Mechanical APDL Structural Analysis Guide

10. Choose menu path Utility Menu> PlotCtrls> Numbering. The Plot Numbering Controls dialog box ap-
    pears.


11. Click on "keypoint numbers" to turn keypoint numbering on.


12. Click on OK.


13. Choose menu path Main Menu> Preprocessor> Modeling> Create> Lines> Lines> Straight Line. A
    picking menu appears.


14. Click on keypoint 1, and then on keypoint 2. A straight line appears between the two keypoints.


15. Click on OK.The picking menu closes.

6.3.4.6. Set Global Element Density and Mesh Line.

1. Choose menu path Main Menu > Preprocessor > Meshing > Size Cntrls > ManualSize > Global >
   Size. The Global Element Sizes dialog box appears.


2. Enter 8 for the number of element divisions and click on OK.The Global Element Sizes dialog box closes.


3. Choose menu path Main Menu> Preprocessor> Meshing> Mesh Attributes> All Lines. The Line Attrib-
   utes dialog box appears.


4. Click on Pick orientation keypoint(s) and click on OK. A picking menu appears.


5. In the graphic window, click once on the keypoint 3 and click on OK.


6. Choose menu path Main Menu> Preprocessor> Meshing> Mesh> Lines. A picking menu appears.


7. Click on Pick All. The picking menu closes.

6.3.4.7. Set Boundary Conditions

1. Choose menu path Main Menu> Solution> Define Loads> Apply> Structural> Displacement> On
   Nodes. A picking menu appears.


2. In the graphics window, click once on the node at the left end of the beam.


3. Click on OK.The Apply U,ROT on Nodes dialog box appears.


4. In the scroll box of DOFs to be constrained, click once on "UY" to highlight it.


5. Click on OK.


6. Repeat steps 1-3 and select the node at the right end of the beam.


7. In the scroll box of DOFs to be constrained, click once on "UX." Both "UX" and "UY" should be highlighted.


8. Click on OK.The Apply U,ROT on Nodes dialog box closes.


9. Choose menu path Main Menu> Solution> Define Loads> Apply> Structural> Displacement> Sym-
   metry B.C.> On Nodes. The Apply SYMM on Nodes box dialog appears.


10. 
    
    
    
    10. In the scroll box for Norml symm surface is normal to, scroll to “z-axis” and click on OK.
    
    
    
    

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Example Spectrum Analysis (GUI Method)