Simulation > Creo Ansys Simulation > Running Simulation Studies > Diagnostics for Creo Ansys Simulation
Diagnostics for Creo Ansys Simulation
While working on a simulation study, you can check the model, the status of a study, the mesh, and results using different tools provided in the software. Use the following tools to get more information about existing or potential issues and how to resolve them:
• Notification Center—Information about failed objects on opening the application.
• Simulation Study Check—Runs preprocessor diagnostics.
• Process Manager—Monitor the mesh generation and study run.
• Notification Center—On opening Creo Ansys Simulation you get a notification about failed simulation objects. Failed simulation objects can be viewed in the Notification Center and you can then make corrections to the model geometry or simulation objects as required. Failed simulation objects also display a failed status in the Simulation Tree.
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A failed object does not prevent mesh generation or a simulation study run unless it is the only load or constraint in the study that is a failed object.
For example, if a feature that you delete or suppress in Creo Parametric has a load applied to it in Creo Ansys Simulation, then you see a regeneration error in the Notification Center, and the object displays a failed status in the Simulation Tree.
• Study Check—After you define a study and simulation inputs, click Ansys Simulation > Run > Study Check to run a preprocessor check before running the study. The study check reports the following information:
◦ Lists all simulation objects that are defined in the model.
◦ Provides a status on each object in the model as follows:
▪ —Object is valid.
▪ —Warning message indicates missing object or object that could have a potential issue and affect your results but does not prevent the simulation study from running. Click More info to view the log file and correct the object.
▪ —Error message indicates missing, invalid or faulty object. Click More info to view the log file and correct the object. The study (or mesh generation) cannot run until errors are fixed.
The following table lists the errors and warning message that are reported by the study check.
Object
Error Message
Warning Message
Simulation Study
Geometry
Your model does not have any valid geometry defined.
Some models do not have any valid geometry defined and will be ignored.
Only applicable to assemblies.
Structural
Modal
Thermal
Material
Some models do not have a valid material assigned. (In the case of assemblies.)
Your model does not have a valid material assigned. (In the case of parts)
Some bodies in your model do not have a valid material assigned. (multi-body part)
Structural
Modal
Thermal
Structural Constraints
Your model does not have any constraints defined. (applicable for a model that has no constraints, no springs and no joints)
Your model does not have any constraints defined. (no constraints, but at least one spring or joint)
Structural
Modal
Structural Loads
Your model does not have any loads defined. (in case of no loads).
Structural
Boundary Conditions
Your model does not have any boundary conditions defined.
Thermal Studies
Contacts
Your model does not have any contacts defined.
Structural
Modal
Thermal
Other
Some objects in your model are invalid or defined in a way that prevents the simulation from running.
Some objects in your model are invalid or defined in a way that might affect the quality of results.
Structural
Modal
Thermal
For the error or warning messages in the Other category if you click More info you get details about the issue with the model. The following table lists the issues that could result in incorrect results.
Issue
Error or Warning Message
Quilt referenced without a shell.
Warning: Some objects in your model reference quilts that do not have shells defined and will be ignored.
Curve referenced without a beam.
Warning: Some objects in your model reference curves that do not have beams defined and will be ignored.
A constraint or load is defined on a vertex.
Warning:Some constraints or loads in your model reference vertices. This may lead to singularities in results
Failed objects
Warning: Some objects in your model are failed and will be ignored. Please check the Notification Center for more details.
Mass without a gravity or acceleration load.
Warning: There are no gravity/acceleration loads applied to your top model. All mass objects will be ignored.
Path to the study results folder is invalid.
Error: The path to the result folder is invalid. The path should not include Unicode characters and can have a maximum length of 248 characters only. The folder is set in Creo settings or via the configuration option creo_ansys_run_folder
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The study check is also automatically run when you run a simulation study or mesh. The report is displayed only if there are issues with the model.
• Process Manager—Provides information about the mesh, study and results tasks running on the solver for a session. For a study that is in progress or running on the Ansys solver you can view the diagnostics file by clicking and then selecting Diagnostics to open the diagnostics file.
The diagnostics file from the solver is a detailed log of the study run. Some experience with the Ansys solver might be required to interpret it.
For a meshing-only (mesh generation) process, when meshing completes, click Diagnostics to see the following information:
◦ Number of nodes generated.
◦ Number of meshing elements generated.