Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/2858
Title: Design optimization of an automobile torque arm using global and successive surrogate modeling approaches
Authors: Acar, Erdem
Ten, Nahide
Güler, Mehmet Ali
Keywords: Fatigue
finite element analysis
optimization
surrogate model
global surrogate modeling
successive surrogate modeling
Issue Date: May-2019
Publisher: SAGE Publications Ltd.
Source: Acar, E., Tüten, N., and Güler, M. A. (2019). Design optimization of an automobile torque arm using global and successive surrogate modeling approaches. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 233(6), 1453-1465.
Abstract: 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.
URI: https://hdl.handle.net/20.500.11851/2858
https://journals.sagepub.com/doi/10.1177/0954407018772739
ISSN: 0954-4070
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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