An innovative, lightweight method, using an inflatable ballute, to increase aerobraking drag and potentially reduce the size of spacecraft (S/C) payloads, is presented. Computational fluid dynamics (CFD) calculations (using the entry environment and trajectory for a Mars 03 entry vehicle) were performed for a generic torroidal-shaped ballute, attached to a baseline S/C configuration. Results from the CFD analysis indicate a maximum heating intensity of 35 W/cm/sup 2/ occurred at the aeroshell-ballute joint interface. A thermal model was developed, incoporating the CFD results, which was used to design a tailored thermal protection system (TPS). The TPS consisted of a multilayered configuration for the higher heat flux area and a fewer-layer configuration for areas with lower heat flux. The total mass of the tailored TPS for the entire ballute surface was about 43% lighter than a more traditional monolithic heat shield design. Lockheed Martin, along with L'Garde, Inc., designed and fabricated a subscale model of an inflatable ballute attached to a rigid aeroshell, to demonstrate ballute bladder stowage and inflation mechanics.


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    Titel :

    Attached inflatable ballute for spacecraft deceleration


    Beteiligte:
    Kustas, F.M. (Autor:in) / Rawal, S.P. (Autor:in) / Wilkockson, W.H. (Autor:in) / Edquist, C.T. (Autor:in) / Thornton, J.M. (Autor:in) / Giellis, R.T. (Autor:in)


    Erscheinungsdatum :

    2000-01-01


    Format / Umfang :

    647319 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Attached Inflatable Ballute for Spacecraft Deceleration

    Kustas, F. M. / Rawal, S. P. / Willcockson, W. H. et al. | British Library Conference Proceedings | 2000


    Inflatable decelerator ballute for planetary exploration spacecraft

    Kustas, Frank / Rawal, Suraj / Willcockson, William et al. | AIAA | 2000


    AEROELASTIC SIMULATION TOOL FOR INFLATABLE BALLUTE AEROCAPTURE

    Liever, P. A. / Sheta, E. F. / Habchi, S. D. | NTRS | 2006


    Evaluation of High-Temperature Multilayer Insulation for Inflatable Ballute

    Frank M. Kustas / Suraj P. Rawal / William H. Willcockson et al. | AIAA | 2001