Ultrasonic guided-wave based value of information approach for optimal sensor placement

Sergio Cantero-Chinchilla, Dimitrios Chronopoulos*, Juan Chiachío, Manuel Chiachío, Han Meng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

A value of information based approach for optimal structural health monitoring design using ultrasonic guided-waves is introduced in this paper. The method trades-off information gained from the ultrasonic data and costs associated to the number of sensors, while accounting for modeling and material uncertainties. The optimization of the position of sensors is carried out using a greedy algorithm, whereby sensors are optimally placed stepwise in the most informative locations. The optimal number of sensors is obtained by evaluating the expected value of information of each of the different sensor configurations, consisting of a number and a spatial layout. The methodology is illustrated using a plate-like structure with a bounded damage area where damage can potentially arise according to a given spatial prior distribution. The results highlight the ability of the proposed methodology in rationally providing optimal sensor configurations according to a sensor cost law.

Original languageEnglish
Title of host publication"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021
EditorsEleonora Carletti, Malcolm Crocker, Marek Pawelczyk, Jiri Tuma
PublisherSilesian University Press
ISBN (Electronic)9788378807995
Publication statusPublished - 2021
Event27th International Congress on Sound and Vibration, ICSV 2021 - Virtual, Online
Duration: 11 Jul 202116 Jul 2021

Publication series

Name"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021

Conference

Conference27th International Congress on Sound and Vibration, ICSV 2021
CityVirtual, Online
Period11/07/2116/07/21

Bibliographical note

Funding Information:
This paper is part of the SAFE-FLY project that has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 721455. In addition, the authors are grateful for the access to the University of Nottingham High Performance Computing Facility and to the University of Granada for “ROBIN” grant [30.BF.66.11.01], which partially provides support to this work.

Funding Information:
This paper is part of the SAFE-FLY project that has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 721455. In addition, the authors are grateful for the access to the University of Nottingham High Performance Computing Facility and to the University of Granada for “ROBIN” grant [30.BF.66.11.01], which partially provides support to this work.

Publisher Copyright:
© "Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021. All rights reserved.

Keywords

  • Optimal sensor configuration
  • Structural health monitoring
  • Ultrasonic guided-waves
  • Value of information

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