Different configurations of Aeroassisted Orbital Transfer Vehicles (AOTV) are investigated in the context of their performance potential. Evaluating the performance of a candidate vehicle takes into consideration the efficiency of trajectory maneuvers as well as the loads acting on the vehicle. To carry out the vehicle analysis, a computer program was developed which is capable of calculating the complete exo/endoatmospheric optimal trajectory of an AOTV. In addition to the comparative evaluation of different vehicle configurations, special interest is given to the sensitivities of vehicle performance due to inaccuracies in the physical models. For this purpose, different models were used to describe atmospheric deviations or aerodynamic uncertainties in a more or less realistic way. Graphics illustrating the complex interdependencies between trajectory optimization, state and control variables, and other parameters of influence are included.


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    Title :

    Problemloesungen fuer die Leistungsoptimierung Wiederverwendbarer Atmosphaerengestuetzter Orbittransfersysteme (Improved Methods for Reusable Aeroclassified Orbital Transfer Vehicle Optimization)


    Contributors:
    A. Daum (author)

    Publication date :

    1991


    Size :

    149 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Problemlösungen für die Leistungsoptimierung wiederverwendbarer atmosphärengestützter Orbittransfersysteme

    Daum, Alf / Institut für Chemische Antriebe und Verfahrenstechnik, Deutsche Forschungsanstalt für Luft- und Raumfahrt (DLR), Lampoldshausen | TIBKAT | 1991





    Formgedaechtnislegierungen fuer moderne Problemloesungen

    Halter,K. / Jost,N. / Stalder,J.-L. et al. | Automotive engineering | 1991