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.
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Ajili, R., Bareille, O., Bouazizi, ML., Ichchou, MN., Bouhaddi, N. (2017). Parameter Identification of a Sandwich Beam Using Numerical-Based Inhomogeneous Wave Correlation Method. In: Fakhfakh, T., Chaari, F., Walha, L., Abdennadher, M., Abbes, M., Haddar, M. (eds) Advances in Acoustics and Vibration. Applied Condition Monitoring, vol 5. Springer, Cham. https://doi.org/10.1007/978-3-319-41459-1_7
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DOI: https://doi.org/10.1007/978-3-319-41459-1_7
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