Define the Excited Nodes

Next, we must specify the nodes to receive the applied excitation, the type of excitation (force or acceleration), and the frequency index.

1. Click the Excited Nodes tab. Then, make the following changes to the first and only row of the Excited Nodes table:
   1. Click in the Node Number column and type the first previously recorded node number, overwriting Base, which is the default load location.
   2. Click in the Load Type column and select Force Input from the drop-down menu.
2. Click (New) to add another row to the Excited Nodes table.
   1. Type 2 in the Excited Nodes Set ID dialog box and click OK.
   2. Click in the second row of the Node Number column and type the second previously recorded node number, overwriting Base.
   3. Click in the second row of the Load Type column and select Force Input from the drop-down menu.
3. Click (New) to add another row to the Excited Nodes table.
   1. Type 3 in the Excited Nodes Set ID dialog box and click OK.
   2. Click in the third row of the Node Number column and type the third previously recorded node number, overwriting Base.
   3. Click in the third row of the Load Type column and select Force Input from the drop-down menu.
4. Click (New) to add another row to the Excited Nodes table.
   1. Type 4 in the Excited Nodes Set ID dialog box and click OK.
   2. Click in the fourth row of the Node Number column and type the fourth previously recorded node number, overwriting Base.
   3. Click in the fourth row of the Load Type column and select Force Input from the drop-down menu.
5. Click Apply to save the settings.

Note: We are keeping the following default parameters for all four excited nodes:

• Load Direction = X Direction
• Frequency Index = 1
• Scale Factor = 1
• Phase Shift (Degrees) = 0 (Note: This value is only applicable when the Consider loads of the Same Frequency option is enabled.)

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