v2.04.102 SDLV102 —Lyre with IFS dynamically substructured

Summary:

We consider the problem of determining the natural modes of a pipe filled with water in the shape of a lyre with consideration IFS.

For this purpose, various approaches are used: - a dynamic substructuring methodology using interface modes imposed for A and B models (see U2.07.07 for more details); - a global approach for C and D models whose specificity lies in its massively parallel nature. To do this, it relies on the SLEPc library.

The ability of these two approaches to represent the modal behavior of the global structure is shown.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Initial conditions
• 2. Benchmark solution
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested sizes and results
• 5. C modeling
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Tested sizes and results
• 6. D modeling
  • 6.1. Characteristics of modeling
  • 6.2. Characteristics of the mesh
  • 6.3. Tested sizes and results
• 7. Summary of results