A model and numerical method in the medium frequency range for vibroacoustic predictions using theory of structural fuzzy

Christian Soize (1)

1 ONERA - The French Aerospace Lab [Châtillon]

In linear dynamical analysis of complex mechanical systems, the structural fuzzy is defined as the set of minor subssytems that are connected to the master structure but are not accessible by classical modeling. A global probabilistic modeling of the structural fuzzy is proposed to improve the calculated estimates of the MF vibration in the master structure and of the far field radiated by itself in or out the context of the acoustic scattering. Two probabilistic constitutive equation laws of the structural fuzzy are constructed. A numerical simulation on standard structures and on submerged complex industrail structure are shown.

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

Christian Soize. A model and numerical method in the medium frequency range for vibroacoustic predictions using theory of structural fuzzy. Journal of the Acoustical Society of America, 1993, 94 (2), pp.849-866. ⟨10.1121/1.408186⟩. ⟨hal-00770298⟩