v2.01.024 SDLD24 - System of two independent spring weights under forced harmonic stress

Summary

This test case consists in calculating the damped transient response of a free-embedded system of two linear spring weights, subjected to an imposed mono-support acceleration.

Its objective is to validate the methodology consisting in calculating the modes by blocking one and then the other of the two masses. A unique modal base is created based on these two modes. A dynamic calculation is then carried out using modal damping deduced from these modes.

• 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. Benchmark results
  • 2.2. Uncertainty about the solution
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 4. Summary of results
• 5. References