Point-based POMDP Risk Based Inspection of Offshore Wind Substructures

Pablo G. Morato, Quang A. Mai, Philippe Rigo, Jannie Sønderkær Nielsen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)

Abstract

This article presents a novel methodology to select the optimal maintenance strategy of an offshore wind structural component, providing a flexible and reliable support to decision-making and balancing inspection, repair and failure costs. The procedure to create a “Point-Based” Partially Observable Markov Decision Process (POMDP) is described and a calibrated fracture mechanics model is introduced to assess the deterioration of the structure. The methodology is then tested for a tubular joint through a 60-states POMDP, obtaining the optimal maintenance policy in low computational time and in good agreement with common Risk-Based Inspection (RBI) methods.
Original languageEnglish
Title of host publicationLife-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
EditorsDan M. Frangopol, Robby Caspeele, Luc Taerwe
Number of pages8
PublisherCRC Press
Publication date2019
Pages3069-3076
ChapterGS9:Assessment of existing structures
ISBN (Print)978-1-138-62633-1
ISBN (Electronic)978-1-315-22891-4
DOIs
Publication statusPublished - 2019
EventThe Sixth International Symposium on Life-Cycle Civil Engineering - Ghent, Belgium
Duration: 28 Oct 201831 Oct 2018
Conference number: 6
http://www.ialcce2018.org/#/home

Conference

ConferenceThe Sixth International Symposium on Life-Cycle Civil Engineering
Number6
Country/TerritoryBelgium
CityGhent
Period28/10/201831/10/2018
Internet address

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