v2.06.100 SHLL100 - Harmonic response of a bar by dynamic substructuring

Summary:

The field of application of this test concerns the dynamics of structures, and more particularly the calculation of harmonic response by dynamic substructuring.

The aim is to calculate the harmonic tension-compression response of a free‑embedded beam modelled by « bar » elements. The modelled structure is damped (Rayleigh damping by elements).

The reference results are derived from a direct harmonic calculation. This test therefore makes it possible to validate the tools for calculating harmonic response by substructuring implemented in Code_Aster and more particularly:

• taking into account depreciation by element,

• the calculation of the second member including the harmonic load,

• the reproduction of the harmonic response on a skeleton mesh, including the displacement fields, speed and acceleration fields.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Initial conditions
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. Uncertainty about the solution
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 4. Summary of results