Pin joints are found in many large articulating structures. They tend to be under high load and articulate slowly; so, the joints typically operate in the boundary or mixed lubrication regimes. This means that the operating torque depends on the respective proportions of liquid and solid contact between the joint mating faces. In this article, a mixed lubrication model of a grease-lubricated landing gear joint is established to determine a theoretical Stribeck curve, frictional torque and lubricant film thickness under different loads. Parameters describing pin joint working conditions, geometry, lubricant properties and pin/bush texture are used. The model can also predict the proportion of the load that is supported by contacting asperities and lubricant film. The changing proportions of these two parts indicate transformations between different lubrication regimes. Experiments on an instrumented pin joint have been carried out to compare with the predicted friction and torque performance. Theoretical calculation results show good consistency with experimental plots at high load. But under low load, the real friction between pin and bush is significantly lower than theoretical predictions.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Model and experiments to determine lubricant film formation and frictional torque in aircraft landing gear pin joints


    Beteiligte:
    Zhu, J. (Autor:in) / Pugh, S. (Autor:in) / Dwyer-Joyce, R.S. (Autor:in)


    Erscheinungsdatum :

    2012


    Format / Umfang :

    13 Seiten, 13 Bilder, 3 Tabellen, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    AIRCRAFT LANDING GEAR TORQUE LINK ASSEMBLY

    CHAUHAN MANISH | Europäisches Patentamt | 2022

    Freier Zugriff

    AIRCRAFT LANDING GEAR TORQUE LINK ASSEMBLY

    CHAUHAN MANISH | Europäisches Patentamt | 2024

    Freier Zugriff

    AIRCRAFT LANDING GEAR TORQUE LINK ASSEMBLY

    CHAUHAN MANISH | Europäisches Patentamt | 2022

    Freier Zugriff

    AIRCRAFT LANDING GEAR TORQUE LINK ASSEMBLY

    CHAUHAN MANISH | Europäisches Patentamt | 2024

    Freier Zugriff

    Aircraft landing gear torque link assembly

    MANISH CHAUHAN | Europäisches Patentamt | 2023

    Freier Zugriff