Sensitivity analysis of design parameters for reliability assessment of offshore wind turbine jacket support structures
Shittu, Abdulhakim Adeoye and Mehmanparast, Ali and Amirafshari, Peyman and Hart, Phil and Kolios, Athanasios (2022) Sensitivity analysis of design parameters for reliability assessment of offshore wind turbine jacket support structures. International Journal of Naval Architecture and Ocean Engineering, 14. 100441. ISSN 2092-6790 (https://doi.org/10.1016/j.ijnaoe.2022.100441)
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Abstract
Offshore wind turbine (OWT) support structures are subjected to hostile environments, defined by highly stochastic loads and complex soil-structure interaction, and thus the need for a probabilistic approach towards design. The study carried out herein presents the sensitivity analysis of these inherent stochastic variables imposed on a complex OWT support structure via purpose-developed modular non-intrusive structural reliability assessment formulation. The results from this study reveal that the uncertainties in the wind speed is a structural design driving factor and the hydrodynamic load effects are secondary to this, for the ultimate (ULS) and fatigue limit states (FLS) while their relative sensitivities on the serviceability limit state (SLS) cannot be clearly distinguished but are seen to have a dominant impact. Also, it was inferred that incorporating correlation between the variables have a significant impact on the reliability of the structure in the ULS design.
ORCID iDs
Shittu, Abdulhakim Adeoye, Mehmanparast, Ali ORCID: https://orcid.org/0000-0002-7099-7956, Amirafshari, Peyman ORCID: https://orcid.org/0000-0001-5394-9648, Hart, Phil and Kolios, Athanasios ORCID: https://orcid.org/0000-0001-6711-641X;-
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Item type: Article ID code: 79779 Dates: DateEvent30 April 2022Published22 April 2022Published Online14 February 2022AcceptedSubjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering
Technology > Hydraulic engineering. Ocean engineeringDepartment: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 02 Mar 2022 08:51 Last modified: 12 Dec 2024 17:29 URI: https://strathprints.strath.ac.uk/id/eprint/79779