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Applying unevenly distributed pressure

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Pingen

Mechanical
Feb 8, 2007
80
Hi,

I'm applying an uneven pressure on a set of nodes. The magnitude of the pressure is a function of a spatial coordinate. I've defined the relationship between the pressure and the coordinate in a table. I believe that this table is correct.

Yet, the pressure seems homogeniously destributed on the nodes. What might cause this problem, and how can I fix it? Is it not a bad idea to apply pressure on nodes?

Pingen
 
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Tabular loadings require a coordinate system to be used as the reference for their load vs. position. Take a look at the *dim command and ensure that you have ALL fields properly specified for the table (CSYS and type of loadings included). Then, make sure that you have a local coordinate system defined for the loading and that it's properly positioned subsequent to applying the pressure.

-Brian
 
Thanks Brian,

Something else have come up that I need to deal with, but I'll keep your post in mind when I look at the problem next time.

Pingen
 
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