This report summarizes the Truss Braced Wing (TBW) work accomplished by the Boeing Subsonic Ultra Green Aircraft Research (SUGAR) team, consisting of Boeing Research and Technology, Boeing Commercial Airplanes, General Electric, Georgia Tech, Virginia Tech, NextGen Aeronautics, and Microcraft. A multi-disciplinary optimization (MDO) environment defined the geometry that was further refined for the updated SUGAR High TBW configuration. Airfoil shapes were tested in the NASA TCT facility, and an aeroelastic model was tested in the NASA TDT facility. Flutter suppression was successfully demonstrated using control laws derived from test system ID data and analysis models. Aeroelastic impacts for the TBW design are manageable and smaller than assumed in Phase I. Flutter analysis of TBW designs need to include pre-load and large displacement non-linear effects to obtain a reasonable match to test data. With the updated performance and sizing, fuel burn and energy use is reduced by 54% compared to the SUGAR Free current technology Baseline (Goal 60%). Use of the unducted fan version of the engine reduces fuel burn and energy by 56% compared to the Baseline. Technology development roadmaps were updated, and an airport compatibility analysis established feasibility of a folding wing aircraft at existing airports.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Subsonic Ultra Green Aircraft Research


    Beteiligte:
    Bradley M. K. (Autor:in) / Droney C. K. (Autor:in) / Allen T. J. (Autor:in)

    Erscheinungsdatum :

    2015


    Format / Umfang :

    378 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Subsonic Ultra Green Aircraft Research

    M. K. Bradley / C. K. Droney | NTIS | 2011


    Subsonic Ultra Green Aircraft Research

    Bradley, Marty K. / Droney, Christopher K. | NTRS | 2011


    Subsonic Ultra Green Aircraft Research

    Bradley, Marty K. / Droney, Christopher K. / Allen, Timothy J. | NTRS | 2015


    Subsonic Ultra Green Aircraft Research: Phase 2

    Bradley M. K. / Droney C. K. | NTIS | 2015


    Subsonic Ultra Green Aircraft Research: Phase 2

    Bradley, Marty K. / Droney, Christopher K. | NTRS | 2015