4.9. ExtPtfm

This document presents the ExtPtfm module. The ExtPtfm module is used to model the substructure (or support structure) using a superelement.

The presentation of the module and its application were published in the following article [ep-BSA+20] (available here) which may be used as a reference.

You can navigate the documentation using the links below:

• 4.9.1. Usage
  • 4.9.1.1. Typical sequentially coupled workflow with ExtPtfm
  • 4.9.1.2. Using the module
  • 4.9.1.3. Recommendations
  • 4.9.1.4. OpenFAST 5.0
• 4.9.2. Input Files
  • 4.9.2.1. ExtPftm Module Input File
  • 4.9.2.2. Output channels
  • 4.9.2.3. Guyan/Craig-Bampton superelement input file (provided through Red_Filename)
  • 4.9.2.4. Connections input file (provided through Conn_Filename)
  • 4.9.2.5. User modal and connection force file (provided through Force_Filename and FConn_Filename )
• 4.9.3. Theory
  • 4.9.3.1. Reduction of the equations of motion
  • 4.9.3.2. Coupling with another structure
  • 4.9.3.3. State-space representation of the module ExtPtfm
• 4.9.4. References
• 4.9.5. Example Files