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Load vector based damage localization with rejection of the temperature effect

Résumé : The Stochastic Dynamic Damage Locating Vector (SDDLV) approach is a vibration-based damage lo-calization method based on both a finite element model of a structure and modal parameters estimated from output-only measurements in the damage and reference states. A statistical version of the approach takes into account the inherent uncertainty due to noisy measurement data. In this paper, the effect of temperature fluctuations on the performance of the method is analyzed in a model-based approach using a finite element model with temperature dependent parameters. Robust damage localization is carried out by rejecting the temperature influence on the identified modal parameters in the damaged state. The algorithm is illustrated on a simulated structure.
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Contributor : Michael Döhler Connect in order to contact the contributor
Submitted on : Wednesday, May 29, 2019 - 3:28:59 PM
Last modification on : Friday, June 24, 2022 - 4:05:52 AM


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  • HAL Id : hal-02143742, version 1



Md Delwar Hossain Bhuyan, Nicolas Le Touz, Guillaume Gautier, Michael Dohler, Falk Hille, et al.. Load vector based damage localization with rejection of the temperature effect. IOMAC 2019 - 8th International Operational Modal Analysis Conference, May 2019, Copenhague, Denmark. pp.10. ⟨hal-02143742⟩



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