TAGGED: apdl, mechanical
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March 26, 2025 at 9:16 pm
mark.gjeloshaj
SubscriberI have an analysis i'm performing with multiple time steps and i'm trying to move a pilot node imbetween the time steps. I'm doing this in mechanical with APDL command snippets.I have 5 command snippets and 6 time steps. The intention was to move the node for each step 2,3,4,5, and 6 using identical command snippets that work via step selection mode. I noticed that it is skipping steps 1/2/3/4/5 and just solving step 6 outputting only one time step. an example of one of the snippets is below:
compression= -.741
/PREP7 csys,0 NSEL,S,,,GP2
N,GP2, NX(GP2), NY(GP2)+compression, NZ(GP2)
ALLSEL,ALL
/Solution
I think the issue is due to the solver trying to enter /prep7 between each command snippet. is there anyway around this? LSwrite? I would think its possible to define time steps when a node is moved.
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March 27, 2025 at 2:41 pm
dlooman
Ansys EmployeeHi Mark,
I think you're right about the reason. When I do something like you're doing I try not to leave solution. I think you can issue the command NMOD,GP2,NX(GP2), NY(GP2)+compression, NZ(GP2) without leaving solution. You'd have to test whether the MPC contact really got updated. Or you could issue antype,,restart after re-entering solution.
Dave
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