4. B modeling#
4.1. Characteristics of modeling#
Same as modeling A, but using operators CREA_ELEM_SSD and ASSE_ELEM_SSD. The modal calculation of the direct model (not substructured) has not been repeated.
4.2. Tested sizes and results#
The values of the first 7 frequencies when stopped are shown in the table below.
Freq Number |
Calculus ASTER substructured calculation |
Calculation CADYRO |
\(F\) ( \(\mathrm{Hz}\) ) |
\(F\) ( \(\mathrm{Hz}\) ) |
|
1 |
1.00712E+02 |
1.00717E+02 |
2 |
1.00861E+02 |
1.00866E+02 |
3 |
2.21761E+02 |
2.21064E+02 |
4 |
2.59264E+02 |
2.59143E+02 |
5 |
3.51439E+02 |
3.42981E+02 |
6 |
3.92474E+02 |
3.92524E+02 |
7 |
3.99088E+02 |
3.97556E+02 |
Table 4.2-1 : Natural frequencies obtained by dynamic substructuration