Perform Model Checks
Perform various model checks in the Comparison Browser.
Offset
Offset is mainly used to offset surface to mid plane location and to convert the CAD files to .hm format.
Comparison
Comparison is used to compare two models using the Model Verification tool.
Output
Overview of the output generated from a Comparison check.
Excel
- Base Model Input
- Input information about each of the parts of the CAD model that the tool uses for performing the a comparison check. The Base Model Input is the first assembly shown in the Part Browser, and can be cross checked at row 5.
- Variant Model Input
- Results of the comparison check. The match percentage column shows a part vise match percentage. If the value of match percentage for a part is 0 or less than the threshold percentage, then the part is said to be unmatched with the corresponding part of the other assembly. If the match percentage is above the threshold value, then the parts are considered matching. The error is reported in the error column. Variant model’s Material name or Thickness values are compared against Base model, mismatch values are shown in red text. Variant Model Input increases depending on the number of Variant model found in the Variant Input folder. Variant model name can be cross checked at row 5.
- Image Type
- Shortcut to the image the part.
- If the image type is JPG, then this shortcut opens the full sized image for viewing.
- If the image type is H3D, then the shortcut opens in the part in H3D format in a new HyperMesh window.
Comparison with Browser Selection
Compare CAD vs. CAD models, FE vs. FE models, and CAD vs. FE models with a Comparison check.
- Comments
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- During a Comparison check, the part files may get reloaded several times. Converting all models to the HyperMesh format can improve performance. It is recommended that you perform a No-Offset operation before starting the comparison process by selecting .
- During a Comparison check, the part files may get reloaded several times. It is recommended that all models be in HyperMesh format to improve performance. Use the Offset operation before performing a comparison.
- When generating reports, Excel or PowerPoint reports may open several times. It is recommended that you do not to launch or close any Microsoft Office application or use the keyboard during this operation.
- Translation or Smetry comparison runs using 1 CPU. A single CPU is automatically utilized, even when you manually set multiple CPUs.
- If more than one input model is found in the variant folder, a multiple model comparison is activated.
- The folder structure is to be maintained when organizing variant model files. CAD files must be managed under variant folders, and you must select the variant root folder. If the variant root contains more than one sub folder (variants), a multiple model (variant) comparison is activated.
Troubleshoot Model Verification Comparison Check Problems
Approaches used to troubleshoot Model Verification comparison check problems.
- The type of CAD files and the corresponding license required to import the CAD files into Model Verification.
- The tolerance value specified in the GUI (Thickness/2.0).
- Filters specified, such as those in the following list:
- Connection Name Filter
- Area Filter
- CG Filter
- Match % Filter
- Availability of license when using the multiple CPU option. The unit
requirement can be calculated using this formula:
40 + ((No. of CPUs * 21) - 21)
Find which filter parts that are excluded from during comparison.
Intersect
Intersect checks provide information in Power Point reports on all the inter-part intersection/overlapping in the CAD parts.
Once the model is done with the Intersection check, the tool locates the point of intersection as a cross-hair and summarizes all the intersections found in the PowerPoint report.
Output
Overview of the PowerPoint report generated from the Intersection check.
- Report Header
- Project name, assembly name, and slide number.
- Assembly Picture
- Image of the components that have intersection issues.
- H3D Image
- Section can be viewed in the HyperView Player, and shows the CAD model with the intersection marked with Cross Hairs.
- Issue Details
- Details of components which have intersection issues.
- User Review
- Add additional information when exchanging information with designers/engineers.
- Additional Info
- Occurrences of the issue shown in the current slide. The number of instances show the number of occurrences of the issue.
Spotweld
Spot Weld checks identify problems with spot welds in the model and shows them in the report.
The identified problems in spot welds are highlighted using a cross-hair in the images.
Output
Overview of the PowerPoint report generated from the Spot Weld check.
- Report Header
- Project name, assembly name, and slide number.
- Assembly Picture
- Image of the components that have spot weld issues.
- H3D Image
- Section can be viewed in the HyperView Player, and shows an H3D image shows the FE model with the spot weld marked with Cross Hairs.
- Issue Details
- Details of components which have spot weld issues.
- User Review Section
- Used to add additional information when exchanging information with designers/engineers.
- Additional Info
- Occurrences of the issue shown in the current slide. The number of instances show the number of occurrences of the issue.
Supported Spotweld Checks
Overview of the spotweld checks available to perform in the model.
- Closest
- Detects the spot welds which are too close to each other. The closeness tolerance is used as the criteria for deciding if two spot welds are considered as too close.
- Gap
- Detects the spot welds in which the distance between the spot weld location and the connected components lie outside the given maximum and minimum gap limits.
- Single Layer
- Detects the spot welds which are connected to only one part. The second part is missing from the spot weld definition.
- Multiple Layers
- Detects the spot welds which are connected to more parts than what is specified as the threshold number for multiple parts.
- HyperMesh Issues
- Detects the spot welds that failed during realization.
- Non-Parallel Flanges
- Detects the spot welds that are connecting the non-parallel flanges. Flanges are said to be non-parallel if there is a gap or step of the flanges diverge.
- Incorrect Location
- The Model Verifications creates feature lines internally to check the distance between the connector and the feature line. When the distance between the connector and feature line is less that the specified tolerance, the location of the connector is said to be incorrect. The feature angle used to create feature lines is specified in the Feature Angle field.
- Few Connections
- Detects the possible locations where the spot welds may be missing. This detection is done based on the adjacent spot welds in that area.
- Flange Gap
- Detects if the gap between the flanges is within the minimum and maximum limit of the average of the component thicknesses being connected by the weld.
- Spotweld Intersection
- Detects if a spot weld has an intersection with an unconnected component.
- Spotweld on Fillet
- Detects if any spot weld is located on fillet features.
- Reflect Spotweld
- Detects if any spot weld can be realized on reflecting its location about a plane defined by the user.
Connection
Connection check detects problems with parts/components such as bolts, nuts, clips, plates and reports the problems in a PowerPoint file.
There are multiple checks that can be performed, depending on the selection, the tool perform the checks and results of the checks are written out to the report files.
Output
Overview of the PowerPoint report generated from the Connection check.
- Report Header
- Project name, assembly name and slide number.
- Full Assembly Picture
- Image of the components that have connection issues.
- H3D Image
- Section can be viewed in the HyperView Player, and shows an H3D image shows the FE model with the connections marked with Cross Hairs.
- Issue Details
- Details of components which have connection issues.
- User Review Section
- Used to add additional information when exchanging information with designers/engineers.
- Additional Info
- Occurrences of the issue shown in the current slide. The number of instances show the number of occurrences of the issue.
Supported Connection Checks
Types of checks to perform on connections in the model.
- Free Hole
- Detects the holes in the model which do not have connectors around them.
- Free Bolt-Nut
- Detects the bolts and nuts which do not have corresponding holes to fit in.
- Bolt Hole Mismatch
- Detects the bolts which have a hole around it, but the distance between the bolt center and hole center is more than the threshold value.
- Nut Hole Mismatch
- Detects the nuts which have a hole around it, but the distance between the nut center and the hole center is over the threshold.
- Bolt-Nut Mismatch
- Detects the bolt nut pairs whole location or alignment direction do not match properly.
- Bolt-Nut Size Mismatch
- Detects the bolt nut pairs whose sizes are different from each other.
Note: The diameters of bolt, nut and clip are found through a CSV file.
- Holes Mismatch
- Detects pairs of holes whose center axes do not match.
- Holes Pair Missing
- Detects the holes that do not have a corresponding pairing hole within the specified tolerance.
- Clip Mismatch
- Detects the clips which have a hole around it but the distance between the clip center and the hole center is over the threshold.
FreePart
FreePart check detects the components in a model that are not connected to any other component through ID connectors or shared nodes.
Output
Overview of the PowerPoint report generated from the FreePart check.
- Report Header
- Project name, assembly name, and slide number.
- Assembly Picture
- Image of the components that have free part issues.
- H3D Image
- Section can be viewed in the HyperView Player, and shows an H3D image shows the FE model with the free parts marked with Cross Hairs.
- Free Part Details
- Details of components which have free part issues.
- User Review Section
- Used to add additional information when exchanging information with designers/engineers.
Spot Comparison
Spot Comparison check compares two spot connector files using the Model Verification tool.
CSV-Comparison
CSV comparison tool compares CAD/FE attributes against CSV file column.
Supported attributes are Part name, PID, Part Number, Material Name, Thickness, File name. It has 3 options, “compare”, “compare-update” and create “new XML”.
Multiple Checks
Multiple Checks perform multiple checks using single interface.
If Offset check is ON, CAD data will be offset using thickness value. Offset CAD data will be used to check all other checks. Check and Reports are sequentially executed for each check. Offset, Intersection, Spotweld, Connection, Free Part check uses Base Model selection alone and ignore Variant model selections. Comparison function uses both Base Model and Variant Model selections. Check items, input rules are as per individual checks explained in respective check functions.