Direct accounting for durability rarely finds its way into multidisciplinary optimization. Though reduction of loads by some means can certainly have a beneficial influence on the fatigue performance of a structure, changes in load levels are not a direct measure of the influence of design changes on fatigue performance. In this paper, an assessment is made of an approach to the calculation of design sensitivities of a fatigue performance index namely, number of damaging cycles to failure. The approach makes use of analytical sensitivities of structural dynamic response, and a standard approach to the calculation of fatigue performance. The method is demonstrated using a simple nine degree-of-freedom structural model of an automobile in a conceptual representation of the industrial practice of road testing and road simulation. Results suggest that the estimates of changes in fatigue life are of sufficient quality for typical fatigue life evaluations, and open the door for the incorporation of a direct me asure of fatigue performance in formal structural optimization.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Design sensitivities of fatigue performance and structural dynamic response in an automotive application


    Beteiligte:
    Zeiler, T.A. (Autor:in) / Barkey, M.E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2001


    Format / Umfang :

    7 Seiten, 13 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Sensitivities and Integrated Aerodynamic-Structural Optimal Design

    Arsuffi, G. / Mastroddi, F. / Morino, L. et al. | British Library Conference Proceedings | 1996


    Design Sensitivities

    Sóbester, András / Forrester, Alexander I J | Wiley | 2014




    Sensitivities and Integrated Aerodynamic-Structural Optimal Design

    Arsuffi, G. / Mastroddi, F. / Morino, L. | British Library Online Contents | 1996