Compare CAD and Mesh

The native CAD model is imported into HyperMesh along with a user-defined parameter and criteria files. The CAD model is batch meshed and the finite element (FE) mesh created is compared with the CAD model using advanced CAD-FE comparison. A reference report is also created, indicating any change in the meshed profile with respect to geometry.

1. Click the CAD tab then the CAD > Mesh tab.

   
   
   Figure 1.

2. Select the HyperWorks version number.
3. Enter a Tolerance value for use in the comparison.
4. Activate any of the check boxes to assist in loading files.

   Option	Description
   Same as Criteria	If there is more than one model file loaded in the input table, there is no need to load the Criteria file in each row. If you activate this check box, HVVH loads the first Criteria file in each row for all selected input files
   Same as Parameter	If there is more than one model file loaded in input table, there is no need to load a Parameter file in each row. If you activate this check box, HVVH loads the first Parameter file in each row for all selected input files.
   BM (Batch Mesher)	This check-box allows you to load a batch mesher session file and executes the batch mesher.

5. Use the Input file(s) section to load a CAD model file(s), parameter file(s) and criteria files(s).
   Tip:

   • Click in the cell for each file type to activate it. Once the cell is active, click to display the file browser and load only selected files. You can also add multiple files.
   • Click to add a row to the table.
   • Click to delete a row from the table.
6. Select an output directory.
7. Click Compare
   The CAD model is converted to FE Mesh using the Batch Mesher (the criteria and parameter files are the input data).

   The CAD > FE comparison report is generated for the HyperMesh finite element mesh and the original CAD file to report the accuracy or deviation from the original geometry and meshed data.

8. Under Mesh Status, click Status to return the status of the meshing operation. In case of failure, it will indicate the same. Under Report, click Report to return a report that compares the CAD and FE model. The report is written to a text file.