v2.01.025 SDLD25 - Spring mass system with proportional viscous damper (spectral response)

Summary

This unidirectional problem consists in carrying out a spectral seismic analysis of a mechanical structure composed of a set of spring weights with viscous dampers subjected to seismic stress provided in the form of a response spectrum of pseudo-accelerating oscillators.

Through this problem, we test the modal combination SRSS of the COMB_SISM_MODAL [U4.54.04] operator. In addition, several pre-processing operators are being tested; DEFI_FONCTION and DEFI_NAPPE.

This test is also a POUX resorption test. There is no difference between the Code_Aster results and the POUX results.

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