Springs with low static deflection (stiffer springs for a given load) should have a more severe rig test than springs with a higher static deflection. It was theorized that the alternating to mean strain ratio increases as the spring stiffenss for a given load increases. A series of strain measurements were conducted using three different spring stiffness for two different bogie load conditions. A total of six different static deflections were measured. The measurements at the truck bogie suspension show a clear trend that the ratio of alternating to mean strain increases as the static deflection decreases. Damage calculations were conducted to compare the relative fatigue damage caused by the road inputs. This data was then used to determine the alternating to mean strain ratio for a 100,000 cycle rig test equivalent to the relative damage caused by road inputs. It was found that the lower the static deflection, the larger this ratio must be.


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    Titel :

    Bogie spring fatigue damage - a function of static displacement


    Weitere Titelangaben:

    Beschädigungen von Fahrwerksfedern infolge Materialermüdung - Eine Funktion des statischen Federwegs


    Beteiligte:
    Dudding, A.T. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1992


    Format / Umfang :

    5 Seiten, 3 Bilder, 3 Tabellen, 3 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Bogie Spring Fatigue Damage - A Function of Static Displacement

    Dudding, Ashley T. | SAE Technical Papers | 1992


    Bogie spring fatigue damage- a function of static displacement

    Dudding,A.T. / Volvo GM,US | Kraftfahrwesen | 1992


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