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Robust lightweight design and digital twins considering manufacturing quality variation and sustainability requirements

Author(s):





Medium: journal article
Language(s): Finnish
Published in: Rakenteiden Mekaniikka = Journal of Structural Mechanics, , n. 3, v. 55
Page(s): 66-80
DOI: 10.23998/rm.120693
Abstract:

In this paper, robustness optimization of a fatigue-critical welded structure with measured misalignments and a generic robust design procedure are presented. The motivation for considering uncertainties, robustness and multi-criteria decision making in engineering design comes from the increasing sustainability requirements. Lightweight design of vehicles can reduce CO2 emissions and increase energy and material efficiency, but often the fatigue of welds limits the weight reduction. The manufacturing quality affects the fatigue strength of welds, and by quantifying the manufacturing quality and using robust design methodology the increasing sustainability requirements can be met, while also considering the technical and economical constraints. The surrogate model representing the relationship between the actual, measured geometry and the fatigue life can be used as the digital twin during operation.

License:

This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met.

  • About this
    data sheet
  • Reference-ID
    10715711
  • Published on:
    22/03/2023
  • Last updated on:
    10/05/2023
 
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