In this paper, resonance durability analysis is performed for the fatigue life assessment of suspension component considering the dynamic effect of vehicle system. In the resonance durability analysis, the frequency response data and the dynamic load data of frequency domain are used. The multi-body dynamic analysis, finite element analysis and fatigue life prediction method are applied for the resonance durability analysis. To obtain the dynamic load history, the computer simulations running over typical pothole and Belgian road are carried out respectively by utilizing multi-body dynamic vehicle model. The durability estimation for the rear suspension system of the small-sized passenger car is performed by using the resonance durability analysis technique, and the estimation result is compared with the quasi-static durability analysis result. The study shows that the fatigue life considering the resonance frequency of vehicle system can be effectively estimated in early design stage.


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    Title :

    Fatigue Analysis of Automotive Suspension System Considering Dynamic Effect


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Body Engineering Conference & Exposition ; 2003



    Publication date :

    2003-10-27




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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