Contrôle actif des vibrations dans un système fluide/structure

Robu, Bogdan; Baudouin, Lucie; Prieur, Christophe

doi:10.3166/jesa.45.495-511

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…Dohnal et al [20] studied the damping of a Cantilever beam under a periodic axial force by a finite-element approach. The effects of internal and/or external lumped or distributed damping have been extensively investigated by Robu, et al, Chang, et al, Lin, et al, Chen, and Bendine, et al [21][22][23][24][25]. Capsoni et al [26] who proposed a damper design technique absorber based on modal control for controlling the vibrations of beams.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Stability Analysis of Functionally Graded Timoshenko Beams with Internal Viscous Damping Distribution

Bouamama¹,

Elmeiche²,

Elhennani³

et al. 2019

JESA

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This paper investigates the dynamic stability of functionally graded material (FGM) beams, using the Timoshenko model with internal viscous damping distribution (DIVD). It is assumed that the material properties change continuously across the thickness direction of the beam, according to the power law function for the FGM (P-FGM). The governing equations of motion were developed by the Lagrange principle. Then, the finite element method was adopted to describe unamortized natural frequencies and the damped eigenfrequencies of the dynamic system. The numerical results were compared with those available in the literature. Illustrative examples were given to show the influence of internal damping distribution, material distribution and slenderness ratio on the dynamic stability margin of FGM Timoshenko beams. The research findings provide new insights into the dynamic stability of the FGM.

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