Strain-based operational modal analysis for wind turbine blades

E. di Lorenzo*, S. Manzato, Marcin Luczak, B. Peeters, Kim Branner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The aim of this paper is to explore alternative ways to determine the vibration characteristics of wind turbine blades to reduce the amount and duration of needed tests without compromising the quality of the retrieved information. Applied test setup configuration, test specimen mounting and measurement equipment are known to affect the test results. The investigation concerns the use of Operational Modal Analysis (OMA) method together with the existing instrumentation for fatigue and static testing. The wind turbine blade is clamped to the support structure and instrumented by means of many strain gauges. A so-called pull and release test can be performed,and the modal parameters can be obtained by analyzing the measured strains during this type of test. Numerical correlation can then be performed with respect to the validated FE model of the clamped blade allowing to enrich the acquired information.
Original languageEnglish
Title of host publicationProceedings of the 8th International Operational Modal Analysis Conference
Number of pages9
PublisherIOMAC
Publication date2019
Publication statusPublished - 2019
Event8th International Operational Modal Analysis Conference - Admiral Hotel, Copenhagen, Denmark
Duration: 12 May 201915 May 2019
Conference number: 8

Conference

Conference8th International Operational Modal Analysis Conference
Number8
LocationAdmiral Hotel
CountryDenmark
CityCopenhagen
Period12/05/201915/05/2019
SeriesInternational Operational Modal Analysis Conference ( IOMAC )

Keywords

  • Operational Modal Analysis
  • Wind turbine blade
  • Strain measurements

Cite this

di Lorenzo, E., Manzato, S., Luczak, M., Peeters, B., & Branner, K. (2019). Strain-based operational modal analysis for wind turbine blades. In Proceedings of the 8th International Operational Modal Analysis Conference IOMAC. International Operational Modal Analysis Conference ( IOMAC )