Animating a Normal-Modes Analysis
In this section, you animate the model to inspect and relate mode numbers with mode shapes.
To view a normal-modes animation:
1. Click the Plugins tab on the Adams View ribbon.
2. From the Vibration container, click Vibration tool 
→ Review → Postprocessing or press F8.
→ Review → Postprocessing or press F8. 3. Select the New Page tool.
4. From the pull-down menu located below the File menu, select Animation.
Adams PostProcessor switches to animation mode.
5. Right-click the animation window, and then select Load Vibration Animation.
6. Select lateral_x from the list.
The lateral animation appears in the animation window. Note that the label on the animation is EIGEN_#, where # is the run number of the animation.
7. Select Normal Mode Animation.
8. In the Mode Number text box, use the 
tool to select different modes.
tool to select different modes. 9. Select the Play tool.
10. Look at the mode shape for mode numbers 8, 11, and 14.
Mode 8 is a symmetric rocking mode. Modes 11 and 14 are asymmetric rocking modes. These three modes will affect the lateral acceleration.
11. Select the Pause tool.