transient thermal analysis error
transient thermal analysis error
(OP)
when i try to run a transient analysis for a thermal problem, i get the warning that reads:
"Present time 0 is less than or equal to the previous time in the transient analysis"
I click "proceed"
then i get the error that read:
"the step data was check and there were errors found"
could someone tell me what this error means?
I have noticed that if i do a steady state solution prior to transient, i dont get the error. Is it some kind if initialization error or am i just doing it wrong?
thanx in adv
Robin
"Present time 0 is less than or equal to the previous time in the transient analysis"
I click "proceed"
then i get the error that read:
"the step data was check and there were errors found"
could someone tell me what this error means?
I have noticed that if i do a steady state solution prior to transient, i dont get the error. Is it some kind if initialization error or am i just doing it wrong?
thanx in adv
Robin





RE: transient thermal analysis error
Regards,
Alex
RE: transient thermal analysis error
eg.. if the first load step was to apply 450 degrees at node 1(end of time step is say 5sec, with step size 1sec)... and i apply the next load, say 500 degrees on node 7(for the same time duartion and step size), would the end of time step be 10sec with 1 sec time step size or end of time step be 5sec with 1 sec time step size?
thanx
Robin
RE: transient thermal analysis error
every solve command needs the end time, so:
/solu
nsubst,"any","any","any"
time,5
.
.
.
solve
/solu
time,10
.
.
.
Solve
this will make the new end time and wont change your time step increments