A method for vibration-based structural interrogation and health monitoring based on signal cross-correlation

Trendafilova, Irina (2011) A method for vibration-based structural interrogation and health monitoring based on signal cross-correlation. Journal of Physics Conference Series, 305 (1). 012005. ISSN 1742-6588

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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. One way to approach this problem is through damage features extracted from the measured structural vibration response. This paper suggests to use a new concept for the purposes of vibration-based health monitoring. The correlation between two signals, an input and an output, measured on the structure is used to develop a damage indicator. The paper investigates the applicability of the signal cross-correlation and a nonlinear alternative, the average mutual information between the two signals, for the purposes of structural health monitoring and damage assessment. The suggested methodology is applied and demonstrated for delamination detection in a composite beam.

      Creators(s): Trendafilova, Irina ORCID logoORCID: https://orcid.org/0000-0003-1121-7718;
      Item type:Article
      ID code:32370
      Keywords:engineering, vibration, structural integrity, composite beam, Mechanical engineering and machinery, Physics, Mechanical Engineering, Mechanics of Materials, Computational Mechanics, Signal Processing
      Subjects:Technology > Mechanical engineering and machinery
      Science > Physics
      Department:Faculty of Engineering > Mechanical and Aerospace Engineering
      Depositing user: Pure Administrator
      Date deposited:02 Aug 2011 13:30
      Last modified:28 Feb 2021 01:14
      Related URLs:
      URI:https://strathprints.strath.ac.uk/id/eprint/32370
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