The purpose of this paper is to study the application of the planetary aerogravity-assist (AGA) technique to the interplanetary transfer mission with low-thrust engine, and the design and optimization approach of low-thrust AGA trajectory.

    Design/methodology/approach

    In the research, the transfer trajectory with planetary AGA maneuver is analyzed first, the maximum atmospheric turn angle and the matching condition for AGA trajectory is derived out, which is the significant principle for AGA trajectory design and studies. Then, a design and optimization approach for interplanetary low-thrust trajectory with AGA maneuver is developed. The complicated design problem is transformed into a parameter optimization problem with multiple nonlinear constraints by using calculus of variations and the matching condition associated with AGA trajectory. Furthermore, since the optimization problem is very sensitive to the launch date and AGA maneuver parameters, three ordinal sub-problems are reformulated to reduce the sensitivity. Finally, a direct/indirect hybrid approach is utilized to solve these sub-problems.

    Findings

    The planetary AGA maneuver is feasible and effective in decreasing the propellant consumption and flight time for interplanetary low-thrust mission and provides better performance than pure planetary gravity assist. Moreover, the proposed approach is effective to design and optimize the low-thrust transfer mission with AGA maneuver.

    Research limitations/implications

    In further research, some simple preliminary design approaches for interplanetary low-thrust trajectory with AGA maneuver are required to developed, which can provide a good initial conjecture for a hybrid optimization algorithm.

    Originality/value

    The paper provides the matching condition for interplanetary AGA transfer trajectory by analyzing some characteristics of planetary AGA maneuver, and presents an effective approach to design and optimize interplanetary low-thrust AGA trajectory.


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    Title :

    Design and optimization of interplanetary low-thrust trajectory with planetary aerogravity-assist maneuver


    Contributors:
    Shang, Haibin (author) / Cui, Pingyuan (author) / Luan, Enjie (author)


    Publication date :

    2008-01-25


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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