In the Subsonics Rotary Wing (SRW) Project being funded for propulsion work at NASA Glenn Research Center, performance of the propulsion system is of high importance. In current rotorcraft drive systems many gearing components operate at high rotational speed (pitch line velocity > 24000 ft/ min). In our testing of high speed helical gear trains at NASA Glenn we have found that the work done on the air - oil mist within the gearbox can become a significant part of the power loss of the system. This loss mechanism is referred to as windage. The effort described in this presentation is to try to understand the variables that affect windage, develop a good experimental data base to validate, the analytical project being conducted at Penn State University by Dr. Rob Kunz under a NASA SRW NRA. The presentation provides an update to the status of these efforts.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Gear Windage Modeling Progress - Experimental Validation Status


    Beteiligte:
    Kunz, Rob (Autor:in) / Handschuh, Robert F. (Autor:in)

    Erscheinungsdatum :

    07.10.2008


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Gear Windage: A Review

    Eastwick, Carol N. | Online Contents | 2008


    High-speed gear windage

    Dawson, P.H. | Tema Archiv | 1988


    Modelling windage power loss from an enclosed spur gear

    Al-Shibl, K. | Online Contents | 2007


    Experimental Windage Studies for High Speed Alternators

    S. H. Gorland / E. E. Kempke | NTIS | 1971


    Experimental windage studies for high speed alternators

    Gorland, S. H. / Kempke, E. E. | NTRS | 1971