PERMAS workshop Fluid-Structure Acoustics (FS)
Dynamic response of coupled fluid-structure acoustics
PERMAS offers the possibility to calculate both purely acoustic vibrations (uncoupled) and coupled fluid structure vibrations. The aim of the training is to show the participants the implementation in PERMAS.
In addition, the participants learn how to determine the response behavior in the time and frequency domain (coupled and uncoupled).
The focus of the training is on the coupled fluid-structure tasks and how to solve them in PERMAS. Particular importance is attached to explain to the participants how the modeling is to be carried out.
First of all, it is made clear to the user how the discretization of the fluid depends on the wavelength. All necessary modeling steps and definitions are explained using various examples. In addition, there are not always compatible meshes between the structure and the fluid. PERMAS also offers a comprehensive solution for this transition.
Another important issue is sound propagation to infinity. It is shown how PERMAS solves this task with the help of emission boundary condition elements, since finite elements can only describe a limited space. This is also illustrated using an example.
Exercises help to deepen the material and provide space for discussion.
- Topics:
- basics, special elements, boundary conditions, loads, fluid-structure-acoustics (inherent values, response), practical modelling, exercises
- Prerequisite:
- Basic knowledge in dynamics (DYN-1)