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Conference Papers Year : 2012

Modelling and Optimal Control of a Docking Maneuver with an Uncontrolled Satellite

Abstract

Capturing disused satellites in orbit and their controlled reentry is the aim of the DEOS space mission. Satellites that ran out of fuel or got damaged pose a threat to working projects in orbit. Additionally, the reentry of such objects endangers the population as the place of impact cannot be controlled anymore. This paper demonstrates the modelling of a rendezvous szenario between a controlled service satellite and an uncontrolled target. The situation is modelled via first order ordinary differental equations where a stable target is considered. In order to prevent a collision of the two spacecrafts and to ensure both satellites are docked at the end of the maneuver, additional state constraints, box contraints for the control and a time dependent rendezvous condition for the final time are added. The problem is formulated as an optimal control problem with Bolza type cost functional and solved using a full discretization approach in AMPL/IpOpt. Last, simulation results for capturing a tumbling satellite are given.

Dates and versions

hal-00725005 , version 1 (23-08-2012)

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Cite

Johannes Michael, Kurt Chudej, Jürgen Pannek. Modelling and Optimal Control of a Docking Maneuver with an Uncontrolled Satellite. 77th Vienna International Conference on Mathematical Modelling, 2012, Vienna, Austria. pp.1135-1140, ⟨10.3182/20120215-3-AT-3016.00201⟩. ⟨hal-00725005⟩

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