Continuous Fatigue Assessment of an Offshore Wind Turbine Using a Limited Number of Vibration Sensors

Abstract : Offshore Wind turbines are exposed to continuous wind and wave excitation that leads to high periodic stresses and strains at critical locations. This makes the structures prone to structural failure due to possible crack initiations and propagations. The continuous monitoring of the Wind Turbine is of utmost importance in order to assess the remaining lifetime and accumulative fatigue damage of the structure. Health monitoring of wind turbines is usually performed by collecting real-time operating data on a limited number of accessible locations using traditional sensors such as accelerometers and strain-gauges. When dealing with Offshore Wind Turbine though, most of the fatigue sensitive spots are inaccessible for direct measurements, e.g. at the muddline 30 meters below the water level. Response estimation techniques can then be used to estimate the response at unmeasured locations from a limited set of response measurements and a Finite Element Model. This paper makes use of a modal decomposition and expansion algorithm that allows for successful response prediction. The algorithm is validated using data obtained from a monitoring campaign on an offshore Vestas V90 3 MW wind turbine on a monopile foundation.
Type de document :
Communication dans un congrès
Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014
Liste complète des métadonnées

Littérature citée [13 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01020445
Contributeur : Anne Jaigu <>
Soumis le : mardi 8 juillet 2014 - 10:12:53
Dernière modification le : mardi 8 juillet 2014 - 13:50:52
Document(s) archivé(s) le : mercredi 8 octobre 2014 - 12:10:56

Fichier

0112.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01020445, version 1

Collections

Citation

Alexandros Iliopoulos, Christof Devriendt, Patrick Guillaume, Danny Van Hemelrijck. Continuous Fatigue Assessment of an Offshore Wind Turbine Using a Limited Number of Vibration Sensors. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01020445〉

Partager

Métriques

Consultations de la notice

200

Téléchargements de fichiers

685