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A method for monitoring of monopile horizontal displacement of offshore wind turbine based on UWFBG and boundary reconstruction.

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Title: A method for monitoring of monopile horizontal displacement of offshore wind turbine based on UWFBG and boundary reconstruction.
Authors: Han, Heming1,2 (AUTHOR) hanheming@smail.nju.edu.cn, Meng, Zhihao3 (AUTHOR) mengzhihao@sdepci.com, Shi, Bin1,2 (AUTHOR) shibin@nju.edu.cn, Zha, Fusheng1 (AUTHOR) geozha@hfut.edu.cn, Wei, Guangqing4 (AUTHOR) wgq@nzsensing.com, Yu, Liangchen1 (AUTHOR) ylc1203@126.com, Song, Xiaojin1 (AUTHOR) 13819702066@163.com
Source: Measurement (02632241). Aug2025, Vol. 252, pN.PAG-N.PAG. 1p.
Subjects: Fiber Bragg gratings, Offshore wind power plants, Energy development, Wind power, Strain rate
Abstract: • The UWFBG is used for on-site displacement monitoring of monopile. • The boundary reconstruction is proposed for the monopile displacement calculation. • The boundary reconstruction reduces error by 80 % compared to current models. • The deformation mode change can be identified by the strain distributional feature. Ensuring the safe and reliable operation of offshore wind turbines (OWTs) is a key research focus for offshore wind energy development. The evaluation of the stability of monopiles, which are the most widely installed support structures, plays a critical role in the safe operation of offshore wind farms. Monitoring the displacement of monopiles is one of the most cost-effective approaches for evaluating their structural stability. To overcome the limitations of traditional monitoring techniques, a new method combining ultraweak fiber Bragg grating (UWFBG) and boundary reconstruction is proposed for monopile displacement monitoring. Field testing and numerical simulations were performed on an OWT monopile to validate the effectiveness of the proposed method. The results demonstrate that the UWFBG technology can automatically monitor the strain distribution of a monopile in real time, and the proposed boundary reconstruction method shows high accuracy in calculating the monopile displacement. Compared with the conventional strain–displacement calculation method, the proposed boundary reconstruction approach reduces the error by 80 % when the numerical simulation results are used as reference values. Furthermore, the rate of strain reduction with depth (k) and the bottom strain characteristics of the monopile served as key indicators for detecting changes in the monopile deformation model. [ABSTRACT FROM AUTHOR]
Copyright of Measurement (02632241) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 184753326
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: A method for monitoring of monopile horizontal displacement of offshore wind turbine based on UWFBG and boundary reconstruction.
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  Data: <searchLink fieldCode="AR" term="%22Han%2C+Heming%22">Han, Heming</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> hanheming@smail.nju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Meng%2C+Zhihao%22">Meng, Zhihao</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> mengzhihao@sdepci.com</i><br /><searchLink fieldCode="AR" term="%22Shi%2C+Bin%22">Shi, Bin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> shibin@nju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zha%2C+Fusheng%22">Zha, Fusheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> geozha@hfut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wei%2C+Guangqing%22">Wei, Guangqing</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> wgq@nzsensing.com</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Liangchen%22">Yu, Liangchen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ylc1203@126.com</i><br /><searchLink fieldCode="AR" term="%22Song%2C+Xiaojin%22">Song, Xiaojin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 13819702066@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Measurement+%2802632241%29%22">Measurement (02632241)</searchLink>. Aug2025, Vol. 252, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Fiber+Bragg+gratings%22">Fiber Bragg gratings</searchLink><br /><searchLink fieldCode="DE" term="%22Offshore+wind+power+plants%22">Offshore wind power plants</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+development%22">Energy development</searchLink><br /><searchLink fieldCode="DE" term="%22Wind+power%22">Wind power</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+rate%22">Strain rate</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • The UWFBG is used for on-site displacement monitoring of monopile. • The boundary reconstruction is proposed for the monopile displacement calculation. • The boundary reconstruction reduces error by 80 % compared to current models. • The deformation mode change can be identified by the strain distributional feature. Ensuring the safe and reliable operation of offshore wind turbines (OWTs) is a key research focus for offshore wind energy development. The evaluation of the stability of monopiles, which are the most widely installed support structures, plays a critical role in the safe operation of offshore wind farms. Monitoring the displacement of monopiles is one of the most cost-effective approaches for evaluating their structural stability. To overcome the limitations of traditional monitoring techniques, a new method combining ultraweak fiber Bragg grating (UWFBG) and boundary reconstruction is proposed for monopile displacement monitoring. Field testing and numerical simulations were performed on an OWT monopile to validate the effectiveness of the proposed method. The results demonstrate that the UWFBG technology can automatically monitor the strain distribution of a monopile in real time, and the proposed boundary reconstruction method shows high accuracy in calculating the monopile displacement. Compared with the conventional strain–displacement calculation method, the proposed boundary reconstruction approach reduces the error by 80 % when the numerical simulation results are used as reference values. Furthermore, the rate of strain reduction with depth (k) and the bottom strain characteristics of the monopile served as key indicators for detecting changes in the monopile deformation model. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Measurement (02632241) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.measurement.2025.117384
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Fiber Bragg gratings
        Type: general
      – SubjectFull: Offshore wind power plants
        Type: general
      – SubjectFull: Energy development
        Type: general
      – SubjectFull: Wind power
        Type: general
      – SubjectFull: Strain rate
        Type: general
    Titles:
      – TitleFull: A method for monitoring of monopile horizontal displacement of offshore wind turbine based on UWFBG and boundary reconstruction.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Han, Heming
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          Name:
            NameFull: Meng, Zhihao
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            NameFull: Shi, Bin
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            NameFull: Zha, Fusheng
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            NameFull: Wei, Guangqing
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            NameFull: Yu, Liangchen
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            NameFull: Song, Xiaojin
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          Dates:
            – D: 01
              M: 08
              Text: Aug2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 02632241
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              Value: 252
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            – TitleFull: Measurement (02632241)
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