The role of multi-fidelity modelling in adaptation and recovery of engineering systems

Authors

  • Rui Teixeira University College Dublin, School of Civil Engineering, A Richview Newstead Belfield, Dublin 4, Ireland
  • Beatriz Martinez-Pastor University College Dublin, School of Civil Engineering, A Richview Newstead Belfield, Dublin 4, Ireland
  • Maria Nogal Technical University Delft, Department of Materials, Mechanics, Management & Design, Stevinweg 1, 2628 CN Delft, The Netherlands
  • Alexandra Micu Trinity College Dublin, School of Civil, structural and Environmental Engineering, College Green, Dublin 2, Ireland
  • Alan O’Connor Trinity College Dublin, School of Civil, structural and Environmental Engineering, College Green, Dublin 2, Ireland

DOI:

https://doi.org/10.14311/APP.2022.36.0224

Keywords:

metamodels, multi-fidelity model, system adaptation, system recovery, systems

Abstract

Significant research has been conducted in identifying optimal recovery and adaptation decisions in disruptive scenarios using engineering models. In this context, an aspect that has been target of limited research is that of response times. Modelling is expected to grow progressively more complex as it becomes more accurate. Such complexity increases modelling efforts, and the promise of optimal adaptation and recovery may become hindered. The present work discusses the role of modelling fidelities in adaptation and recovery of systems, and in particular that of using a lower fidelity model that enables zero-time analyses of a system. A framework is proposed for using different fidelities in adaptation and recovery, considering system’s decision time requirements. The relevance of this analysis is researched in two traffic networks and results show that multi-fidelity models should be expected to play a key role in increasing the efficiency of optimal adaptation and recovery decisions.

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Published

2022-08-18