Interest in unconventional aircraft architectures has steadily increased over the past several decades. However, each of these concepts has several technical challenges to overcome before maturing to the point of commercial acceptance. In the interim, it is important to identify any technologies that will enhance the noise reduction of conventional tube-and-wing aircraft. A technology roadmap with an assumed acoustic technology level of a 2035 entry into service is established for a large twin-aisle, tube-and-wing architecture to identify which technologies provide the most noise reduction. The noise reduction potential of the architecture relative to NASA noise goals is also assessed. The current roadmap estimates only a 30 EPNdB cumulative margin to Stage 4 for this configuration of a tube-and-wing aircraft with engines under the wing. This falls short of reaching even the 2025 Mid Term NASA goal (32 EPNdB) in the Far Term time frame. Specifically, the lack of additional technologies to reduce the aft fan noise and the corresponding installation effects is the key limitation of the noise reduction potential of the aircraft. Under the same acoustic technology assumptions, unconventional architectures are shown to offer an 8–10 EPNdB benefit from favorable relative placement of the engine when integrated to the airframe.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Far Term Noise Reduction Technology Roadmap for a Large Twin-Aisle Tube-And-Wing Subsonic Transport


    Beteiligte:
    June, Jason C. (Autor:in) / Thomas, Russell H. (Autor:in) / Guo, Yueping (Autor:in) / Clark, Ian A. (Autor:in)

    Kongress:

    AIAA/CEAS Aeroacoustics Conference ; 2019 ; Delft, Netherlands


    Erscheinungsdatum :

    2019-05-20


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    FAR TERM NOISE REDUCTION TECHNOLOGY ROADMAP FOR A LARGE TWIN-AISLE TUBE-AND-WING SUBSONIC TRANSPORT

    June, Jason / Clark, Ian / Thomas, Russell H. et al. | British Library Conference Proceedings | 2019





    FAR TERM NOISE REDUCTION ROADMAP FOR THE NASA D8 AND SINGLE-AISLE TUBE-AND-WING AIRCRAFT CONCEPTS

    Clark, Ian / Thomas, Russell H. / Guo, Yueping | British Library Conference Proceedings | 2019