Eigenfrequency analysis of a panel with a bead

A panel is fully constrained at one edge, see Figure 22. The example keyword file is eigen001.key. The lowest eigenfrequency is 44.3 Hz, and the mode shape is a side-to-side swinging motion.

Example Files: eigen001
NOTE! All examples are included in the Complete Guideline

Main Input

*KEYWORD
$===============================================================================
$ Control and output cards
$===============================================================================
*INCLUDE
../INCLUDE_FILES/control_cards_linear.key
*DATABASE_HISTORY_NODE
       244
*INCLUDE
../INCLUDE_FILES/database_cards_static.key
*CONTROL_TERMINATION
        1.
*CONTROL_IMPLICIT_EIGENVALUE
         5
$===============================================================================
*DEFINE_CURVE_TITLE
Time stepping curve
       700
                  0.                0.10
                  1.                 0.2
                 1.1                0.05
                 1.2                 0.1
                  2.                 0.2
                  3.                 0.3
                  4.                 0.5
$===============================================================================
$ Bracket geo
$===============================================================================
*INCLUDE
buckling_geo001.key
$===============================================================================
$ Loads and boundary conditions
$===============================================================================
*BOUNDARY_SPC_SET
         1                   1         1         1         1         1         1 
$===============================================================================
*TITLE
Simple eigenfrequency analysis
*END