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

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

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer 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.
OriginalsprogEngelsk
TitelProceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing
RedaktørerB. H. V. Topping, P. Iványi
Antal sider10
UdgivelsesstedStirlingshire
ForlagCivil-Comp Press
Publikationsdato2013
ISBN (Trykt)978-1-905088-57-7
DOI
StatusUdgivet - 2013
BegivenhedThe Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing - Cargliari, Italien
Varighed: 3 sep. 20136 sep. 2013

Konference

KonferenceThe Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing
Land/OmrådeItalien
ByCargliari
Periode03/09/201306/09/2013
NavnCivil-Comp Proceedings
Nummer102
ISSN1759-3433

Bibliografisk note

Paper no. 186

Emneord

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

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