Nonlinear dynamical analysis for coupled fluid-structure systems

Quentin Akkaoui (1) , Evangéline Capiez-Lernout (1) , Christian Soize (1) , Roger Ohayon (2)

1 MSME - Laboratoire de Modélisation et Simulation Multi Echelle
2 LMSSC - Laboratoire de Mécanique des Structures et des Systèmes Couplés

The present research concerns the numerical dynamical analysis in elasto-acoustics, taking into account the geometrical non-linearities induced by the large displacements/deformations of the structure and assuming the internal acoustic fluid occupying an internal cavity coupled to the structure to remain in a linear range of vibration. More particularly, the modeling includes sloshing and capillarity effects on the free surface. A numerical application is presented.

Mots clés: Fluid-structure interaction; Sloshing; Capillarity; Reduced-order model; Geometric nonlinearities

Domaines: Mécanique [physics.med-ph]; Vibrations [physics.class-ph]; Acoustique [physics.class-ph]

Quentin Akkaoui, Evangéline Capiez-Lernout, Christian Soize, Roger Ohayon. Nonlinear dynamical analysis for coupled fluid-structure systems. IMAC XXXVII, A Conference and Exposition on Structural Dynamics 2019, Jan 2019, Orlando, United States. pp.151-153, ⟨10.1007/978-3-030-12391-8_20⟩. ⟨hal-02100277⟩