Innovative solar system exploration missions require ever larger velocity increments and thus ever more demanding propulsion capabilities. Using for those high-energy missions the stateof-the-art technique of chemical propulsion in combination with (eventually multiple) gravity assist maneuvers results in long, complicated, and inflexible mission profiles. Low-thrust propulsions systems can sig...

A new approach for the identification of friction and rigid-body dynamics of complex parallel kinematical structures is presented in this paper. The approach is based on optimal excitation trajectories with the linear estimation theory as the mathematical background. The trajectories are bounded in such a way that they are easy to be fit into the small and hard constrained workspace of PKM.

Time discrete systems determined by systems of difference equations are considered. The characterizations of their optimal trajectories with given starting and final states is studied. An algorithm based on dynamic programming technique for determining such trajectories is proposed. In additional multicriterion version for considered control model is formulated and a general algorithm for deter...