Airbag III
In this example *AIRBAG_SIMPLE_AIRBAG_MODEL keyword is used to pressurize an airbag.
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Airbag III
In this example *AIRBAG_SIMPLE_AIRBAG_MODEL keyword is used to pressurize an airbag.
*AIRBAG_SIMPLE_AIRBAG_MODEL_1 *CONTROL_ENERGY *CONTROL_TERMINATION *DATABASE_ABSTAT *DATABASE_BINARY_D3PLOT *DATABASE_BINARY_D3THDT *DATABASE_EXTENT_BINARY *DATABASE_GLSTAT *DATABASE_HISTORY_NODE *DATABASE_MATSUM *DATABASE_NODOUT *DATABASE_RWFORC *DEFINE_BOX *DEFINE_CURVE *ELEMENT_SHELL *END *KEYWORD *LOAD_BODY_Z *MAT_PIECEWISE_LINEAR_PLASTICITY *MAT_RIGID *NODE *PART *RIGIDWALL_PLANAR *SECTION_SHELL *SET_PART_LIST *TITLE
*KEYWORD
*TITLE
Tire/Airbag Model
$
$
$$$$$$
$ name part #
$ ------------------------
$ tire tire-fl 65
$ wheel wheel-fl 66
$
$ Units: mm, kg, ms, kN, GPa, kN-mm
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*CONTROL_TERMINATION
$ endtim
100.0
$
*CONTROL_ENERGY
$ hgen rwen slnten rylen
2 2 2 2
$
$
*DATABASE_BINARY_D3PLOT
$ dt lcdt
2.0
$
*DATABASE_EXTENT_BINARY
$ neiph neips maxint strflg sigflg epsflg rltflg engflg
$
$ cmpflg ieverp beamip dcomp shge stssz
1
$
*DATABASE_BINARY_D3THDT
$ dt lcdt
999999
$
*DATABASE_ABSTAT
$ dt
0.1
$
*DATABASE_GLSTAT
$ dt
0.1
$
*DATABASE_MATSUM
$ dt
0.1
$
*DATABASE_NODOUT
$ dt
0.1
$
*DATABASE_HISTORY_NODE
$
$ node location
$ 65016 - at minimum z (on tire)
$ 65088 - at maximum z (on tire)
$ 65124 - at maximum x (on tire)
$ 65052 - at minimum x (on tire)
$ 65474 - center of wheel
$
$ id1 id2 id3 id4 id5 id6 id7 id8
65016 65088 65124 65052 65474
$
*DATABASE_RWFORC
$ dt
0.1
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*AIRBAG_SIMPLE_AIRBAG_MODEL_1
$ sid sidtyp rbid vsca psca vini mwd spsf
10 1
$
$ cv cp t lcid mu a pe ro
7.17000+2 1.00400+3 300.0 20 0.700 0.000 0.00010 1.2040-09
$
$ lou
0
$
*SET_PART_LIST
$ sid
10
$ pid1
65
$
$
$$$$ MASS FLOW RATE - tires
$
*DEFINE_CURVE
$ lcid
20
$ abscissa ordinate
0.0 0.0
50.0 0.0
80.0 0.01
100.0 0.01
$ 100.0 0.137500
$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*PART
$ pid sid mid
$
tire-fl
65 65 65
wheel-fl
66 66 66
*MAT_PIECEWISE_LINEAR_PLASTICITY
$ mid ro e pr sigy fail
65 4.0598e-6 2.461 0.323 0.025 1.0
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
$ c p lcss lcsr
$
$ Plastic stress/strain curve
0.000 0.010 0.029 0.070 0.400 1.000
0.000 0.025 0.030 0.033 0.036 0.030
$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
*MAT_RIGID
66 7.8530e-6 210.0 0.30
$ cmo con1 con2
$lco or a1 a2 a3 v1 v2 v3
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
*SECTION_SHELL
$ sid elform shrf nip
65 9 3.0
$ t1 t2 t3 t4
3.0 3.0 3.0 3.0
$
*SECTION_SHELL
$ sid elform shrf nip
66 2 3.0
$ t1 t2 t3 t4
10.6 10.6 10.6 10.6
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
*LOAD_BODY_Z
10,9.810e-3
*DEFINE_CURVE
10,2
0.00000000000000E+00 1.0000000000000E+00
5.00000000000000E+01 1.0000000000000E+00
1.00000000000000E+03 1.0000000000000E+00
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*RIGIDWALL_PLANAR
0,0,99
0.0,0.0,-360.0,0.0,0.0,-300.0,1.0
*DEFINE_BOX
99,-1.0e9,1.0e9,-1.0e9,1.0e9,-360.0,-330.0
$
*NODE
$
*ELEMENT_SHELL
$
*ELEMENT_SHELL
$
*END