4.2.11. Structural Control (SrvD)

The Structural Control module within ServoDyn is used to simulate tuned mass dampers and tuned liquid column dampers. This module also provides an option for applying a force time series load at the location of the Structural Control node.

The location of the StC node is given in the main ServoDyn input file (see Section 4.2.10.1.2.11 and Section 4.2.11.1.2). These may be mounted at the nacelle, tower, blade, or platform. Multiple StC’s may be placed at each location, each with it’s own input file. Output channels from the StC module are handled by ServoDyn (see Section 4.2.10.1.2.14 for details).

• 4.2.11.1. Input Files
  • 4.2.11.1.1. Units
  • 4.2.11.1.2. Structural Control Locations
  • 4.2.11.1.3. Structural Control Input File
  • 4.2.11.1.4. StC Degrees of Freedom
  • 4.2.11.1.5. StC Location
  • 4.2.11.1.6. StC Initial Conditions
  • 4.2.11.1.7. StC Configuration
  • 4.2.11.1.8. StC Mass, Stiffness, & Damping
  • 4.2.11.1.9. StC User-Defined Spring Forces
  • 4.2.11.1.10. StructCtrl Control
  • 4.2.11.1.11. TLCD – Tuned Liquid Column Damper
  • 4.2.11.1.12. Prescribed Time Series
• 4.2.11.2. Theory Manual for the Tuned Mass Damper Module in OpenFAST
  • 4.2.11.2.1. Theoretical Background
  • 4.2.11.2.2. Code Modifications
  • 4.2.11.2.3. Acknowledgements
• 4.2.11.3. TLCD: Derivations of Equation of Motion
  • 4.2.11.3.1. Definitions:
  • 4.2.11.3.2. Right Vertical Liquid Column
  • 4.2.11.3.3. Left Vertical Liquid Column
  • 4.2.11.3.4. Horizontal Liquid Column
  • 4.2.11.3.5. Orthogonal TLCD
• 4.2.11.4. References