Formulation of an equation of diffusion for heterogeneous rods
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)
AbstractThe 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.
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