v2.02.132 SDLL132 - Specific modes of a structure made of multifibre beams

Summary:

This test concerns the validation of option MASS_INER, as well as the calculation of the natural modes of the framework when the model contains POU_D_TGM (modeling A) or POU_D_EM (modeling B) (multifibre beams). The results of the reference solution are obtained by doing the same study but with a model of POU_D_TG (modeling C) and POU_D_E (modeling D).

This test makes it possible to validate, by doing a modal analysis of the structure:

• linear finite elements of type POU_D_TGM and type POU_D_EM.

• the results of the orders: POST_ELEM, NORM_MODE, EXTR_MODE.

• the results of CALC_MODES.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Mechanical characteristics of beams
  • 1.3. Material properties
  • 1.4. Boundary conditions
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. Uncertainty about the solution
• 3. Modeling A
  • 3.1. Characteristics of modeling and meshing
  • 3.2. Tested sizes and results
• 4. B modeling
  • 4.1. Characteristics of modeling and meshing
  • 4.2. Tested sizes and results
• 5. C modeling
  • 5.1. Characteristics of modeling and meshing
  • 5.2. Tested sizes and results
• 6. D modeling
  • 6.1. Characteristics of modeling and meshing
  • 6.2. Tested sizes and results
• 7. Summary of results