Defining a Force Output Using an Entity

  1. Select Entity from the Output Method drop-down menu.
  2. Click the arrow next to the entity collector to access an entity drop-down menu and select one of the available options.
  3. Click the entity collector and select the desired entity from the modeling window, or double-click the entity collector to display the Model Tree (from which the desired entity can be selected).
  4. Click the Ref Marker collector and select the desired reference marker.
    The default marker is the global frame.
  5. For an entity other than Body, Select I Marker, J Marker, or Both from the drop-down menu next to the Ref Marker collector.
    Selecting I Marker results in defining the output for Body 1 relative to Body 2 only. Selecting J Marker results in defining the output for Body 2 relative to Body 1 only. Selecting Both defines both of these outputs.
  6. For a Body entity, select General reference frame from the Reference Type drop-down menu and manually select a reference frame for the output, or select Predefined reference frame and select a pre-defined marker for the output.
    Option Description
    Lprf Calculates outputs with respect to the local park reference frame (or body center of mass marker) of the body.
    Global Calculates outputs with respect to the global reference frame of the model.
    Local Calculates outputs with respect to the marker of the individual connecting entity. (for example, an output on a joint connecting the body will have its marker (I or J ) as its reference frame).