The influence of big-end bore fretting on connecting rod fatigue fracture is investigated. A finite element model, including rod-bearing contact interaction, is developed to simulate a fatigue test rig where the connecting rod is subjected to an alternating uniaxial load. Comparison of the model results with a rod fracture from the fatigue rig shows good correlation between the fracture location and the peak ‘Ruiz’ criterion, rather than the peak tensile stress location, indicating the potential of fretting to initiate a fatigue fracture and the usefulness of the ‘Ruiz’ criterion as a measure of location and severity.The model is extended to simulate a full engine cycle using pressure loads from a bearing EHL analysis. A fretting map and a ‘Ruiz’ criterion map are developed for the full engine cycle, giving an indication of a safe ‘Ruiz’ level from an existing engine which has been in service for more than 5 years.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The Prediction of Connecting Rod Fretting and Fretting Initiated Fatigue Fracture


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Merritt, David (Autor:in) / Zhu, Guangrui (Autor:in)

    Kongress:

    2004 Powertrain & Fluid Systems Conference & Exhibition ; 2004



    Erscheinungsdatum :

    25.10.2004




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The prediction of connecting rod fretting and fretting initiated fatigue fracture

    Merritt,D. / Zhu,G. / Dana Glacier Vandervell Bearings,GB et al. | Kraftfahrwesen | 2004




    Prediction of Fretting Fatigue in Engine Cylinder Block

    Shi, Chao / Sato, Kenji / Hamakawa, Takeru et al. | British Library Conference Proceedings | 2016


    Prediction of Fretting Fatigue in Engine Cylinder Block

    Shi, Chao / Sato, Kenji / Takahashi, Shinichi et al. | SAE Technical Papers | 2016