3. Modeling A#
3.1. Characteristics of modeling#
Modeling POU_D_T.
10 beam elements are used:
in all the nodes:
at node \(A\):
at node \(B\): shock conditions
CHOC =_F (
NOEUD_1 = B
OBSTACLE = map
ORIG_OBST = (0.783, 0.1, 0.)
NORM_OBST = (1., 0., 0.,.)
JEU = 0.1
RIGI_NOR = 0.
RIGI_TAN = k
AMOR_NOR = 0.
COULOMB = 0.
)
Modal synthesis with 10 clean modes, time not used \(\mathrm{dt}=1.E-5s\).
Numerical integration algorithm: EULER
3.2. Characteristics of the mesh#
Number of knots: 11
Number of meshes and types: 10 SEG2
3.3. notes#
Number of modes used for modal overlay: 10.
3.4. Tested sizes and results#
Transverse movements of the end of the beam for the first 12 calculation time steps.
Identification |
Reference |
\(k=18000N/m\) |
— 2.66 E-3 |
— 4.33 E-3 |
|
— 4.92 E-3 |
|
— 4.78 E-3 |
|
— 3.82 E-3 |
|
— 2.87 E-3 |
|
— 2.71 E-3 |
|
— 3.09 E-3 |
|
— 3.41 E-3 |
|
— 3.36 E-3 |
|
— 2.64 E-3 |
|
— 7.42 E-4 |
|
\(k=45000N/m\) |
— 2.25 E-3 |
— 2.66 E-3 |
|
— 1.96 E-3 |
|
— 1.15 E-3 |
|
— 1.24 E-4 |
|
— 3.64 E-4 |
|
— 2.01 E-3 |
|
— 2.74 E-3 |
|
— 1.89 E-3 |
|
— 3.52 E-4 |
|
|
|
|