Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model Updating
An effective approach to deal with the structural failures of transmission towers in tornadic events is to develop good structural health monitoring (SHM) systems for them. However, the strategy for SHM of transmission towers against tornados should be different from the conventional atmospheric bou...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/2/357 |
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| author | Nai-Long Zhang Chao Gao Gang Qiu Jing-Gang Yang Bai-Jian Wu Xiao-Xiang Cheng |
| author_facet | Nai-Long Zhang Chao Gao Gang Qiu Jing-Gang Yang Bai-Jian Wu Xiao-Xiang Cheng |
| author_sort | Nai-Long Zhang |
| collection | DOAJ |
| description | An effective approach to deal with the structural failures of transmission towers in tornadic events is to develop good structural health monitoring (SHM) systems for them. However, the strategy for SHM of transmission towers against tornados should be different from the conventional atmospheric boundary layer (ABL) winds oriented ones, as the non-stationary nature of the tornados significantly differentiates them from the ABL winds. To satisfy the need of obtaining the highly time-varying whole-field stress on the structure in the course of the tornadic event for effective SHM, an innovative transient tornadic load distribution identification method is proposed for use, which is based on the field structural mode shape measurement and dynamic finite-element (FE) model updating. Via a numerical case study, it is noted that good effectiveness is achieved for the new load distribution identification method. Employing the Modal Assurance Criteria based FE model updating technique, the new method has the advantage of being easily embraced in practical SHM systems. It is found that when the transient tornadic velocity profile to be identified is noticeably different from the mode shape of the structure without undertaking external loads, the identified load pattern is very accurate for the new approach. |
| format | Article |
| id | doaj-art-4032a6b5fa044d1cb8aed4c58fbe20ff |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-4032a6b5fa044d1cb8aed4c58fbe20ff2025-01-24T13:31:11ZengMDPI AGEnergies1996-10732025-01-0118235710.3390/en18020357Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model UpdatingNai-Long Zhang0Chao Gao1Gang Qiu2Jing-Gang Yang3Bai-Jian Wu4Xiao-Xiang Cheng5Electric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd., Nanjing 210000, ChinaState Grid Jiangsu Electric Power Co., Ltd., Nanjing 210000, ChinaElectric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd., Nanjing 210000, ChinaElectric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd., Nanjing 210000, ChinaSchool of Civil Engineering, Southeast University, Nanjing 211189, ChinaSchool of Civil Engineering, Southeast University, Nanjing 211189, ChinaAn effective approach to deal with the structural failures of transmission towers in tornadic events is to develop good structural health monitoring (SHM) systems for them. However, the strategy for SHM of transmission towers against tornados should be different from the conventional atmospheric boundary layer (ABL) winds oriented ones, as the non-stationary nature of the tornados significantly differentiates them from the ABL winds. To satisfy the need of obtaining the highly time-varying whole-field stress on the structure in the course of the tornadic event for effective SHM, an innovative transient tornadic load distribution identification method is proposed for use, which is based on the field structural mode shape measurement and dynamic finite-element (FE) model updating. Via a numerical case study, it is noted that good effectiveness is achieved for the new load distribution identification method. Employing the Modal Assurance Criteria based FE model updating technique, the new method has the advantage of being easily embraced in practical SHM systems. It is found that when the transient tornadic velocity profile to be identified is noticeably different from the mode shape of the structure without undertaking external loads, the identified load pattern is very accurate for the new approach.https://www.mdpi.com/1996-1073/18/2/357transmission towertornadostructural health monitoringload distributionparameter identificationnumerical analysis |
| spellingShingle | Nai-Long Zhang Chao Gao Gang Qiu Jing-Gang Yang Bai-Jian Wu Xiao-Xiang Cheng Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model Updating Energies transmission tower tornado structural health monitoring load distribution parameter identification numerical analysis |
| title | Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model Updating |
| title_full | Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model Updating |
| title_fullStr | Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model Updating |
| title_full_unstemmed | Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model Updating |
| title_short | Non-Stationary Wind Loading Identification for Large Transmission Tower Based on Dynamic Finite-Element Model Updating |
| title_sort | non stationary wind loading identification for large transmission tower based on dynamic finite element model updating |
| topic | transmission tower tornado structural health monitoring load distribution parameter identification numerical analysis |
| url | https://www.mdpi.com/1996-1073/18/2/357 |
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