v2.02.011 SDLL11 - Free-free thin circular ring

Summary:

This test case makes it possible to test the frequencies and vibration modes of a free-free circular ring.

Eight models are carried out, for each of them the modeling and the type of mesh tested are specified.

The natural frequency search method used is the Sorensen method for the A, B, C, C, D, E, F, G, K models and the Lanczos method for the I modeling.

• 3D models

  • Modeling \(A\): mesh HEXA20

  • Modeling \(B\): mesh HEXA8

  • Modeling \(C\): mesh PENTA15

  • Modeling \(D\): mesh TETRA10

• Modeling POU_D_T

  • Modeling \(E\): mesh SEG2

• 2D modeling

  • Modeling \(F\): mesh QUAD8

  • Modeling \(G\): mesh QUAD8

  • Modeling \(I\): mesh QUAD8

• Modeling COQUE_SOLIDE

  • modeling \(K\): mesh HEXA9

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
• 2. Reference solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Reference quantity
  • 2.3. Reference quantity and result
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling A
  • 3.2. Tested sizes and results
• 4. B modeling
  • 4.1. Characteristics of B modeling
  • 4.2. Tested sizes and results
• 5. C modeling
  • 5.1. Characteristics of C modeling
  • 5.2. Tested sizes and results
• 6. D modeling
  • 6.1. Characteristics of modeling D
  • 6.2. Tested sizes and results
• 7. E modeling
  • 7.1. Characteristics of modeling
  • 7.2. Tested sizes and results
• 8. F modeling
  • 8.1. Characteristics of F modeling
  • 8.2. Tested sizes and results
• 9. G modeling
  • 9.1. Characteristics of G modeling
  • 9.2. Tested sizes and results
• 10. Modeling I
  • 10.1. Characteristics of modeling I
  • 10.2. Tested sizes and results
• 11. K modeling
  • 11.1. Characteristics of K-modeling
  • 11.2. Tested sizes and results
• 12. Summary of results