Feedback Slew Algorithms for Prolate Spinners Using Single–Thruster
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Si, Juntian, Gao, Yang and Chanik, Abadi (2017) Feedback Slew Algorithms for Prolate Spinners Using Single–Thruster Acta Astronautica, 144. pp. 39-51.
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Feedback Slew Algorithms for Prolate Spinners Using Single-Thruster.pdf - Accepted version Manuscript Download (1MB) | Preview |
Abstract
A number of low-cost open-loop slew control algorithms have been developed for prolate spinning spacecraft using single-thruster actuation. Robustness analysis indicates that these algorithms have high sensitiveness over thruster firing time error, spacecraft inertia error, and especially spin rate perturbations. This paper proposed two novel feedback slew algorithms, Feedback Half-Cone and Feedback Sector-Arc Slew, built on the existing open-loop algorithms and they use attitude and angular velocity feedback to improve robustness. As presented, after the first thruster actuation initiate the spin-axis precession, the feedback slew algorithms take attitude and spin-rate feedback to estimate the angular momentum and predict the spin-axis attitude during the slew. These techniques contribute to improve the cancelation thrust impulse accuracy and reduce the final nutation error. Simulations for a Penetrator mission scenario validate these feedback algorithms and show their slew performance and robustness over the perturbations mentioned above. It is proved that the attitude feedback greatly improves the slew accuracy and robustness.
| Item Type: | Article | ||||||||||||
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| Divisions : | Faculty of Engineering and Physical Sciences > Electronic Engineering | ||||||||||||
| Authors : |
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| Date : | 2 December 2017 | ||||||||||||
| DOI : | 10.1016/j.actaastro.2017.11.044 | ||||||||||||
| Copyright Disclaimer : | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | ||||||||||||
| Uncontrolled Keywords : | prolate penetrator, attitude control, feedback control, attitude dynamics, spinning spacecraft, single thruster | ||||||||||||
| Depositing User : | Melanie Hughes | ||||||||||||
| Date Deposited : | 16 Jan 2018 16:13 | ||||||||||||
| Last Modified : | 02 Dec 2018 02:08 | ||||||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/845627 |
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