Nodal Outputs

In addition to the named outputs in Section 4.2.7.2.2.11 above, ElastoDyn allows for outputting the full set blade node motions and loads (tower nodes unavailable at present). Please refer to the ElastoDyn_Nodes tab in the Excel file OutListParameters.xlsx for a complete list of possible output parameters.

This section follows the END statement from normal Outputs section described above, and includes a separator description line followed by the following optinos.

BldNd_BladesOut specifies the number of blades to output. Possible values are 0 through the number of blades ElastoDyn is modeling. If the value is set to 1, only blade 1 will be output, and if the value is 2, blades 1 and 2 will be output.

BldNd_BlOutNd specifies which nodes to output. This is currently unused.

The OutList section controls the nodal output quantities generated by ElastoDyn. In this section, the user specifies the name of the channel family to output. The output name for each channel is then created internally by ElastoDyn by combining the blade number, node number, and channel family name. For example, if the user specifies TDx as the channel family name, the output channels will be named with the convention of B\(\mathbf{\beta}\)N###TDx where \(\mathbf{\beta}\) is the blade number, and ### is the three digit node number.

Sample Nodal Outputs section

This sample includes the END statement from the regular outputs section.

 1END of input file (the word "END" must appear in the first 3 columns of this last OutList line)
 2---------------------- NODE OUTPUTS --------------------------------------------
 3          3   BldNd_BladesOut  - Blades to output
 4         99   BldNd_BlOutNd   - Blade nodes on each blade (currently unused)
 5              OutList     - The next line(s) contains a list of output parameters.  See OutListParameters.xlsx, ElastoDyn_Nodes tab for a listing of available output channels, (-)
 6"ALx"    -  local flapwise acceleration (absolute) of node
 7"ALy"    - local flapwise acceleration (absolute) of node
 8"ALz"    - local flapwise acceleration (absolute) of node
 9"TDx"    - local flapwise (translational) deflection (relative to the undeflected position) of node
10"TDy"    - local edgewise (translational) deflection (relative to the undeflected position) of node
11"TDz"    - local axial (translational) deflection (relative to the undeflected position) of node
12"RDx"    - Local rotational displacement about x-axis (relative to undeflected)
13"RDy"    - Local rotational displacement about y-axis (relative to undeflected)
14"RDz"    - Local rotational displacement about z-axis (relative to undeflected)
15"MLx"    - local edgewise moment at node
16"MLy"    - local flapwise moment at node
17"MLz"    - local pitching moment at node
18"FLx"    - local flapwise shear force at node
19"FLy"    - local edgewise shear force at node
20"FLz"    - local axial force at node
21"MLxNT"  - Edgewise moment in local coordinate system (initial structural twist removed)
22"MlyNT"  - Flapwise shear moment in local coordinate system (initial structural twist removed)
23"FLxNT"  - Flapwise shear force in local coordinate system (initial structural twist removed)
24"FlyNT"  - Edgewise shear force in local coordinate system (initial structural twist removed)
25END of input file (the word "END" must appear in the first 3 columns of this last OutList line)
26---------------------------------------------------------------------------------------