Follow-up question:
I am trying to impose a periodic pressure load (with different phasing) on each face element of a fem. I have the I-DEAS help file which describes "Universal Dataset Number 790" with a Revision Date of 01-MAR-1998. The description does not define what a "time variation number" is, in Record 5. If zero or -1, the load is not time dependent, but what does a greater integer mean? The final example in the help file shows 1, 3, and 12 as other possible "time variation numbers".
Also, the pressure value is replaced by a "multiplier" in Record 4 if the load is time dependent. Is this a multiplier on the first load (and so of any magnitude), or on the load amplitude (and so a sinusoidal between 1 and -1), or something else? I looked for more information on the Internet without any applicable results. Is this Universal Dataset specific to I-DEAS or intended to work between systems? Thanks for any help!
gdmw
Geoff Wilkie