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Proceedings Paper

Automatically Reconfigurable Control For Rapid Retargeting Of Flexible Pointing Systems
Author(s): Thomas A. W. Dwyer III
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Paper Abstract

A reconfigurable nonlinear control system design methodology is proposed in this report, to automatically correct computed slew torque commands of space-based pointing systems, for the effects of slew-induced structural deformations. The torque corrections can be generated either from structural sensors, or else from higher derivatives of commanded boresight angular rates. In the latter case, structural control forces must be likewise generated from higher angular slew rates, to shape the slew-induced structural excitation. Automatic selection of slew torque. and structural actuator correction signals, as well as automatic correction for tracking error gains can be managed by a supervisory controller that tests required effort levels against actuator ratings. It is also indicated how translations during slews can be likewise corrected. The simulated implementation of such a control system for a space-based laser beam expander has been implemented on a Silicon Graphics IRIS computer system. A videotape of such a simulation as well as hardcopy are available.

Paper Details

Date Published: 31 October 1987
PDF: 8 pages
Proc. SPIE 0851, Space Station Automation III, (31 October 1987); doi: 10.1117/12.942917
Show Author Affiliations
Thomas A. W. Dwyer III, University of Illinois (United States)

Published in SPIE Proceedings Vol. 0851:
Space Station Automation III
Wun C. Chiou Sr., Editor(s)

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