r4.02.02 Elements for coupling fluid-linear structure interaction with inert fluid

Summary:

The elements described here make it possible to perform calculations of the frequencies and natural modes of a structure coupled to a fluid. They also allow the calculation of acoustic response.

After the formulation of the fluid-structure coupling problem, this document describes the approach followed to implement the new finite elements.

• 1. Introduction
• 2. Vibro-acoustic coupling
  • 2.1. Presentation
  • 2.2. Formulation of the vibro-acoustic problem
  • 2.3. Finite element models of the coupled problem
• 3. Use
  • 3.1. Euler buckling, geometric stiffness
• 4. Bibliography