v2.02.105 SDLL105 - Pipe subject to random fluid excitation sources

Summary:

A straight pipe embedded at one end in the wall of a tank and supporting a mass at the other end is subjected to fluid excitation.

Excitation is defined by its power spectral density in the form of « white noise ».

It covers all source types implemented in the code:

• source of volume flow,

• source of mass flow,

• pressure source,

• source of strength,

• imposed effort.

We are interested in the power spectral density of the response in a degree of freedom of pressure located on the node supporting the mass.

The random dynamic response is given here in absolute motion.

• 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
  • 2.3. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. notes
  • 3.4. Non-regression values tested
• 4. Summary of results