Structural Health Monitoring of a Grouted Foundation Part for Offshore Wind Turbines

Ronnie Pedersen, Poul Henning Kirkegaard, B. j. Pedersen, Lars Damkilde

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

The grout connection ties a monopile foundation to the tower on an offshore wind turbine. More or less all offshore wind turbines on monopiles have this structural solution. Unfortunately, vertical failure settlements have been observed as a result of the loss of friction/bonding in the grout material. This observation obviously requires a reassessment of the structural integrity of the grout connection. However visual inspections are not possibly and as such calibration of a detailed finite element analysis is practically impossible. The present paper considers the potential of using a structural health monitoring (SHM) method for detecting failures in a grouted connection. A finite element model representing different assumed damage stages of the grout connection is established and acceleration time series are simulated. A time series model based on the SHM method indicates that minor simulated damages can be identified.
Original languageEnglish
Title of host publicationProceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing
EditorsB. H. V. Topping, P. Iványi
Number of pages10
Place of PublicationStirlingshire
PublisherCivil-Comp Press
Publication date2013
ISBN (Print)978-1-905088-57-7
DOIs
Publication statusPublished - 2013
EventThe Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing - Cargliari, Italy
Duration: 3 Sept 20136 Sept 2013

Conference

ConferenceThe Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing
Country/TerritoryItaly
CityCargliari
Period03/09/201306/09/2013
SeriesCivil-Comp Proceedings
Number102
ISSN1759-3433

Bibliographical note

Paper no. 186

Keywords

  • Structural Health Monitoring
  • Damage Indicator
  • Offshore Wind Turbine
  • Grout Connection

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