Superposition Event dialog box — Load Histories tab

Tip:

In the tab name, the number in parentheses identifies the number of load histories, defined in the selected data sources, with an active status.

Data Sources
Data sources list	Lists the data sources that you add to create the load event. Each data source file contains one or more load histories.When you select a data source file from the list, the software displays its detailed information in the Data Source Details group and lists its load histories in the Load History group. The load histories are listed in the Connection tab in the same order as they are listed in the selected data source file. The load histories of each data source that you select are added to the list of load histories that are already added from previous data sources.
Add Data Sources	Lets you add one or more data sources to the data sources list.
Remove Data Sources from the list	Removes the selected data sources from the data sources list.
Information on Data Sources	Opens an information window to display detailed information on the selected data sources.
Data Source Details
Displays detailed information of the data source that you select from the Data Source group.
Data source directory	Displays the name and directory of the selected data source. To replace the data source file, click Replace Data Source .When you replace a data source, instead of adding a new one in the Data Source group, the software re-matches the load histories and subcases according to the re-matching rule, which you select from the After Input Change Re-match Load Histories and Subcases by list in the Connections tab.
Data Source Label	Sets a label for the data source.The data source label appears in the data source table in the Data Source group.
Type	Displays the data source file type. For example, it displays Nastran Files for .op2 and .pch file types.The data source type appears in the data source table in the Data Source group.
Load Histories
Plot(XY)	Available when you select one or more load histories from the load histories list.Plots one or multiple load histories on a new graph.It opens the Viewport dialog box that lets you choose to plot the load histories in the main graphics window or in a new window.
Plot(XY) In Stack	Available when you select multiple load histories from the load histories list.Plots multiple load histories on multiple subgraphs of a new graph.It opens the Viewport dialog box that lets you choose to plot the load histories in the main graphics window or in a new window.
Overlay	Available when you have one or more open graphs.Overlays one or multiple load histories on the content of an open graph.It opens the Viewport dialog box that lets you select a viewport using the cursor.
Filter	Lets you filter the load histories based on their name and dimension.To filter the list of load histories based on a name, enter the name in the Load History box and select its check box.To filter the list of load histories based on a dimension, select the dimension from the Dimension list and select its check box.
Load histories list	Lists the load histories for the selected data source. For each load history, the list displays the corresponding attributes, such as the active status, name, number of data points, dimension, and unit.Each load history is also referred to as a channel.To change the active status of load histories, select one or more from the list, right-click, and choose Activate or Deactivate. Only the active load histories are listed under the Connection tab.You can also access the Plot(XY), Plot(XY) In Stack, and Overlay commands that are described above by right-clicking one or multiple selected load histories.
Interval
Complete Load Histories	Takes the complete load histories as the time interval.
Range	Lets you define the start and end of the time interval in the Start and End boxes.
Start	Available when you select the Range option.Sets the start time of the time interval.
End	Available when you select the Range option.Sets the end time of the time interval.
Load Length
Duration	Lets you specify the duration of the load history that the software uses to generate lifetime information for the post-processing.Use Existing Duration InformationReuses the duration information available in the data source for each individual load event.Enter DurationLets you enter the duration of the load history in the Duration box.No Duration Information AvailableIndicates that no duration information is available.
Distance	Lets you specify the load history corresponding riding distance that the software uses to generate mileage information for the post-processing.For example, if a load history corresponds to 5000 km on a road and the durability simulation estimates that the load can be endured 300 times, this corresponds to a mileage of 150000 km.Use Existing Distance InformationReuses the distance information available in the data source for each load history.Enter DistanceLets you enter the distance of the load history in the Distance box.No Distance Information AvailableIndicates that no distance information is available.
Channel Length Handling
Change Treatment for Different Channel Length	Specifies the method to use when you select multiple load histories for a fatigue analysis and the load histories have different lengths.TruncateTruncates the longer load histories to the length of the shortest load history.FillFills the shorter load histories with zeroes, until it matches the length of the longest load history.RepeatRepeats each load history until it matches the length of the longest load history.

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Superposition Event dialog box — Load Histories tab, Simcenter 3D 2021.1 Series

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