Compare Time History

The Compare Time History diagnostic tool consists of two pages. On the first page, the input data files, such as plot, result, and FE files, are selected. Page two contains the data needed to compare the reference files and comparison files.

Input Data Files



Figure 1.
Load Model and Results
The diagnostic tool supports two solvers, Radioss and LS-DYNA. From the File Type drop-down list, select the type of solver files to be compared.
Reference Files
From this section, select the plot file (Time History File), FE (model) File and Result File. The plot file is mandatory.
Comparison Files
From this section, select the plot file (Time History File) and Result File. The plot file is mandatory.
Click the add button to add more than one set of comparison files (time history and result files).
To delete a single set of comparison files, activate the check box for the set of files you want to remove and click the single delete button.


Figure 2.
To delete all comparison file entries from the GUI, activate the check boxes for all comparison file sets and click the delete all button.
After selecting the input files, click Load. A page is added to the session and three windows are created on the same page.
The first window is a HyperView window.
HyperMesh is loaded into the second window. If a model file is specified, the FE model is loaded.
HyperView is loaded into the third window. If result files (Reference Comparison files) are specified, those are loaded into the HyperView window.
Click Load Defaults to select the model compare default (*.def) files.
In this case, you do not need to select the files individually through the application.
A sample def file is shown below:


Figure 3.
Next
Click Next to go to the page tool of the Compare Time History tool.
Close
Click Close to close the tool.

Compare Data



Figure 4.
Result Type
From the Result Type drop-down list, select the Y-Types available for the reference file specified on page one.
Result Request
From the list provided, select single or multiple Y-Requests for comparison.
Click to select all of the elements listed.
Click to clear all of your current selections.
Click to select the reverse of the currently selected items.
Click to dislay the item in the graphics area. This selection affects each item’s local display control. You can also use this on the entire folder. In such cases, this shows all of the items within that folder (all components for example, etc.).
Click to turn off the item in the graphics area. This selection affects each item’s local display control. You can also use this on the entire folder. In such cases, this hides all of the items within that folder (all components for example, etc.).
Click to works locally within a specific entity type. For example, if Component(s) are isolated, then all display states of other displayable entities (such as Systems) remain untouched. Isolate displays only the selected entities, turning their display state to on, and turning all other entities of the same type off.
Click to display selected plots in the HyperGraph window. If you do not want to see the plots on the graphics, deselect the button. This button is on by default.
Click to display selected entities from the list box in a HyperView window. If you do not want to see the entities on the graphics, deselect the button. This button is on by default.
Click to display selected entities from list box in a HyperMesh window. If you do not want to see the entities on the graphics, deselect the button. This button is on by default.
Right-click on an element listed to display the context sensitive menu:


Figure 5.
  • Compare > At max Value
  • Compare > Every Time Step
  • Click the expansion button, , to undock the request list box from the GUI.
Result Component
From the drop-down list, select a Y-Component. The list is automatically updated upon selecting items from the Y-Requests list box, with respect to the Y-Type selected.
Threshold Limit
To compare the reference file data with comparison file data, input a threshold value.
Comparison Results
A tree structure is displayed, if any number of y-requests violate the threshold limit values while comparing.


Figure 6.
Click to select all of the root-children present in the compared results.
Click to deselect all of the root-children present in the compared results.
Click to reverse the selected root-children present in the compared results.
Parts missing in comparison file
The files displayed are the Y-Requests missing from the comparison file when compared to the Y-Requests in reference file.
Back
Click Back to go back to page one.
Save Defaults
Click Save Defaults to save the data from pages one and two.
Note: To save the Y-requests in the default file, select the items from request list box.
The first time you click Save Defaults for the same session, the tool prompts you for a file location to save the *.def file.
Clicking on the button a second time displays the following dialogue:
Click Yes to append the DEF file.
If you click No, it will prompt you to save a new DEF file.
Load Defaults
Click Load Defaults to load a *.def file from the file browser window.
Close
Click Close to close the tool.