The dimensions of aerobrakes and associated heat shields are calculated as a fraction of the vehicle mass required for a high-velocity manned Mars entry. The entry speed and deceleration limit are assumed to be 8.6 km/sec and 5 earth g, respectively, to consider vehicles with low lift-drag ratio (L/D) and ballistic coefficients of 100 and 200 kg/sq m, as well as a vehicle with a medium L/D and a ballistic coefficient of 375 kg/sq m. The aerobrake mass plus the heat shield divided by an optimized, blunt-shaped vehicle's total mass is 15 and 13 percent for ballistic coefficients of 100 and 200 kg/sq m, respectively. For a winged vehicle the mass fraction is 17 percent because the higher ballistic coefficient requires more thermal protection to account for the greater temperatures generated. It is concluded that aerobraking is more efficient than propulsive braking because the mass fraction for a propulsive system would be 4 or 5 times greater than those calculated for aerobraking.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Aerobrake design studies for manned Mars missions


    Beteiligte:
    Tauber, M. (Autor:in) / Chargin, M. (Autor:in) / Henline, W. (Autor:in) / Hamm, K. R., Jr. (Autor:in) / Miura, H. (Autor:in) / Chiu, A. (Autor:in) / Yang, L. (Autor:in)

    Erscheinungsdatum :

    01.06.1991


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Aerobrake design studies for manned Mars missions

    TAUBER, M. / CHARGIN, M. / HENLINE, W. et al. | AIAA | 1991


    Aerobrake Design Studies for Manned Mars Missions

    Tauber, M. | Online Contents | 1993


    Aerobrake design studies for manned Mars missions

    Tauber, M. / Chargin, M. / Henline, W. et al. | AIAA | 1993


    Manned Mars aerobrake vehicle design issues

    Freeman, Delma C., Jr. / Powell, Richard W. / Braun, Robert D. | NTRS | 1992


    Delta II-launched Mars aerobrake missions

    BAROCELA, EDWARD / WEBER, DARRELL / GARVEY, JOHN | AIAA | 1991