Formulation of an equation of diffusion for heterogeneous rods

Auteurs-es

  • J.M. Mencik G.A.U.S., Mechanical Engineering Department, Université de Sherbrooke, Sherbrooke, Que. J1K 2R1, Canada
  • A. Berry G.A.U.S., Mechanical Engineering Department, Université de Sherbrooke, Sherbrooke, Que. J1K 2R1, Canada
  • J.L. Guyader Lab. Vibrations Acoustique l'INSA L., 20 Avenue Albert Einstein, 69621 Villeurbanne Cedex, France

Mots-clés :

Boundary conditions, Computer simulation, Couplings, Elastic moduli, Heat transfer, Plates (structural components), Statistical methods, Vibration measurement, Energetic diffusion, Geometrical discontinuities, Heterogeneous rods, Mean potential energy density, Statistical energy analysis (SEA)

Résumé

The vibratory behavior of heterogeneous structures was characterized considering the heterogeneity density and the high frequency. Statistical energy analysis (SEA) was used to characterize mean energies of lightly coupled subsystems. The energy flow method is based on the derivation of the equation of diffusion for homogeneous structures. The theoretical results were validated by a numerical simulation for a heterogeneous rod excited by a power source.

Fichiers supplémentaires

Publié-e

2000-09-01

Comment citer

1.
Mencik J, Berry A, Guyader J. Formulation of an equation of diffusion for heterogeneous rods. Canadian Acoustics [Internet]. 1 sept. 2000 [cité 29 avr. 2026];28(3):114-5. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1316

Numéro

Vol. 28 No. 3 (2000)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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