Predicting Bolt Stress Under Uncertainty in Offshore Wind Turbine Structural Connections Using a Gaussian Process Surrogate Model

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Abstract

Fatigue assessment of bolted ring-flanges in offshore wind turbine structures is a critical step in the overall structural design process. Analytical and numerical methods are employed to predict bolt stress, offering the convenience of speed (analytical) or accuracy (numerical). In this paper, we investigate the application of a Gaussian Process (GP) surrogate model, leveraging the accuracy of numerical techniques with significant gains in computation times. We present the notion of predictive uncertainty available from the GP surrogate model. Finally, we demonstrate the capacity of the GP surrogate model to propagate input space uncertainty in a computationally efficient manner.
Original languageEnglish
Title of host publicationProceedings of the Thirty-First International Ocean and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers
Pages477-484
Number of pages8
ISBN (Print)978-1-880653-82-1
Publication statusPublished - 20 Jun 2021
Event31st International Ocean and Polar Engineering Conference - Rhodes, Greece
Duration: 20 Jun 202125 Jun 2021
Conference number: 31

Conference

Conference31st International Ocean and Polar Engineering Conference
Country/TerritoryGreece
CityRhodes
Period20/06/2125/06/21

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