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Tutorial A2: Run the Analysis and Post-Process the Results

  1. Save the model.
  2. Right-click on Analysis 1 and select Solve in Nastran.
  3. When you see the dialog "Nastran Solution Complete", click OK to load the results into Autodesk Inventor Nastran.

Post-Process the Results

  1. Right-click on Results and choose Edit.
  2. Select STEP 40, Time=0.195 in the Subcases list and make sure the Deform Options and Contour Options checkboxes are selected.
  3. On the Contour Options tab, for Result Data, select Displacement and for Type, select TOTAL. Make sure Min/Max Markers is checked under Display Options. Click on Display under Plot, and then click OK to display the results.

    It may be necessary to edit the Default Settings, Display Options to show Max/Min Data on Contour.

  4. The results should look like the image below.
  5. Near the top of the Part tree, right-click Nodes > Query Display. This will allow you to look at the information on individual nodes by moving your mouse over them.
  6. Move your mouse so that the node with the load is highlighted. You may need to zoom in closer to the wing. Write down the Node ID; it will be used later to make an XY Plot of that particular node’s displacement.

    The Node ID might be different from the one shown in this tutorial.

  7. Right-click Nodes > Query Display again to disable the Query Display.
  8. Right-click on Results and choose Edit.
  9. On the Contour Options tab, for Result Data, select Stress, then under Type select SHELL MAX VON MISES STRESS BOTTOM/TOP. Click on Display, and then click OK to display the results.
  10. The results should look like the image below.
  11. Right-click on Results and select Multiset Animation Settings.
  12. Change the End Set to STEP 62, TIME=0.305. Check the Deform Options checkbox only, uncheck the other options.
  13. Click the Animation Options tab, and change the Mode setting to Half.
  14. Click the Animate button. This will load the animation, showing the deformation of the wing. Click OK to close the dialog for a better view of the animation.
  15. To stop the animation, right-click Results > Multiset Animate.
  16. Right-click on XY Plot and select New.
  17. For the Entity To Plot, make sure Node is selected, and under ID type in the Node ID you previously found.
  18. For the Output Sets, make sure STEP 1, TIME=0.0 is selected for the Start Set, and STEP 62, TIME=0.305 is selected for the End Set.
  19. For the Y-Axis Output Sets, make sure that Result Data is set to DISPLACEMENT, and Component is set to TOTAL.
  20. Click the Show XY Plot button. The plot appears in the XY Plot dialog.
  21. Click OK in the XY Plot dialog to close the plot display.
  22. Now click into the ID input box field and click a node out in the center span of the wing. A new ID should appear, followed by a small marker on the model indicating the node selected.
  23. Change the Component from TOTAL to TY.
  24. Click Show XY Plot to see the displacement plot for the selected node.

    Other nodal quantities can be viewed such as acceleration, velocity, and forces.

This concludes Direct Transient Response of a Wing.

The following summarizes the main topics covered:

  • Creating tables to be used for transient loading.
  • Direct transient analysis setup, including structural damping and time steps.
  • Using the nodal query display feature.
  • Creating an XY Plot for total displacement.
Parent topic: Tutorial A2: Direct Transient Response of a Wing

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