Low-thrust trajectory design is tightly coupled with spacecraft systems design. In particular, the propulsion and power characteristics of a low-thrust spacecraft are major drivers in the design of the optimal trajectory. Accurate modeling of the power and propulsion behavior is essential for meaningful low-thrust trajectory optimization. In this work, we discuss new techniques to improve the accuracy of propulsion modeling in low-thrust trajectory optimization while maintaining the smooth derivatives that are necessary for a gradient-based optimizer. The resulting model is significantly more realistic than the industry standard and performs well inside an optimizer. A variety of deep-space trajectory examples are presented.


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    Titel :

    Improved Propulsion Modeling for Low-Thrust Trajectory Optimization


    Beteiligte:
    J. M. Knittel (Autor:in) / J. A. Englander (Autor:in) / M. T. Ozimek (Autor:in) / J. A. Atchison (Autor:in) / J. J. Gould (Autor:in)

    Erscheinungsdatum :

    2017


    Format / Umfang :

    19 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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