An Energy Model for Mid-High Frequency Elasto-Acoustic Problems Using the Finite Element Method

摘要

The object of this paper is to model the fluid-structure interaction in the mid-frequency domain with an hybrid FEM-SEA method: the SEA-like method. An important point of such modelling is that many modes are necessary to describe the fluid medium. The SEA-like method is applied using a sub-structuration method. The calculation of the SEA-like matrix is therefore simplified. The method is then validated in the low- and high-frequency domains with FEM and SEA respectively.