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ORIGINAL PAPER
Identification based on a finite element model of an impact force occurring on a composite structure
1
Department STIC, National School of Applied Sciences, Abdelmalek Essaadi University
Tetouan, MOROCCO
2
MASGC, National School of Applied Sciences, Abdelmalek Essaadi University, Tetouan, MOROCCO
3
National School of Applied Sciences, Abdelmalek Essaadi University, Alhoceima, MOROCCO
Publication date: 2023-03-01
International Journal of Applied Mechanics and Engineering 2023;28(1):23-36
KEYWORDS
ABSTRACT
Based on the inverse approach and the finite element method, the quality of a reconstructed signal is discussed in this work. The responses caused by a distributed impact on a portion of a composite structure can be recovered using dynamic analysis. The structure is thought to be complex and made up of two different-sized plates made of two different materials. The robustness of the inversion method was studied, as well as the sensitivity of the numerical method compared to modal truncation and sampling of the frequency response function (FRF). Once the FRF had been identified, regularized deconvolution as per generalized singular value decomposition was used to reconstruct the impact signal characteristics. It was revealed that only one mode is required to reconstruct the impact signal.
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