Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method
Ice loads are an important and decisive factor for the safe operation of offshore wind turbines (OWTs). In severe environment load cases, it shall lead to prominent ice-induced vibration and ice-induced fatigue failure of OWT structures. Based on the cohesive element method (CEM) and considering the...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-09-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.956032/full |
| _version_ | 1828177844471070720 |
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| author | Bin Wang Bin Wang Yingzhou Liu Yingzhou Liu Jianhua Zhang Wei Shi Wei Shi Xin Li Xin Li Ying Li |
| author_facet | Bin Wang Bin Wang Yingzhou Liu Yingzhou Liu Jianhua Zhang Wei Shi Wei Shi Xin Li Xin Li Ying Li |
| author_sort | Bin Wang |
| collection | DOAJ |
| description | Ice loads are an important and decisive factor for the safe operation of offshore wind turbines (OWTs). In severe environment load cases, it shall lead to prominent ice-induced vibration and ice-induced fatigue failure of OWT structures. Based on the cohesive element method (CEM) and considering the pile–soil interaction used by nonlinear distributed springs, the full interaction model of the ice and monopile OWT structure with an ice-breaking cone in a cold sea region is established in this study. Furthermore, the Tsai-Wu failure criterion and the empirical failure formula of maximum plastic failure strain are used to describe the mechanical behavior of ice bending failure in the collision simulation tool LS-DYNA, and the dynamic ice loads under different ice velocities and cone angles are statistically analyzed. Finally, according to the interaction process between sea ice and OWT containing the ice-breaking cone, the dynamic response of OWT under the combined wind and ice loads is studied, and the most reasonable ice-breaking cone angle is determined. The results show that the method adopted in this paper can well simulate the bending failure process of sea ice. Concurrently, the cone angle has a significant impact on the dynamic response and damage of the OWT, and the recommended optimal cone angle is 60. |
| first_indexed | 2024-04-12T05:06:19Z |
| format | Article |
| id | doaj.art-8a0cc117fb864c4b849c04230d188004 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-12T05:06:19Z |
| publishDate | 2022-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-8a0cc117fb864c4b849c04230d1880042022-12-22T03:46:53ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-09-01910.3389/fmars.2022.956032956032Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element methodBin Wang0Bin Wang1Yingzhou Liu2Yingzhou Liu3Jianhua Zhang4Wei Shi5Wei Shi6Xin Li7Xin Li8Ying Li9Key Laboratory of Far-shore Wind Power Technology of Zhejiang Province, Hangzhou, ChinaPowerchina Huadong Engineering Corporation Limited, Hangzhou, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, ChinaInstitute of Earthquake Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, ChinaDeepwater Engineering Research Center, Dalian University of Technology, Dalian, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, ChinaInstitute of Earthquake Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, ChinaChinese-German Institute of Engineering, Zhejiang University of Science and Technology, Hangzhou, ChinaIce loads are an important and decisive factor for the safe operation of offshore wind turbines (OWTs). In severe environment load cases, it shall lead to prominent ice-induced vibration and ice-induced fatigue failure of OWT structures. Based on the cohesive element method (CEM) and considering the pile–soil interaction used by nonlinear distributed springs, the full interaction model of the ice and monopile OWT structure with an ice-breaking cone in a cold sea region is established in this study. Furthermore, the Tsai-Wu failure criterion and the empirical failure formula of maximum plastic failure strain are used to describe the mechanical behavior of ice bending failure in the collision simulation tool LS-DYNA, and the dynamic ice loads under different ice velocities and cone angles are statistically analyzed. Finally, according to the interaction process between sea ice and OWT containing the ice-breaking cone, the dynamic response of OWT under the combined wind and ice loads is studied, and the most reasonable ice-breaking cone angle is determined. The results show that the method adopted in this paper can well simulate the bending failure process of sea ice. Concurrently, the cone angle has a significant impact on the dynamic response and damage of the OWT, and the recommended optimal cone angle is 60.https://www.frontiersin.org/articles/10.3389/fmars.2022.956032/fullice-structure interaction modeloffshore wind turbinecohesive element methodbending failuredynamic analysis |
| spellingShingle | Bin Wang Bin Wang Yingzhou Liu Yingzhou Liu Jianhua Zhang Wei Shi Wei Shi Xin Li Xin Li Ying Li Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method Frontiers in Marine Science ice-structure interaction model offshore wind turbine cohesive element method bending failure dynamic analysis |
| title | Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method |
| title_full | Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method |
| title_fullStr | Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method |
| title_full_unstemmed | Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method |
| title_short | Dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method |
| title_sort | dynamic analysis of offshore wind turbines subjected to the combined wind and ice loads based on the cohesive element method |
| topic | ice-structure interaction model offshore wind turbine cohesive element method bending failure dynamic analysis |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.956032/full |
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