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Yaris Static Shock Absorber Loading

This example shows the static loading of the TOYOTA Yaris shock absorbers. The car model is based on the CCSA (former NCAC) TOYOTA Yaris. The author's aim is to do as less modifications as needed to make the model 'implicit ready'. This model was computed successfully with the LS-DYNA R9.0.1 MPP solver. Last but not least we want to aknowlege the CCSA for the baseline model.

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Keywords

*AIRBAG_SIMPLE_AIRBAG_MODEL_ID
*BOUNDARY_PRESCRIBED_MOTION_SET
*CONSTRAINED_EXTRA_NODES_SET
*CONSTRAINED_JOINT_CYLINDRICAL_ID
*CONSTRAINED_JOINT_REVOLUTE_ID
*CONSTRAINED_JOINT_SPHERICAL_ID
*CONSTRAINED_JOINT_STIFFNESS_GENERALIZED
*CONSTRAINED_JOINT_TRANSLATIONAL_ID
*CONSTRAINED_NODAL_RIGID_BODY
*CONSTRAINED_RIGID_BODIES
*CONSTRAINED_SPOTWELD
*CONTACT_AUTOMATIC_SINGLE_SURFACE_MORTAR_ID
*CONTACT_AUTOMATIC_SURFACE_TO_SURFACE_MORTAR_ID
*CONTACT_TIED_SHELL_EDGE_TO_SURFACE_ID
*CONTROL_ACCURACY
*CONTROL_BULK_VISCOSITY
*CONTROL_CONTACT
*CONTROL_ENERGY
*CONTROL_HOURGLASS
*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_DYNAMICS
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*CONTROL_IMPLICIT_SOLVER
*CONTROL_MPP_IO_NODUMP
*CONTROL_OUTPUT
*CONTROL_SHELL
*CONTROL_SOLID
*CONTROL_SOLUTION
*CONTROL_TERMINATION
*CONTROL_TIMESTEP
*DATABASE_ABSTAT
*DATABASE_BINARY_D3DUMP
*DATABASE_BINARY_D3PLOT
*DATABASE_DEFORC
*DATABASE_ELOUT
*DATABASE_EXTENT_BINARY
*DATABASE_FORMAT
*DATABASE_GLSTAT
*DATABASE_JNTFORC
*DATABASE_MATSUM
*DATABASE_NODOUT
*DATABASE_RBDOUT
*DATABASE_RCFORC
*DATABASE_SBTOUT
*DATABASE_SLEOUT
*DEFINE_CONNECTION_PROPERTIES
*DEFINE_COORDINATE_NODES
*DEFINE_CURVE
*DEFINE_SD_ORIENTATION
*DEFINE_TRANSFORMATION
*ELEMENT_BEAM
*ELEMENT_DISCRETE
*ELEMENT_MASS
*ELEMENT_SHELL
*ELEMENT_SOLID
*END
*INCLUDE
*INCLUDE_TRANSFORM
*KEYWORD
*LOAD_BODY_Z
*MAT_DAMPER_VISCOUS
*MAT_ELASTIC
*MAT_LOW_DENSITY_FOAM
*MAT_MODIFIED_PIECEWISE_LINEAR_PLASTICITY
*MAT_PIECEWISE_LINEAR_PLASTICITY
*MAT_RIGID
*MAT_SPOTWELD
*MAT_SPOTWELD_DAIMLERCHRYSLER
*MAT_SPRING_ELASTIC
*MAT_SPRING_NONLINEAR_ELASTIC
*NODE
*PARAMETER
*PART
*PART_CONTACT
*SECTION_BEAM
*SECTION_DISCRETE
*SECTION_SHELL
*SECTION_SOLID
*SET_NODE_LIST
*SET_PART_LIST
*TITLE

Animated Result

Main Input

*KEYWORD
$ ===============
$ PARAMETER cards
$ ===============
*PARAMETER
R tend           2.0
$ ===========================
$ DEFINE_TRANSFORMATION cards
$ ===========================
*DEFINE_TRANSFORMATION
         1
TRANSL           0.0       0.0      50.0
$ =============
$ INCLUDE cards
$ =============
*INCLUDE_TRANSFORM
YarisD_V2g_shock_abs_load_01.key
         0         0         0         0         0         0         0
         0
       0.0       0.0       0.0                   0
         1
*INCLUDE
fixed_ground.k
*INCLUDE
implicit_control_cards_R9.k
$ =============
$ CONTROL cards
$ =============
*CONTROL_IMPLICIT_AUTO
         1        25         5    1.0E-2       -99       0.0         0         0
*CONTROL_IMPLICIT_DYNAMICS
         0      0.55      0.28       0.0       0.0       0.0         0
$ ============
$ DEFINE cards
$ ============
*DEFINE_CURVE
$: Cross-reference summary for Load-curve 99
$: -----------------------------------------------
$
$: Control card <No label>: Max allowable timestep vs time
$: X axis : Time                       (Units: Time)
$: Y axis : Maximum allowable timestep  (Units: Time)
$: Usage: Transient analysis
        99         0       0.0       0.0       0.0       0.0         0
                 0.0        5.0000001E-2
           1.0000000        5.0000001E-2
           2.0000000        2.0000001E-2
           3.0000000        5.0000001E-2
*DEFINE_CURVE
$: Cross-reference summary for Load-curve 100
$: -----------------------------------------------
$
$: Boundary Prescribed Motion <No label>: Displacement vs time
$: X axis : Time                       (Units: Time)
$: Y axis : Prescribed displacement    (Units: Displacement)
$:    :
$: (To a total of 5 unlabelled Boundary Prescribed Motion entries)
$
$: Usage: Transient analysis
       100         0       0.0       0.0       0.0       0.0         0
                 0.0                 0.0
           100.00000                 0.0
*DEFINE_CURVE
$: Cross-reference summary for Load-curve 101
$: -----------------------------------------------
$: Boundary Prescribed Motion <No label>: Displacement vs time
$: X axis : Time                       (Units: Time)
$: Y axis : Prescribed displacement    (Units: Displacement)
$: Usage: Transient analysis
       101         0       0.0       0.0       0.0       0.0         0
                 0.0                 0.0
           1.0000000           1.0000000
           100.00000           1.0000000
*DEFINE_CURVE
$: Cross-reference summary for Load-curve 102
$: -----------------------------------------------
$: Body load definition <No label>: Base Z acceleration vs time
$: X axis : Time                       (Units: Time)
$: Y axis : Base Z acceleration        (Units: Acceleration)
$: Usage: Transient analysis
       102         0       0.0       0.0       0.0       0.0         0
                 0.0                 0.0
           1.0000000                 0.0
       $ ==============
$ BOUNDARY cards
$ ==============
*BOUNDARY_PRESCRIBED_MOTION_SET
       100         1         2       100       0.0         0       2.0       0.0
$
$: SET_NODE 100 is in include file Camry_V1_ag06a_einfedern.k
       100         2         2       100       0.0         0       2.0       0.0
$
$: SET_NODE 100 is in include file Camry_V1_ag06a_einfedern.k
       100         3         2       101      -5.0         0       1.1       0.0
$
$: SET_NODE 100 is in include file Camry_V1_ag06a_einfedern.k
       100         5         2       100       0.0         0       0.8       0.0
$
$: SET_NODE 100 is in include file Camry_V1_ag06a_einfedern.k
       100         6         2       100       0.0         0       0.9       0.0
$
$: SET_NODE 100 is in include file Camry_V1_ag06a_einfedern.k
       100         7         2       100       0.0         0       0.7       0.0
$: SET_NODE 100 is in include file Camry_V1_ag06a_einfedern.k
$ ==========
$ LOAD cards
$ ==========
*LOAD_BODY_Z
       102    9810.0         0
$ =============
$ CONTACT cards
$ =============
*CONTACT_AUTOMATIC_SURFACE_TO_SURFACE_MORTAR_ID
       100tires2ground
   2000008  10000001         2         3         0         0         1         1
       0.3       0.0       0.0       0.0       0.0         0       0.0       0.0
       0.0       0.0       0.0       0.0       0.0       0.0       0.0       0.0
$: Cross-reference summary for SET_PART 2000008
$:---------------------------------------------
$: CONTACT 2
*SET_PART_LIST
   2000008       0.0       0.0       0.0       0.0
   2000487   2000211   2000490   2000367   2000488   2000360   2000363   2000489
*TITLE
CCSA TOYOTA Yaris STATIC shock absorber loading
*END

Loadcase

animated result iso