Fuel/Time Optimal Control of Flexible Structures: A Frequency Domain Approach


Hartmann, R., & Singh, T.


Journal of Vibration and Control, 5(5), 795-817, 1999.


This paper considers the design of open-loop fuel/time optimal controllers for flexible space structures 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.

   Author = {R. Hartmann, T. Singh},
   Journal = {Journal of Vibration and Control},
   Month = {Sept.},
   Pages = {795-817},
   Title = {Fuel/Time Optimal Control of Flexible Structures: A Frequency Domain Approach},
   Volume = {5},
   Number = {5},
   Year = {1999}