Structural health monitoring of 52-meter wind turbine blade: Detection of damage propagation during fatigue testing

Mads A. Fremmelev*, Purim Ladpli, Esben Orlowitz, Lars O. Bernhammer, Malcolm McGugan, Kim Branner

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

This work is concerned with damage detection in a commercial 52-meter wind turbine blade during fatigue testing. Different artificial damages are introduced in the blade in the form of laminate cracks. The lengths of the damages are increased manually, and they all eventually propagate and develop into delaminations during fatigue loading. Strain gauges, acoustic emission sensors, distributed accelerometers, and an active vibration monitoring system are used to track different physical responses in healthy and damaged states of the blade. Based on the recorded data, opportunities and limitations of the different sensing systems for blade structural health monitoring are investigated.
Original languageEnglish
Article numbere22
JournalData-Centric Engineering
Volume3
Number of pages24
ISSN2632-6736
DOIs
Publication statusPublished - 2022

Keywords

  • Damage
  • Fatigue testing
  • Structural health monitoring
  • Wind turbine blades

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