Choose substeps

- September 16, 2019 at 4:28 pm
  
  mekafime
  Subscriber
  
  Hi
  
  I am having errors when analyzing my model, how can I calculate the number of substeps to use?
  
  Initial:
  
  Minimum:
  
  Maximum:
  
  Thanks
- September 16, 2019 at 5:04 pm
  
  peteroznewman
  Subscriber
  
  Turn on Automatic Time Stepping and let the solver decide on the number of substeps it needs.
  
  The initial would be whatever you are currently using since the solve gets started, like 400.
  
  The minimum could be 10 times smaller than you are currently using, like 40.
  
  The maximum substeps could be 10 times larger, 4000.
- September 16, 2019 at 5:17 pm
  
  mekafime
  Subscriber
  
  Hi Peter
  
  in automatic I have this
  
  But I have an error.
- September 16, 2019 at 6:25 pm
  
  peteroznewman
  Subscriber
  
  What error?
- September 16, 2019 at 7:32 pm
  
  mekafime
  Subscriber
  
  Hi Peter
  
  the distortion in some elements, so to solve the mesh is refined or the steps are increased, I am triying increase the steps.
- September 16, 2019 at 8:45 pm
  
  peteroznewman
  Subscriber
  
  Smaller substeps may not resolve the distortion error.
  
  Smaller elements may be required to resolve the distortion error.
  
  Use the Newton Raphson Residual Plots to show you which elements need to be revised.