Parameter identification of a sandwich beam using numerical-based inhomogeneous wave correlation method

R. Ajili, O. Bareille, M. L. Bouazizi, M. N. Ichchou, N. Bouhaddi

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations

Abstract

To achieve low calculation-cost structural identification process, a numerical-based Inhomogeneous Wave Correlation (IWC) method is proposed in this paper as an extension to the experiment-based IWC. It consists, in a wave propagation framework also called wavenumber space (k-space), on identifying the propagation parameters such as the wavenumber and the spatial damping from the Frequency Response Functions (FRFs) computed using numerical simulations. The proposed method is applied to a sandwich beam with honeycomb cores in flexural vibration. Compared to its implementation based on experimentally-measured FRFs, the proposed numerical-based IWC proves to be an efficient tool for more inner structural parameter identification in wide frequency band with respect to the Mc Daniel method considered as reference.

Original languageEnglish
Title of host publicationApplied Condition Monitoring
PublisherSpringer
Pages65-75
Number of pages11
DOIs
StatePublished - 2017

Publication series

NameApplied Condition Monitoring
Volume5
ISSN (Electronic)2363-6998

Keywords

  • Damping
  • Honeycomb-core sandwich
  • Identification
  • Inhomogeneous wave correlation
  • Wavenumber space

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