Simulating the service life performance of an inspected group of jacket-type structures
- A novel method for risk-based optimization of inspection and repair strategies for deteriorating structural systems has recently been proposed. The method defines heuristics at the system level to reduce the number of possible strategies. For each defined strategy, it computes the updated system failure probability conditional on simulated inspection and repair histories, and evaluates the associated costs and risk. The expected total service life costs and risk for a strategy are finally determined using Monte Carlo simulation. The optimal strategy minimizes the expected total service life costs and risk. We intend to adopt this approach to optimize inspection, monitoring and repair activities for offshore wind park support structures. As a first step, we simulate – in analogy to an offshore wind park – the service life performance of an inspected group of jacket-type frames. The performance is quantified in terms of the group’s system failure probability conditional on simulatedA novel method for risk-based optimization of inspection and repair strategies for deteriorating structural systems has recently been proposed. The method defines heuristics at the system level to reduce the number of possible strategies. For each defined strategy, it computes the updated system failure probability conditional on simulated inspection and repair histories, and evaluates the associated costs and risk. The expected total service life costs and risk for a strategy are finally determined using Monte Carlo simulation. The optimal strategy minimizes the expected total service life costs and risk. We intend to adopt this approach to optimize inspection, monitoring and repair activities for offshore wind park support structures. As a first step, we simulate – in analogy to an offshore wind park – the service life performance of an inspected group of jacket-type frames. The performance is quantified in terms of the group’s system failure probability conditional on simulated inspection and repair histories. The underlying system model accounts for the structural redundancy of the frames and the interdependence among their failure events due to similar loading conditions. The model also captures stochastic dependence among the deterioration states of the frames. As part of the simulation process the a-priori unknown outcome of any planned inspection is generated conditional on the outcome of all previous inspections.…
Autor*innen: | Ronald SchneiderORCiD, Sebastian ThönsORCiD, Andreas Rogge |
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Persönliche Herausgeber*innen: | Christian Bucher, Bruce R. Ellingwood, Dan M. Frangopol |
Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Proceedings of the 12th International Conference on Structural Safety and Reliability |
Jahr der Erstveröffentlichung: | 2017 |
Verlag: | TU-MV Media Verlag GmbH |
Verlagsort: | Vienna, Austria |
Erste Seite: | 2738 |
Letzte Seite: | 2747 |
Freie Schlagwörter: | Fatigue; Inspection; Inspection planning; Reliability; Service life performance |
Veranstaltung: | 12th International Conference on Structural Safety and Reliability |
Veranstaltungsort: | Vienna, Austria |
Beginndatum der Veranstaltung: | 06.08.2017 |
Enddatum der Veranstaltung: | 10.08.2017 |
ISBN: | 978-3-903024-28-1 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 15.08.2017 |
Referierte Publikation: | Nein |