HyperWorks Tools

HVVH-4000: CAD Tab

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HVVH-4000: CAD Tab
HVVH-4000: CAD Tab

In this tutorial, you will learn how to use the four sub-tabs that comprise the CAD tab by:

•	Comparing CAD geometry (CAD IO)

•	Comparing CAD geometry across different HyperMesh versions (Compare Versions)

•	Comparing the original CAD geometry and an FE mesh after meshing in HyperMesh (CAD > Mesh)

•	Comparing Meshed FE geometry across different HM versions (FE-FE)

Step 1: Compare CAD geometry (CAD IO tab)

1.	From the Start menu, select All Programs > Altair HyperWorks 2017 > Tools > HyperWorks Verification and Validation Harness.

2.	Select the CAD tab, followed by the CAD IO tab.

3.	From the Import file type: drop-down menu, select the Import file type IGES.

4.	From the Export file type: drop-down menu, select STEP

5.	For HW Version, select 2017.

6.	Leave Tolerance as the default (.01).

7.	Under the Input File field, click the file folder icon, , to search for and load additional input files.

8.	Click the add file icon, , to display the file browser and load the raw_iges_data.iges file from the following location: ..\tutorials\hvvh\CAD\CADIO.

9.	For the Output directory field, use the open file icon, , to select an output directory.

10.	Click Import/Export.

11.	A report is generated based on the model re-import and comparison with the original CAD geometry, a CAD-CAD comparison. Model file import and export times, as well as import and export status are displayed.

hvvh_tut_4000_cadio_img1

In the Messages window, the run details are displayed along with the log file location.

If a difference is greater than the tolerance, it is indicated as Fail, otherwise shown to Pass.

12.	Click HTML Report to generate a detailed CAD IO report, similar to this:

hvvh_tut_4000_cadio_img2

hvvh_tut_4000_cadio_img3

hvvh_tut_4000_cadio_img4

hvvh_tut_4000_cadio_img5

hvvh_tut_4000_cadio_img6

hvvh_tut_4000_cadio_img7

Step 2: Compare CAD geometry across different HyperMesh versions (Compare Versions tab).

1.	Select the Compare Versions tab.

hvvh_tut_4000_compare_version_img1

2.	From the Import file type: drop-down menu, select the Import file type IGES.

3.	From the Export file type: drop-down menu, select STEP.

4.	For Current Version, select 2017.

5.	For Reference Version, select 14.0.0.130.

6.	Leave Tolerance as the default (.01).

7.	Under the Input File field, click the file folder icon, , to search for and load additional input files.

8.	Click the add file icon, , to display the file browser and load the raw_iges_data.iges file from the following location: ..\tutorials\hvvh\CAD\CompareVersions.

9.	For the Output directory field, use the open file icon, , to select an output directory.

10.	Click Import/Export.

11.	A report is generated based on the comparison of exported CAD geometry in the current and reference versions and CAD-CAD comparison. Model file import and export times, as well as import and export status are displayed for both the current and reference versions.

In the Messages window, the run details are displayed along with the log file location.

If a difference is greater than the tolerance, it is indicated as Fail, otherwise shown to Pass.

12.	Click HTML Report to generate a detailed report of the CAD version comparison operations, similar to this:

hvvh_tut_4000_compare_version_img2

Step 3: Compare original CAD geometry and an FE mesh after meshing in HyperMesh (CAD > Mesh tab).

1.	Select the CAD > Mesh tab.

hvvh_tut_4000_cadmesh_img1

2.	From the Import file type: drop-down menu, select the Import file type IGES.

3.	From the Export file type: drop-down menu, select STEP.

4.	For Current Version, select 2017.

5.	Leave Tolerance as the default (.01).

6.	Leave the following options blank: Same as Criteria, Same as Parameter, BM Cfg, and Update Cfg.

7.	To select the Model File under the Input File heading, click the add file icon, , to display the file browser and load the raw_iges_data.iges file from the following location: ..\tutorials\hvvh\CAD\CAD-Mesh.

8.	To select the Criteria File under the Input File heading, click the add file icon, , to display the file browser and load the 8mm.criteria file from the following location: ..\tutorials\hvvh\CAD\CAD-Mesh.

9.	To select the Parameter File under the Input File heading, click the add file icon, , to display the file browser and load the 8mm.auto.param file from the following location: ..\tutorials\hvvh\CAD\CAD-Mesh.

10.	For the Output directory field, use the open file icon, , to select an output directory.

11.	Click Compare.

12.	In the background, a CAD model is imported in HyperMesh and it is meshed based on the selected criteria and parameter files.

13.	A report is generated based on the comparison of CAD geometry and the meshed FE model CAD-Mesh comparison. The mesh status is displayed and any issues are displayed as Fail.

In the Messages window, the run details are displayed along with the log file location.

14.	Click HTML Report to generate a detailed report of the CAD > Mesh comparisons, similar to this:

hvvh_tut_4000_cadmesh_img2

hvvh_tut_4000_cadmesh_img3

hvvh_tut_4000_cadmesh_img4

hvvh_tut_4000_cadmesh_img5

Step 4: Compare meshed FE geometry across different versions of HyperMesh (FE > FE tab).

1.	Select the FE > FE tab.

hvvh_tut_4000_fefe_img1

2.	From the Import file type: drop-down menu, select the Import file type IGES.

3.	From the Export file type: drop-down menu, select STEP.

4.	For Current Version, select 2017.

5.	For Reference Version, select 14.0.0.130.

6.	Leave Tolerance as the default (.01).

7.	Leave the following options blank: Same as Criteria, Same as Parameter, BM Cfg, and Update Cfg.

8.	To select the Model File under the Input File heading, click the add file icon, , to display the file browser and load the raw_iges_data.iges file from the following location: ..\tutorials\hvvh\CAD\FE-FE.

9.	To select the Criteria File under the Input File heading, click the add file icon, , to display the file browser and load the 8mm.criteria file from the following location: ..\tutorials\hvvh\CAD\FE-FE.

10.	To select the Parameter File under the Input File heading, click the add file icon, , to display the file browser and load the 8mm.auto.param file from the following location: ..\tutorials\hvvh\CAD\FE-FE.

11.	For the Output directory field, use the open file icon, , to select an output directory.

12.	Click Compare.

13.	In the background, a CAD model is imported in HyperMesh and it is meshed based on the selected criteria and parameter files.

14.	A report is generated based on the comparison of the meshed FE models (FE-FE). The mesh status is displayed and any issues are displayed as Fail.

In the Messages window, the run details are displayed along with the log file location.

15.	Click HTML Report to generate a detailed report of the FE-FE comparison, similar to this:

hvvh_tut_4000_fefe_img2

hvvh_tut_4000_fefe_img3

hvvh_tut_4000_fefe_img4

hvvh_tut_4000_fefe_img5