The design of lightweight automotive structures has become a prevalent practice in the automotive industry. This study focuses on design optimization of an automobile torque arm subjected to cyclic loading. Starting from an available initial design, the shape of the torque arm is optimized for minimum weight such that the fatigue life of the torque arm does not fall below that of the initial design and the maximum von Mises stress developed in the torque arm does not exceed that of the initial design. The stresses are computed using ANSYS finite element software, and the fatigue life is calculated using the Smith–Watson–Topper model. Surrogate-based optimization approach is used to reduce the computational cost. Optimization results based on global surrogate modeling and successive surrogate modeling approaches are compared. It is found that the successive surrogate modeling approach results in 28.7% weight reduction for the torque arm, whereas the global surrogate modeling approach results in 25.7% weight saving for the torque arm.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Design optimization of an automobile torque arm using global and successive surrogate modeling approaches


    Beteiligte:
    Acar, Erdem (Autor:in) / Tüten, Nahide (Autor:in) / Güler, Mehmet Ali (Autor:in)


    Erscheinungsdatum :

    01.05.2019


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






    Surrogate Approaches for Aerodynamic Section Performance Modeling

    Keane, Andy J. / Voutchkov, Ivan I. | AIAA | 2020


    Adaptive surrogate modelling for global optimization

    DWIGHT, R. P. / BAAR, J. DE / AZIJLI, I. | TIBKAT | 2018


    Cam-Phasing Optimization Using Artificial Neural Networks as Surrogate Models-Maximizing Torque Output

    Wu, Bin / Kramer, Denise M. / Ohl, Gregory L. et al. | SAE Technical Papers | 2005