Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar
This paper describes the use of non-contact quasi monostatic ground-based radar (GBR) for system health monitoring (SHM) of the blades of wind turbines. It focusses on the deflection monitoring of these blades and validates the results from the design parameters extracted from numerical simulations...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/55278/ |
| _version_ | 1848799140507549696 |
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| author | Ochieng, Francis Xavier Hancock, Craig Matthew Roberts, Gethin Wyn Le Kernec, Julien Tang, Xu |
| author_facet | Ochieng, Francis Xavier Hancock, Craig Matthew Roberts, Gethin Wyn Le Kernec, Julien Tang, Xu |
| author_sort | Ochieng, Francis Xavier |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper describes the use of non-contact quasi monostatic ground-based radar (GBR) for system health monitoring (SHM) of the blades of wind turbines. It focusses on the deflection monitoring of these blades and validates the results from the design parameters extracted from numerical simulations during the design stage.
Using a 3-tier SHM framework, acquisition of deflection in the time-domain is done by the GBR. These results are then transformed into the frequency-domain using a fast Fourier transform (FFT) to obtain the resonant frequencies as second step in the 3-step SHM framework. The third step of validation / hypothesis testing of the measured results with initial simulated design parameter is then effected to demonstrate that the GBR can be used for deformation health monitoring of composite blades and towers.
The work demonstrates that the GBR can be deployed as a non-contact, real-time monitor that can measure deflections and natural-vibration frequencies of wind turbines blades. This enables smart monitoring of dynamic structures in urban and non-urban settings. |
| first_indexed | 2025-11-14T20:30:56Z |
| format | Conference or Workshop Item |
| id | nottingham-55278 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:30:56Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-552782018-10-11T08:46:30Z https://eprints.nottingham.ac.uk/55278/ Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar Ochieng, Francis Xavier Hancock, Craig Matthew Roberts, Gethin Wyn Le Kernec, Julien Tang, Xu This paper describes the use of non-contact quasi monostatic ground-based radar (GBR) for system health monitoring (SHM) of the blades of wind turbines. It focusses on the deflection monitoring of these blades and validates the results from the design parameters extracted from numerical simulations during the design stage. Using a 3-tier SHM framework, acquisition of deflection in the time-domain is done by the GBR. These results are then transformed into the frequency-domain using a fast Fourier transform (FFT) to obtain the resonant frequencies as second step in the 3-step SHM framework. The third step of validation / hypothesis testing of the measured results with initial simulated design parameter is then effected to demonstrate that the GBR can be used for deformation health monitoring of composite blades and towers. The work demonstrates that the GBR can be deployed as a non-contact, real-time monitor that can measure deflections and natural-vibration frequencies of wind turbines blades. This enables smart monitoring of dynamic structures in urban and non-urban settings. 2018-05-06 Conference or Workshop Item PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/55278/1/TS04F_ochieng_hancock_et_al_9482.pdf Ochieng, Francis Xavier, Hancock, Craig Matthew, Roberts, Gethin Wyn, Le Kernec, Julien and Tang, Xu (2018) Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar. In: FIG Congress 2018, 6-11 May 2018, Istanbul, Turkey. deflections; radar; wind; blades; monitoring |
| spellingShingle | deflections; radar; wind; blades; monitoring Ochieng, Francis Xavier Hancock, Craig Matthew Roberts, Gethin Wyn Le Kernec, Julien Tang, Xu Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar |
| title | Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar |
| title_full | Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar |
| title_fullStr | Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar |
| title_full_unstemmed | Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar |
| title_short | Novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar |
| title_sort | novel non-contact deformation health monitoring of towers and rotating composite based wind turbine blades using interferometric ground-based radar |
| topic | deflections; radar; wind; blades; monitoring |
| url | https://eprints.nottingham.ac.uk/55278/ |