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Communication Dans Un Congrès Année : 2002

Application of the likelihood method to the analysis of waves in elastic and viscoelastic rods

Résumé

In this paper, we are interested in separating waves in elastic and viscoelastic rods propagating in opposite direction. N strain and P velocity measurements are taken into account. This application of the likelihood method gives a solution in the frequency domain. Using the inverse Fourier transform, one can recover the strain, stress, displacement and velocity at any section of the rod. In experimental conditions, the results are stable against noise when N+P>2 and NP ≠ 0.
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Dates et versions

hal-01007897 , version 1 (26-05-2018)

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Ramzi Othman, Gérard Gary, Marie-Noëlle Bussac, Pierre Collet. Application of the likelihood method to the analysis of waves in elastic and viscoelastic rods. International Conference on Acoustics Mechanics and the Related Topics of Mathematical Analysis, Jun 2002, Fréjus, France. ⟨10.1142/9789812704405_0035⟩. ⟨hal-01007897⟩
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