Abstract
This paper considers the design of open-loop fuel/time optimal controllers for flexible space struc tures using a frequency domain approach. The control system consists of a time-delay filter whose output signal is the optimal control profile when it is subject to a step input. A constrained parameter optimization problem is formulated to minimize a weighted combination of fuel consumed and total maneuver time for a rest-to-rest maneuver. The parameters to be optimized for are the delays of a time-delay filter. The number of switches of the fuel/time optimal control profile is shown to be a function not only of number of flexible modes but also of the weighting parameter, which is illustrated via numerical examples.
Get full access to this article
View all access options for this article.