An aluminium bracket

This is an example of an aluminium bracket subjected to base excitation. Random fatigue analysis is running with *FREQUENCY_DOMAIN_RANDOM_VIBRATION_FATIGUE using Steinberg's three band method. *DATABASE_FREQUENCY_BINARY_D3FTG, *DATABASE_FREQUENCY_BINARY_D3PSD and *DATABASE_FREQUENCY_BINARY_D3RMS are used for post-processing of the results. Example 7.1 from LS-Dyna training class NVH, Fatigue and Frequency Domain Analysis with LS-DYNA by Yun Huang.

*BOUNDARY_SPC_SET
*CONTROL_IMPLICIT_EIGENVALUE
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_NONLINEAR
*CONTROL_STRUCTURED
*CONTROL_TERMINATION
*DATABASE_BINARY_D3PLOT
*DATABASE_DEFORC
*DATABASE_FREQUENCY_BINARY_D3FTG
*DATABASE_FREQUENCY_BINARY_D3PSD
*DATABASE_FREQUENCY_BINARY_D3RMS
*DATABASE_GLSTAT
*DATABASE_JNTFORC
*DATABASE_MATSUM
*DATABASE_NODOUT
*DATABASE_RWFORC
*DATABASE_SECFORC
*DATABASE_SSSTAT
*DEFINE_CURVE
*ELEMENT_SHELL
*END
*FREQUENCY_DOMAIN_RANDOM_VIBRATION_FATIGUE
*KEYWORD  
*MAT_ELASTIC
*NODE
*PART
*SECTION_SHELL
*SET_NODE_LIST_TITLE
*TITLE

*KEYWORD  
*TITLE
Random fatigue analysis: 2014-T6 Al
*FREQUENCY_DOMAIN_RANDOM_VIBRATION_FATIGUE
         1        15        0.    90000.
      0.03
         1         1         0                   1         1
                              
                             3      2001
         1         1             8.64e+8
      4075        -1                        1.e+06         3                   1
*DATABASE_FREQUENCY_BINARY_D3PSD
         1
     0.100     2.000         5
*DATABASE_FREQUENCY_BINARY_D3RMS
         1
*DATABASE_FREQUENCY_BINARY_D3FTG
         1
*BOUNDARY_SPC_SET
         1         0         1         1         1         1         1         1
*SET_NODE_LIST_TITLE
*CONTROL_IMPLICIT_EIGENVALUE
        15     0.000         0     0.000         0     0.000         0     0.000
         0         0         0         0         1
*CONTROL_IMPLICIT_GENERAL
         1  1.000000         0         0         0         0         0         0
*CONTROL_IMPLICIT_NONLINEAR
         1         0         0     0.000     0.000     0.000     0.000     0.000
         0         0         0         0
         0         0     0.000         1         2
*CONTROL_STRUCTURED
*CONTROL_TERMINATION
  1.000000         0     0.000     0.000     0.000
*DATABASE_DEFORC
  0.100000         0         0         1
*DATABASE_GLSTAT
  0.100000         0         0         1
*DATABASE_JNTFORC
  0.100000         0         0         1
*DATABASE_MATSUM
  1.000000         0         0         1
*DATABASE_NODOUT
  0.100000         0         0         1     0.000         0
*DATABASE_RWFORC
  1.000000         0         0         1
*DATABASE_SECFORC
  0.100000         0         0         1
*DATABASE_SSSTAT
  0.100000         0         0         1
*DATABASE_BINARY_D3PLOT
  5.000000         0         0         0         0
         0
*ELEMENT_SHELL
*NODE
*PART
Recliner Bkt i/b
      4075    102760      4204         0         0         0         0         0
*SECTION_SHELL
    102760        18  1.000000         3         0         0         0         0
  2.500000  2.500000  2.500000  2.500000     0.000     0.000     0.000         0
*MAT_ELASTIC
      4204 2.8000E-6 72.400000  0.330000 
*DEFINE_CURVE
      2001         0  1.000000       3.0     0.000     0.000         0
          0.10000000           0.09604
          2.00000000           0.09604
*END