Abstract This paper presents a novel approach to the design of low-thrust trajectories, based on a first order approximated analytical solution of Gauss planetary equations. This analytical solution is shown to have a better accuracy than a second-order explicit numerical integrator and at a lower computational cost. Hence, it can be employed for the fast propagation of perturbed Keplerian motion when moderate accuracy is required. The analytical solution was integrated in a direct transcription method based on a decomposition of the trajectory into direct finite perturbative elements (DFPET). DFPET were applied to the solution of two-point boundary transfer problems. Furthermore the paper presents an example of the use of DFPET for the solution of a multiobjective trajectory optimisation problem in which both the total ΔV and transfer time are minimised with respect to departure and arrival dates. Two transfer problems were used as test cases: a direct transfer from Earth to Mars and a spiral from a low Earth orbit to the International Space Station.

    Highlights ► Accurate and fast analytical solution to low-thrust orbital dynamics. ► Development of a new direct transcription method based on perturbative approach. ► Fast solution for multiobjective trajectory optimisation problems.


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    Titel :

    Direct transcription of low-thrust trajectories with finite trajectory elements


    Beteiligte:

    Erschienen in:

    Acta Astronautica ; 72 ; 108-120


    Erscheinungsdatum :

    2011-09-12


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch







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