor: | Paolo Tortora, Giacomo Curzi, Dario Modenini |
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| Přispěvatelé: | Modenini, Dario, Curzi, Giacomo, Tortora, Paolo |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Article Subject
010504 meteorology & atmospheric sciences Spacecraft Computer science business.industry lcsh:Motor vehicles. Aeronautics. Astronautics Aerospace Engineering 01 natural sciences Intersection (Euclidean geometry) Suspension (motorcycle) 010309 optics Center of gravity Cog Norm (mathematics) 0103 physical sciences Satellite Inclinometer lcsh:TL1-4050 business Algorithm 0105 earth and related environmental sciences |
| Zdroj: | International Journal of Aerospace Engineering, Vol 2018 (2018) |
| Popis: | We propose a simple and relatively inexpensive method for determining the center of gravity (CoG) of a small spacecraft. This method, which can be ascribed to the class of suspension techniques, is based on dual-axis inclinometer readings. By performing two consecutive suspensions from two different points, the CoG is determined, ideally, as the intersection between two lines which are uniquely defined by the respective rotations. We performed an experimental campaign to verify the method and assess its accuracy. Thanks to a quantitative error budget, we obtained an error distribution with simulations, which we verified through experimental tests. The retrieved experimental error distribution agrees well with the results predicted through simulations, which in turn lead to a CoG error norm smaller than 2 mm with 95% confidence level. |
| Databáze: | OpenAIRE |
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