Formulation of an equation of diffusion for heterogeneous rods

Authors

  • 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

Keywords:

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)

Abstract

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.

Published

2000-09-01

How to Cite

1.
Mencik J, Berry A, Guyader J. Formulation of an equation of diffusion for heterogeneous rods. Canadian Acoustics [Internet]. 2000Sep.1 [cited 2021Feb.26];28(3):114-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1316

Issue

Vol. 28 No. 3 (2000)

Section

Proceedings of the Acoustics Week in Canada

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