Set Nodal Frequency for Natural Frequency in Algor

[IUPhysx13]

I'm designing a source mass for our experiment at IU and we have the 5 natural frequencies and nodes and now we would like to see what happens when we run a different frequency at a certain node e.g. 1266Hz at node 2 when node 2 is normally 1014.6. We are primarily concerned with how the shape of the part will change. Can anyone help me with how to set what the frequency is.

 

[electricpete]

Shouldn't this be at another forum?
forum384

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(2B)+(2B)' ?