.. _SED:

Simplified ElastoDyn
======================================


This document describes the Simplified ElastoDyn (SED) module.
This module has the features the following:

- The rotor is rigid 
- One degree of freedom is used, representing the variable rotor speed
- No calculation of structural loads
- Possibility to be run with large time step
- A constant platform tilt angle 
- Compatibility with AeroDyn and AeroDisk
- Compatibility with active control of torque and yaw (and pitch)



.. only:: html

   
.. toctree::
   :maxdepth: 2

   theory.rst
   input_files.rst

..
   zrefs.rst