Title :
Closed-form Grammians and model reduction for flexible space structures
Author :
Williams, Trevor
Author_Institution :
NASA Langley Res. Center, Hampton, VA, USA
Abstract :
Analytical expression are derived for the Grammians of a model in modal coordinates for the dynamics of a flexible space structure (FSS). These exact results provide insight into the dynamics of such systems and reduce the known approximate expressions in the case of lightly damped, widely separated modes. A novel algorithm is outlined that uses these to compute a dominant reduced-order model for such a system in an efficient manner
Keywords :
aerospace control; dynamics; Grammians; aerospace control; dynamics; flexible space structures; model reduction; reduced-order model; Actuators; Algorithm design and analysis; Controllability; Flexible structures; Frequency selective surfaces; Linear systems; NASA; Observability; Reduced order systems; Space vehicles;
Conference_Titel :
Decision and Control, 1988., Proceedings of the 27th IEEE Conference on
Conference_Location :
Austin, TX
DOI :
10.1109/CDC.1988.194500
