transient thermal analysis error

- March 7, 2024 at 1:50 pm
  
  İlker
  Subscriber
  
  NROPT,full
  THOPT,full
  
  t=10
  dt=0.1
  n=t/dt
  
  PL=5e02
  pi=acos(-1)
  dz=0.001
  rl=0.005
  vd=0.001
  tol=0.00001
  
  tamb=22
  hc=20
  
  pi=acos(-1)
  Q=PL/((pi*(2*rl*rl)/4)*dz)
  
  Tmax=400
  
  *do,i,1,n,1
  ...
  local,11,1,x_r,y_r,z_r,thxy,thyz,thzx
  csys,11
  ...
  load
  ...
  allsel,all
  outres,all,all
  
  time
  SOLVE
  FINISH
  /POST1
  set,last
  etable,erosion,temp, !create an element table
  esel,s,elab,erosion,terode !Select all elements from table above Tmax
  cm,elem_to_kill,elem
  FINISH
  /SOLU !Re enter solution phase
  NROPT, full
  THOPT, full
  ANTYPE,,rest !Restart analysis
  EKILL, elem_to_kill !kill all selected elements
  *ENDDO
  
  /PREP7
  !optional
  create,solve,mac
  /COM,skip'solve'
  *END
  
  I wonder if there is an error in the code written? I keep getting errors.
  The errors I get:
  
  *** ERROR ***                           CP =      40.312   TIME= 16:39:15
  Present time 0 is less than or equal to the previous time 0 in a
  transient analysis.
  
  *** ERROR ***                           CP =      41.000   TIME= 16:39:16
  The step data was checked and there were errors found.
  Please check output or errors file (
  C:\Users\hasan\Desktop\_ProjectScratch\Scr6EA3\file0.err ) for
  messages.
- March 8, 2024 at 3:35 pm
  
  mrife
  Ansys Employee
  
  Hi Hasan
  Check the TIME command. It has no default value for a transient analysis. So you need to specifiy a value. MIke