v5.01.107 SDND107 - Release and seismic excitation of a system with a non-linear viscous damper of the « Zener » type

Summary:

We test the response of the nonlinear viscous damper behavior model DIS_VISC, of the « generalized Zener » type, cf. [R5.03.17].

The aim is to validate the viscous law in linear and non-linear dynamics. The following tests are carried out:

• 1. in linear dynamics (operator DYNA_NON_LINE) in a case of letting go, using an assembly of linear discrete elements as a basis of comparison for the « Generalized Zener » law of behavior.

• 2. in non-linear dynamics (operator DYNA_NON_LINE) with a sinusoidal acceleration then a zero acceleration.

• 3. in transient non-linear dynamics (operator DYNA_VIBRA or DYNA_TRAN_MODAL with an Euler-type time diagram) with a sinusoidal acceleration then a zero acceleration. It’s the same study as B. The lawsuit is also validated.

• D, E) in transient non-linear dynamics (operator DYNA_VIBRA or DYNA_TRAN_MODAL with two Runge-Kutta time schemes of order 5 and 3, with adaptive steps) with a sinusoidal acceleration then a zero acceleration. It’s the same study as B. The lawsuit is also validated.

This behavior is also validated with the STAT_NON_LINE command in SSND101 [V6.08.101].

• 1. Reference problem
  • 1.1. Device description
  • 1.2. Modellations
  • 1.3. Material properties
  • 1.4. Boundary conditions and loads
• 2. Reference solutions
  • 2.1. Calculation method used for reference solutions
  • 2.2. Uncertainty about the solution
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Boundary conditions and loads
  • 3.4. Discretization in time
  • 3.5. Tested sizes and results
• 4. B, C, D, E models
  • 4.1. Boundary conditions and loads
  • 4.2. Tested sizes and results
• 5. Summary of results