Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (0): add | show Print this page

Operational modal analysis in the presence of harmonic excitations: a review
Motte, K.; Weijtjens, W.; Devriendt, C.; Guillaume, P. (2015). Operational modal analysis in the presence of harmonic excitations: a review, in: Caicedo, J. et al. Dynamics of Civil Structures, Volume 2. Proceedings of the 33rd IMAC, a conference and exposition on structural dynamics, 2015. pp. 379-395. https://dx.doi.org/10.1007/978-3-319-15248-6_40
In: Caicedo, J.; Pakzad, S. (Ed.) (2015). Dynamics of Civil Structures, Volume 2. Proceedings of the 33rd IMAC, a conference and exposition on structural dynamics, 2015. Springer International Publishing: [s.l.]. ISBN 978-3-319-15247-9. IX, 557 pp. http://dx.doi.org/10.1007/978-3-319-15248-6, more

Available in  Authors 

Author keywords
    Operational Modal Analysis; Parameter estimation; Output-only;Harmonics; Wind turbine

Authors  Top 
  • Motte, K.
  • Weijtjens, W., more
  • Devriendt, C., more
  • Guillaume, P., more

Abstract
    Over the past years the use of Operational Modal Analysis (OMA) for Structural health monitoring has become more and more widespread. Such a methodology would also be relevant to wind farm owners that want to monitor the integrity of their turbines' foundations. However, harmonic components, originating from the rotor and periodic aerodynamic forces, are present within the measured vibrations. The harmonics violate the set of assumptions of common OMA techniques and as a result, these techniques potentially fail. This paper explores the different techniques presented in the literature to handle these harmonics. The techniques are first presented and later applied on data of an offshore wind turbine in the Belgian North Sea.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors