Creo Simulate > Modeling Structure and Thermal Problems > Verifying Models > Checking Your Model
  
Checking Your Model
It is a good idea to check your model before you start your run to detect errors in your model that can cause:
the results of a design study to be inaccurate
the design study to terminate abnormally
You can check your model to make sure that the work you did passes Creo Simulate's validity checking. To do so, select the Info > Check Model on the Analyses and Design Studies dialog box before running your analysis or design study. As an alternative, you can start the run and click OK to use error detection during the run.
You might want to check your model more than once before starting a run to:
Check for errors that are specific to the analyses and design studies you create.
Make sure that any edits you made to your model did not create any new errors.