Hi,
Is there a way to directly extract nodal forces from an entity (blue line) as listed below? I'm assuming that NASTRAN can only extract elemental values. Is this true?
Thank you.
Solved! Go to Solution.
Solved by g.ceruti. Go to Solution.
Solved by John_Holtz. Go to Solution.
There is a result named Internal Forces that is given at the nodes, but Inventor will not display those results. (It does show another result named internal forces, but that is the sum of internal forces which is almost always zero.)
You could use FNO Reader to extract these forces:
[85020] NODE 3 T1 INTERNAL FORCE | [85021] NODE 3 T2 INTERNAL FORCE | [85022] NODE 3 T3 INTERNAL FORCE | [85023] NODE 3 R1 INTERNAL MOMENT | [85024] NODE 3 R2 INTERNAL MOMENT | [85025] NODE 3 R3 INTERNAL MOMENT |
Thank you @John_Holtz
I want to extract forces to size welds. I think the linear mesh approach will work for me, albeit, I'll need an additional analysis
I'm thoroughly confused with the FNO results. From what I understand, the FNO reader is giving me interpolated values of centroidal elemental forces at the nodes? What is the orientation of the NODE with respect to the coordinate system?? For example, in the image below, I need the nodal forces at the toe of the weld, but NASTRAN provides all four nodes. How can I identify only the relevant nodal values?
hi @darrenlovesmusic ,
try with these Case Control commands (or a combinations of them):
to limit the output size, use previously defined SET on each command
if you want, you can get an output on a text file, instead of a binary FNO file.
you have to select the PRINT option in the output requests.
edit the *nas file, change the output option, run the analysis:
ELFORCE(PLOT,CORNER) =ALL ==> ELFORCE(PRINT,CORNER)= "element set number"
GPFORCE(PLOT) = ALL ==> GPFORCE(PRINT) = "node set number"
and so on
Sorry, but I never used the FNO reader, and I can't guaratee what is written in the FNO file, maybe @John_Holtz may help you.
for sure, the rule for nastran output results are:
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