Future space missions will depend more on low-thrust propulsion (such as ion engines) thanks to its high specific impulse. Yet, the design of low-thrust trajectories is complex and challenging. Third-body perturbations often dominate the thrust, and a significant change to the orbit requires a long duration of thrust. In order to guide the early design phases, we have developed an efficient and efficacious method to obtain approximate propellant and flight-time requirements (i.e., the Pareto front) for orbit transfers. A search for the Pareto-optimal trajectories is done in two levels: optimal thrust angles and locations are determined by Q-law, while the Q-law is optimized with two evolutionary algorithms: a genetic algorithm and a simulated-annealing-related algorithm. The examples considered are several types of orbit transfers around the Earth and the asteroid Vesta.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Design and Optimization of Low-thrust Orbit Transfers Using Q-law and Evolutionary Algorithms


    Contributors:

    Conference:

    IEEE Aerospace Conference ; 2005 ; Big Sky, MT, United States


    Publication date :

    2005-03-05


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English




    Design and Optimization of Low-thrust Orbit Transfers

    Lee, S. / von Allmen, P. / Fink, W. et al. | British Library Conference Proceedings | 2005


    Design and optimization of low-thrust orbit transfers

    Seungwon Lee, / von Ailmen, P. / Fink, W. et al. | IEEE | 2005


    Optimal Continuous Thrust Orbit Transfers

    Thorne, J. D. / Hall, C. D. / American Astronautical Society et al. | British Library Conference Proceedings | 1996


    Optimization of low-thrust orbit transfers with constraints

    Ulybyshev, Yu. P. | Springer Verlag | 2012


    Optimization of low-thrust orbit transfers with constraints

    Ulybyshev, Yu. P. | Online Contents | 2012