Vibration-based structural interrogation and health monitoring based on nonlinear signal analysis

Irina Trendafilova

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Abstract

Vibration-based structural interrogation and health monitoring is a field which is concerned with the estimation of the current state of a structure or a component from its vibration response with regards to its ability to perform its intended function appropriately. This study suggests using the concept of signal cross-correlation for the purposes of vibration-based health monitoring. A nonlinear alternative of the cross-correlation, the mutual information between two signals measured on the structure, regarded as an input and an output, is used to develop a damage metric and a damage index. The application of the suggested methodology is shown on a composite beam test set using experimental measurements.
Original languageEnglish
Publication statusPublished - 24 Jul 2011
Event7th European Nonlinear Dynamics Conference, ENOC2011 - Rome, Italy
Duration: 24 Jul 201129 Jul 2011

Conference

Conference7th European Nonlinear Dynamics Conference, ENOC2011
CountryItaly
CityRome
Period24/07/1129/07/11

Keywords

  • health monitoring
  • structural interrogation
  • nonlinear signal analysis

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    Trendafilova, I. (2011). Vibration-based structural interrogation and health monitoring based on nonlinear signal analysis. Paper presented at 7th European Nonlinear Dynamics Conference, ENOC2011, Rome, Italy.