Dual-wheeled main landing gears may encounter shimmy vibration under adverse conditions. An analytical investigation is made of energy dissipation from Coulomb friction in oleo main bearings and pressure seal and the contribution to shimmy damping. It is stabilizing but highly variable. Under favorable conditions it exceeds 10 % of critical viscous damping which would rapidly suppress vibration. Under severe conditions, it may be less than 1 %. This may not overcome destabilizing tire dynamics and shimmy incidents are more likely to occur. Strut closure rate and transient disturbances contribute to the loss of damping.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    An Analytical Investigation of Damping of Landing Gear Shimmy


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Feld, Denis J. (Autor:in)

    Kongress:

    Aerospace Technology Conference and Exposition ; 1990



    Erscheinungsdatum :

    01.09.1990




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Influence of damping characteristics to landing gear shimmy

    Jinwu, X. / Dongmei, Y. | British Library Online Contents | 2005


    Landing gear with caster and variable shimmy damping

    ISAAC MARK LORING | Europäisches Patentamt | 2025

    Freier Zugriff

    LANDING GEAR WITH CASTER AND VARIABLE SHIMMY DAMPING

    ISAAC MARK LORING | Europäisches Patentamt | 2025

    Freier Zugriff

    Improved Landing Gear Shimmy Model

    Davidson, G. Westly | SAE | 2015


    Helicopter Landing Gear Shimmy Simulation

    Butts, D. / Kogan, A. / Herce, D. et al. | British Library Conference Proceedings | 2010