Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads Interaction
In this paper, the influence of the number of ground motions on fragility analysis of 5 MW wind turbines under the excitation of aerodynamic and seismic loads is investigated to acquire the sufficient number of records for reasonable fragility estimation. Two scenarios, parked and normal operation,...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/6/2094 |
| _version_ | 1797471805187817472 |
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| author | Chenyang Yuan Yunfei Xie Jing Li Weifeng Bai Haohao Li |
| author_facet | Chenyang Yuan Yunfei Xie Jing Li Weifeng Bai Haohao Li |
| author_sort | Chenyang Yuan |
| collection | DOAJ |
| description | In this paper, the influence of the number of ground motions on fragility analysis of 5 MW wind turbines under the excitation of aerodynamic and seismic loads is investigated to acquire the sufficient number of records for reasonable fragility estimation. Two scenarios, parked and normal operation, were simulated with the number of actual recorded ground motions ranging from 2 to 48. The fragility function parameters are estimated by utilizing the method of multiple stripe analysis (MSA), and the relationship between the number of ground motions and estimated parameters for each scenario is discussed. In addition, the influence of the number of ground motions on the range of estimated parameters with a 95% confidence interval is also discussed. The simulation results show that there are significant differences between the two scenarios in terms of fragility analysis for 5 MW wind turbines with the interaction of wind and seismic loads, and the lesser number of earthquakes is needed for a normal operation scenario compared to the parked scenario when obtaining the same accuracy fragility estimation. Furthermore, the appropriate number of ground motions to accurately estimate the fragility parameters of 5 MW wind turbines for the two scenarios is presented herein, which is almost unaffected by different wind spectra. |
| first_indexed | 2024-03-09T19:53:16Z |
| format | Article |
| id | doaj.art-97f008a48c86442c9b946ac4bd61ab95 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T19:53:16Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-97f008a48c86442c9b946ac4bd61ab952023-11-24T01:04:25ZengMDPI AGEnergies1996-10732022-03-01156209410.3390/en15062094Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads InteractionChenyang Yuan0Yunfei Xie1Jing Li2Weifeng Bai3Haohao Li4School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Architecture, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaFaculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaHenan Province Tobacco Company Luoyang Company, Luoyang 471012, ChinaIn this paper, the influence of the number of ground motions on fragility analysis of 5 MW wind turbines under the excitation of aerodynamic and seismic loads is investigated to acquire the sufficient number of records for reasonable fragility estimation. Two scenarios, parked and normal operation, were simulated with the number of actual recorded ground motions ranging from 2 to 48. The fragility function parameters are estimated by utilizing the method of multiple stripe analysis (MSA), and the relationship between the number of ground motions and estimated parameters for each scenario is discussed. In addition, the influence of the number of ground motions on the range of estimated parameters with a 95% confidence interval is also discussed. The simulation results show that there are significant differences between the two scenarios in terms of fragility analysis for 5 MW wind turbines with the interaction of wind and seismic loads, and the lesser number of earthquakes is needed for a normal operation scenario compared to the parked scenario when obtaining the same accuracy fragility estimation. Furthermore, the appropriate number of ground motions to accurately estimate the fragility parameters of 5 MW wind turbines for the two scenarios is presented herein, which is almost unaffected by different wind spectra.https://www.mdpi.com/1996-1073/15/6/2094sensitive analysisfragility analysiswind turbinesaerodynamic and seismic load interactionappropriate number of ground motions |
| spellingShingle | Chenyang Yuan Yunfei Xie Jing Li Weifeng Bai Haohao Li Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads Interaction Energies sensitive analysis fragility analysis wind turbines aerodynamic and seismic load interaction appropriate number of ground motions |
| title | Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads Interaction |
| title_full | Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads Interaction |
| title_fullStr | Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads Interaction |
| title_full_unstemmed | Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads Interaction |
| title_short | Influence of the Number of Ground Motions on Fragility Analysis of 5 MW Wind Turbines Subjected to Aerodynamic and Seismic Loads Interaction |
| title_sort | influence of the number of ground motions on fragility analysis of 5 mw wind turbines subjected to aerodynamic and seismic loads interaction |
| topic | sensitive analysis fragility analysis wind turbines aerodynamic and seismic load interaction appropriate number of ground motions |
| url | https://www.mdpi.com/1996-1073/15/6/2094 |
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