3. Modeling A#
3.1. Characteristics of modeling#
Along the beam, we have \(\mathrm{DY}=\mathrm{DZ}=\mathrm{DRX}=\mathrm{DRY}=0\).
At the base, all degrees of freedom are blocked.
3.2. Characteristics of the mesh#
The mesh consists of 21 nodes and 20 Timoshenko beam elements.
3.3. Tested sizes and results#
Natural bending frequencies
Movement \((m)\) : with \(\mathrm{Fx}=1000\)
CASTEM |
|
|
PERMAS (1) |
SYSTUS (1) |
ABAQUS |
Average value |
ASTER |
Variance (%) Value average/ ASTER |
|
0.039 |
0.038 |
0.041 |
0.041 |
0.038 |
0.038 |
0.034 |
0.0344 |
—9.4 |
—9.4 |
3.4. notes#
Definitive problems between internal forces and constraints do not allow the results of ASTER to be compared with other codes (bending moment and shear force).