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Post-processing > Combining, manipulating, and extracting results > Combining and manipulating results > Reduction and Multiple Reductions

Graph multiple reduced results

To define the Y axis for the graph, field, or AFU file, be sure at least one viewport displays the mesh and polygon geometry of your CAE model. You cannot select nodes or elements in post view to define the data series for a multiple reduction graph.

  1. Choose Results tab→Results Manipulation group→Multiple Reduction .The Expression Manager table is automatically populated with post expressions for each result component defined in the results set. Each component is assigned a default expression name.

  2. Specify a range of results:From the Result list, select a results set.Select the Start Iteration or Start Load Case.Select the End Iteration or End Load Case.

  3. As needed, you can edit the defined post expressions:Click a cell in the Expression Manager table to rename an expression.Right-click an expression and choose Edit to display the Create Expression dialog box and modify the reduction. For example, you can select a new reference coordinate system, change the units, or select complex options.For more information, see Create post-processing expressions and Edit and manage post-processing expressions.

  4. In the Formula group, enter a formula using standard expression syntax to apply to the post-processing expressions.Right-click a post expression in the Expression Manager list and choose Insert to add it to the Formula box. You can combine post expressions using any functions, math operators, or named expressions. Type the first few letters of the function name in the Formula field to view a list of supported functions that match the string.

  5. Define the X axis. By default, the X axis is set to evenly spaced iteration IDs. Depending on the analysis or solution type, you may also be able to display the X axis in terms of load factors, frequencies, time, and so on.

  6. Define the Y axis:To select nodes, from the Selection Type list, choose Nodes. You can select nodes in the mesh, or enter a node ID in the Entity ID box and click [icon]. To select elements, from the Selection Type list, choose Elements. You can select nodes in the mesh, or enter an element ID in the Entity ID box and click [icon]. For element nodal results, from the Nodal Averaging list, select a method for extracting nodal values from the selected element.To select polygon geometry, from the Selection Type list, choose Edges, Faces, or Bodies. From the Geometry Value list, choose a method for extracted values from related nodes.If you specify a geometry value of Weighted Average or Integral, select a value by which to calculate the weighted average from the Weighted Average By list.When you select nodes or elements graphically, use the Method list on the Top Border Bar to quickly select related entities.

  7. If you have selected multiple entities, you can graph them as multiple data series or combine the results into a single data series:To combine multiple entity selections into a single data series, select Combine Across Entities. From the Value From Entities list, choose a method.To present each entity as a separate data series or AFU record, clear the Combine Across Entities check box.

  8. (Optional) To store the graph in a more permanent format, in the Output group:To save the data in a standard field, choose Create Field.To save the data as a user AFU file, choose Save in AFU.

  9. Click Apply or OK.

  10. If the Viewport dialog bar appears:To display the graph in the Graphics region, click Select Viewport by Cursor and click a viewport.To display the graph in a separate graph window, click Create New Window .

How do I

Display reduced results in a post view

Export reduced results to a UNV file

Save reduced results to a field

Export multiple reduced results to a UNV file

Create post-processing expressions

Edit and manage post-processing expressions

Learn more

Reductionand Multiple Reduction

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Graph multiple reduced results, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid602297 · retrieved 2026-07-17