Une version sous-structurée de la TVRC pour le traitement de liaisons dissipatives variées en moyennes fréquences

Olivier Dorival , Philippe Rouch (1) , Olivier Allix (1)

1 LMT - Laboratoire de Mécanique et Technologie

The response of structures under medium frequency vibration load strongly depends on the dissipative phenomena, which, in the case of assemblies, are localized, for the main part, in the joints between substructures. Their mo- delization is not definitively established, and it is interesting to use a method allowing to easily change de joints models, in order to identify them. This paper is dedicated to a commode strategy to compute different complex joints (including heterogeneous stiffness, mass and damping) in medium frequency vibrations. We use the Variatio- nal Theory of Complex Rays (VTCR), which, besides its very low computational cost, emphasizes the modelization of joints between substructures. In order to get the best of this formulation, a substructured version of the VTCR is derived, and elaborate joints model are implemented.

Domaines: Mécanique [physics]

Olivier Dorival, Philippe Rouch, Olivier Allix. Une version sous-structurée de la TVRC pour le traitement de liaisons dissipatives variées en moyennes fréquences. 17e Congrès Français de Mécanique, 2005, Troyes, France. 6 p. ⟨hal-01023403⟩