Point-based POMDP risk based inspection of offshore wind substructures
Morato, P.G.; Mai, Q.A.; Rigo, P.; Nielsen, J.S. (2019). Point-based POMDP risk based inspection of offshore wind substructures, in: Caspeele, R. et al. Life cycle analysis and assessment in civil engineering: towards an integrated vision.
Proceedings of the sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018), 28-31 October 2018, Ghent, Belgium. pp. 3069-3076
In: Caspeele, R.; Taerwe, L.; Frangopol, D.M. (Ed.) (2019). Life cycle analysis and assessment in civil engineering: towards an integrated vision.
Proceedings of the sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018), 28-31 October 2018, Ghent, Belgium. Taylor & Francis Group: London. ISBN 9781138626331. 564 pp., more
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Document type: Conference paper
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| Authors | | Top |
- Morato, P.G., more
- Mai, Q.A., more
- Rigo, P., more
- Nielsen, J.S.
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| 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. |
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