Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › Triple pendulum › Reply To: Triple pendulum
Here are some sample keywords that may help.
Â
$ ====================
$ MAT (Material) cards
$ ====================
$
*MAT_SEISMIC_ISOLATOR Â Â Â Â Â Â Â Â Â Â
$ sliding isolator
     1   2000.0    0.0    0.0    0.0   0.005    1.e8     0
   1.0e5
    0.2    0.10    0.5             0.150       Â
                     Â
$
*MAT_SEISMIC_ISOLATOR Â Â Â Â Â Â Â Â Â Â
$ elastomeric isolator
     2   2000.0    0.0    0.0    0.0   0.005    1.e8     1
   1.0e5
    0.0    0.0    0.0    0.0    0.0    0.0  Â
   30.e3    0.05        0.150 Â
*MAT_SEISMIC_ISOLATOR Â Â Â Â Â Â Â Â Â Â
$ sliding isolator with radii
    10   2000.0    0.0    0.0    0.0   0.005    1.e8     2
  -1.0e5
    0.2    0.10    0.5    0.5    0.5   0.50         1.e5
                        0.1   0.40    0.30
$
$
$
$ =============
$ SECTION cards
$ =============
$
*SECTION_BEAM
     1     6    0.0    0.0    0.0    0.0
$    vol    iner    cid     ca   offset   rrcon   srcon   trcon
   0.125    10.0     0    0.0    0.0    0.0    0.0    0.0
$
     2     6    0.0    0.0    0.0    0.0
$    vol    iner    cid     ca   offset   rrcon   srcon   trcon
   0.125    10.0     0    0.0    0.0    0.0    0.0    0.0
$
$
$
$ ==========
$ PART cards
$ ==========
$
*PART
sliding isolator
     1     1     10     0     0     0     0     0
$
*PART
sliding isolator
     2     2     2     0     0     0     0     0
*PART
sliding isolator with radii
    10     1     10     0     0     0     0     0
$
$
$
$ ==========
$ NODE cards
$ ==========
$
*NODE
    1       0.0       0.0       0.0    0    0
    2       0.0       0.0       0.0    0    0
    3    0.24974091       0.0       0.0    0    0
    4    0.24974091       0.0       0.0    0    0
   13       0.5       0.0       0.0    0    0
   14       0.5       0.0       0.0    0    0
$
$
$ =============
$ ELEMENT cards
$ =============
$
*ELEMENT_BEAM
    1    1    1    2    0
    2    2    3    4    0
   10    10    13    14    0
$
$
$ ==============
$ BOUNDARY cards
$ ==============
$
*BOUNDARY_PRESCRIBED_MOTION_NODE
     2     1     0     1    2.0     0    0.0    0.0
$ Â Â Â Â 2 Â Â Â Â 2 Â Â Â Â 0 Â Â Â Â 2 Â Â Â 2.0 Â Â Â Â 0 Â Â Â 0.0 Â Â Â 0.0
     4     1     0     1    2.0     0    0.0    0.0
$ Â Â Â Â 4 Â Â Â Â 2 Â Â Â Â 0 Â Â Â Â 2 Â Â Â 2.0 Â Â Â Â 0 Â Â Â 0.0 Â Â Â 0.0
$ Â Â Â 14 Â Â Â Â 1 Â Â Â Â 0 Â Â Â Â 1 Â Â Â 2.0 Â Â Â Â 0 Â Â Â 0.0 Â Â Â 0.0
    14     2     0     1    2.0     0    0.0    0.0
*BOUNDARY_SPC_NODE
     1     0     1     1     1     0     0     0
     3     0     1     1     1     0     0     0
    13     0     1     1     1     0     0     0
Â