Desribed herein are noise attenuating ducts (100) and vehicles (190) using these ducts for environmental control systems. A duct (100) comprises an exoskeleton structure (110) and a sound-absorbing structure (120), disposed within and conforming to the exoskeleton structure (110). The exoskeleton structure (110) provides external mechanical support to the sound-absorbing structure (120) thereby helping to maintain the tubular shape of the sound absorbing structure. This external support does not interfere with the airflow inside the sound absorbing structure (120). Furthermore, the external positioning of the exoskeleton structure (110) allows the integration of various support mounting features for the installation of the duct in a vehicle (190). In some examples, the exoskeleton structure comprises a plurality of enclosed openings (116) to reduce the weight of the exoskeleton structure (110) and provide additional flexibility. Furthermore, additive manufacturing of the exoskeleton structure (110) allows achieving a monolithic structure with various features and characteristics described above.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Ducts comprising exoskeleton and sound-absorbing structures and vehicles using such ducts


    Beteiligte:
    VANDYKE BRYCE A (Autor:in) / MABEN DOUGLAS D (Autor:in) / HASTINGS DALE (Autor:in) / GMEREK MARK M (Autor:in) / HAN XIN (Autor:in)

    Erscheinungsdatum :

    2023-02-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F16L PIPES , Rohre



    DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS

    VANDYKE BRYCE A / MABEN DOUGLAS D / HASTINGS DALE et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS

    VANDYKE BRYCE A / MABEN DOUGLAS D / HASTINGS DALE et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Sound propagation in curved ducts

    MYERS, M. / MUNGUR, P. | AIAA | 1975



    Underwater sound propagation in surface ducts

    Gleaves, D.G. | Tema Archiv | 1985