Shock response spectrum analysis

[cavva78]

Dear Nastran/FEMAP users,
I have to perform a SRS analysis, applying a SRS load as follows to an assembly model:

500 Hz -> 500 g
3000 Hz -> 2000 g
10000 Hz -> 2000 g

I have never done that: how do I apply this load to my model? Is there any tutorial or example available?

Thanks

Marco