u2.07.05 Implementation of calculation by dynamic substructuring

Summary:

The purpose of this document is to help and give advice to users in carrying out a study using the dynamic substructuring technique.

First, the general approach for implementing the technique is presented.

The sequences of operations required in order to obtain usable results are then described. The presentation is illustrated by three examples dealing with a modal calculation, a transient response calculation, and a harmonic response calculation.

• 1. What does dynamic substructuring consist of?
• 2. Why use dynamic substructuring?
• 3. A short reminder of the methodology
• 4. Implemented in Code_Aster
  • 4.1. Notion of dynamic macro-element
  • 4.2. The conduct of a study
  • 4.3. Practical advice
• 5. Some calculation examples
  • 5.1. An example of modal calculation
  • 5.2. An example of calculating a transient response
  • 5.3. An example of harmonic response calculation