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Shock response spectrum analysis

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cavva78

Mechanical
Joined
Feb 13, 2008
Messages
24
Location
IT
Dear NX.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
 
Hi Marco,
use large mass method. Refer advanced dynamic analysis guide.
use these param cards to specify the shock specturm


param,scrspec,0
param,option,xxxxxx
dti,specsel,0
dit,specsel,1,,A,tableid,,0.05


i hope this helps.

Regards
KVel
 
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