A generic framework for reliability assessment of offshore wind turbine monopiles

L. Wang, A. Kolios

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

In this work, a generic framework for reliability assessment of OWT (Offshore Wind Turbine) monopiles is developed. The framework starts with defining limit states, and four types of limit states are considered, i.e. ultimate, fatigue, deflection and buckling. A 3D (Three-Dimensional) parametric FEA (Finite Element Analysis) model of OWT monopiles is developed, taking account of soilsolid interaction and stochastic variables (i.e. soil properties, wind, wave and current loads). Multivariate regression is used to post-process the results of stochastic FEA simulations to derive limit-state performance functions expressed in terms of stochastic variables. Having obtained the performance functions, the FORM (First Order Reliability Method) is used to calculate the reliability index for each limit state. The proposed framework is applied to a 30 m-length OWT monopile to assess its reliability. The results indicate that the fatigue reliability is dominant in the design of OWT monopiles.

Original languageEnglish
Title of host publicationProgress in the Analysis and Design of Marine Structures - Proceedings of the 6th International Conference on Marine Structures, MARSTRUCT 2017
EditorsY. Garbatov, Carlos Guedes Soares
PublisherCRC Press/Balkema
Pages931-938
Number of pages8
ISBN (Print)9781138069077
DOIs
Publication statusPublished - 28 Apr 2017
Externally publishedYes
Event6th International Conference on Marine Structures, MARSTRUCT 2017 - Lisbon, Portugal
Duration: 8 May 201710 May 2017

Conference

Conference6th International Conference on Marine Structures, MARSTRUCT 2017
CountryPortugal
CityLisbon
Period8/05/1710/05/17

Fingerprint

Offshore wind turbines
wind turbine
fatigue
Fatigue of materials
buckling
wind wave
Finite element method
deflection
soil property
Buckling
Soils
simulation
analysis

ASJC Scopus subject areas

  • Oceanography
  • Ocean Engineering

Cite this

Wang, L., & Kolios, A. (2017). A generic framework for reliability assessment of offshore wind turbine monopiles. In Y. Garbatov, & C. G. Soares (Eds.), Progress in the Analysis and Design of Marine Structures - Proceedings of the 6th International Conference on Marine Structures, MARSTRUCT 2017 (pp. 931-938). CRC Press/Balkema. https://doi.org/10.1201/9781315157368-105

A generic framework for reliability assessment of offshore wind turbine monopiles. / Wang, L.; Kolios, A.

Progress in the Analysis and Design of Marine Structures - Proceedings of the 6th International Conference on Marine Structures, MARSTRUCT 2017. ed. / Y. Garbatov; Carlos Guedes Soares. CRC Press/Balkema, 2017. p. 931-938.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Wang, L & Kolios, A 2017, A generic framework for reliability assessment of offshore wind turbine monopiles. in Y Garbatov & CG Soares (eds), Progress in the Analysis and Design of Marine Structures - Proceedings of the 6th International Conference on Marine Structures, MARSTRUCT 2017. CRC Press/Balkema, pp. 931-938, 6th International Conference on Marine Structures, MARSTRUCT 2017, Lisbon, Portugal, 8/05/17. https://doi.org/10.1201/9781315157368-105
Wang L, Kolios A. A generic framework for reliability assessment of offshore wind turbine monopiles. In Garbatov Y, Soares CG, editors, Progress in the Analysis and Design of Marine Structures - Proceedings of the 6th International Conference on Marine Structures, MARSTRUCT 2017. CRC Press/Balkema. 2017. p. 931-938 https://doi.org/10.1201/9781315157368-105
Wang, L. ; Kolios, A. / A generic framework for reliability assessment of offshore wind turbine monopiles. Progress in the Analysis and Design of Marine Structures - Proceedings of the 6th International Conference on Marine Structures, MARSTRUCT 2017. editor / Y. Garbatov ; Carlos Guedes Soares. CRC Press/Balkema, 2017. pp. 931-938
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