The control of spacecraft displaying non-negligible interaction between control and structural deformation is discussed. The earliest experiences with performance degradation due to control/structure interaction are recalled. The interaction problem is schematized in terms of spillover between design model and residual model of the spacecraft dynamics. Robust control for spacecraft stabilization is described, as well as control for spacecraft performance. The latter may induce instability, and therefore robustness enhancement is called for. Various alternative approaches are outlined. Modifications of mechanical system properties as well as of control algorithms will be with the designer well into the spacecraft's active life. Therefore, continued end to end simulations involving updated truth models and updated control algorithms are required for continued and successful confrontation with physical reality.
Control Law Synthesis for Large Flexible Spacecraft
1991
55 pages
Report
No indication
English
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