Reliability analysis of offshore wind turbine foundations under lateral cyclic loading
<p>The design of foundations for offshore wind turbines (OWTs) requires the assessment of long-term performance of the soil–structure interaction (SSI), which is subjected to many cyclic loadings. In terms of serviceability limit state (SLS), it has to be ensured that the load on the foundatio...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2020-11-01
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| Series: | Wind Energy Science |
| Online Access: | https://wes.copernicus.org/articles/5/1521/2020/wes-5-1521-2020.pdf |
| _version_ | 1819007801959120896 |
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| author | G. Zorzi A. Mankar J. Velarde J. D. Sørensen P. Arnold F. Kirsch |
| author_facet | G. Zorzi A. Mankar J. Velarde J. D. Sørensen P. Arnold F. Kirsch |
| author_sort | G. Zorzi |
| collection | DOAJ |
| description | <p>The design of foundations for offshore wind turbines (OWTs) requires the assessment of long-term performance of the soil–structure interaction (SSI), which is subjected to many cyclic
loadings. In terms of serviceability limit state (SLS), it has to be ensured that the load on the foundation does not exceed the operational tolerance prescribed by the wind turbine manufacturer throughout its lifetime. This work aims at developing a probabilistic approach along with a reliability framework with emphasis on verifying the SLS criterion in terms of maximum allowable rotation during an extreme cyclic loading event. This reliability framework allows the quantification of uncertainties in soil properties and the constitutive soil model for cyclic loadings and extreme environmental conditions and verifies that the foundation design meets a specific target reliability level. A 3D finite-element (FE) model is used to predict the long-term response of the SSI, accounting for the accumulation of permanent cyclic strain experienced by the soil. The proposed framework was employed for the design of a large-diameter monopile supporting a 10 MW offshore wind turbine.</p> |
| first_indexed | 2024-12-21T00:30:22Z |
| format | Article |
| id | doaj.art-2c0f41989db94b939fd507b19d80a0fd |
| institution | Directory Open Access Journal |
| issn | 2366-7443 2366-7451 |
| language | English |
| last_indexed | 2024-12-21T00:30:22Z |
| publishDate | 2020-11-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Wind Energy Science |
| spelling | doaj.art-2c0f41989db94b939fd507b19d80a0fd2022-12-21T19:21:53ZengCopernicus PublicationsWind Energy Science2366-74432366-74512020-11-0151521153510.5194/wes-5-1521-2020Reliability analysis of offshore wind turbine foundations under lateral cyclic loadingG. Zorzi0A. Mankar1J. Velarde2J. D. Sørensen3P. Arnold4F. Kirsch5GuD Geotechnik und Dynamik Consult GmbH, 10589 Berlin, GermanyDepartment of the Built Environment, Aalborg University, Aalborg, 9100, DenmarkCOWI A/S, Aarhus, 8000, DenmarkDepartment of the Built Environment, Aalborg University, Aalborg, 9100, DenmarkGuD Geotechnik und Dynamik Consult GmbH, 10589 Berlin, GermanyGuD Geotechnik und Dynamik Consult GmbH, 10589 Berlin, Germany<p>The design of foundations for offshore wind turbines (OWTs) requires the assessment of long-term performance of the soil–structure interaction (SSI), which is subjected to many cyclic loadings. In terms of serviceability limit state (SLS), it has to be ensured that the load on the foundation does not exceed the operational tolerance prescribed by the wind turbine manufacturer throughout its lifetime. This work aims at developing a probabilistic approach along with a reliability framework with emphasis on verifying the SLS criterion in terms of maximum allowable rotation during an extreme cyclic loading event. This reliability framework allows the quantification of uncertainties in soil properties and the constitutive soil model for cyclic loadings and extreme environmental conditions and verifies that the foundation design meets a specific target reliability level. A 3D finite-element (FE) model is used to predict the long-term response of the SSI, accounting for the accumulation of permanent cyclic strain experienced by the soil. The proposed framework was employed for the design of a large-diameter monopile supporting a 10 MW offshore wind turbine.</p>https://wes.copernicus.org/articles/5/1521/2020/wes-5-1521-2020.pdf |
| spellingShingle | G. Zorzi A. Mankar J. Velarde J. D. Sørensen P. Arnold F. Kirsch Reliability analysis of offshore wind turbine foundations under lateral cyclic loading Wind Energy Science |
| title | Reliability analysis of offshore wind turbine foundations under lateral cyclic loading |
| title_full | Reliability analysis of offshore wind turbine foundations under lateral cyclic loading |
| title_fullStr | Reliability analysis of offshore wind turbine foundations under lateral cyclic loading |
| title_full_unstemmed | Reliability analysis of offshore wind turbine foundations under lateral cyclic loading |
| title_short | Reliability analysis of offshore wind turbine foundations under lateral cyclic loading |
| title_sort | reliability analysis of offshore wind turbine foundations under lateral cyclic loading |
| url | https://wes.copernicus.org/articles/5/1521/2020/wes-5-1521-2020.pdf |
| work_keys_str_mv | AT gzorzi reliabilityanalysisofoffshorewindturbinefoundationsunderlateralcyclicloading AT amankar reliabilityanalysisofoffshorewindturbinefoundationsunderlateralcyclicloading AT jvelarde reliabilityanalysisofoffshorewindturbinefoundationsunderlateralcyclicloading AT jdsørensen reliabilityanalysisofoffshorewindturbinefoundationsunderlateralcyclicloading AT parnold reliabilityanalysisofoffshorewindturbinefoundationsunderlateralcyclicloading AT fkirsch reliabilityanalysisofoffshorewindturbinefoundationsunderlateralcyclicloading |