Colloquium: Jean-Daniel Crepy-Marglais (Space Flight)

13 december 2018 09:00 - Locatie: Lecture Hall C, Faculty of Aerospace Engineering, Kluyverweg 1, Delft.

Development of a Robust and Combined Controller for On-Orbit Servicing Missions

Nowadays, once a satellite is launched, it is considered as out of range forever. This observation may soon no longer be valid thanks to on-orbit servicing. However, its complexity makes it highly challenging on many aspects but using a robotic arm is the most investigated technology to achieve the berthing of two satellites in orbit. This research project aims at developing a robust controller for the deployment of a robotic arm mounted on a servicer satellite until it reaches a handle on the target satellite. While operating the space manipulator, the combined control of both the manipulator and the spacecraft base could bring robotic on-orbit servicing one step closer to reality. A model of the dynamics of the system was first developed before being used to design a robust controller. The latter was then implemented in a simulator developed at the German Aerospace Center and tested under mission constraints.