8. F modeling#
8.1. Characteristics of modeling#
In this modeling, we use the operator DYNA_VIBRA (see [U4.53.03]) with the relationship DIS_CHOC. The integration diagram is DEVOGE.
This modeling corresponds to the D modeling, in which the AMOR_REDUIT option is activated to test the value of AMOR_TAN is well calculated. The rest of the data layout remains the same as the D modeling.
AMOR_MODAL =_F (AMOR_REDUIT =0.01,),
8.2. Characteristics of the mesh#
Number of knots: 2
Number of meshes and types: 2 POI1
8.3. Tested sizes and results#
Values of the movements in the direction of the oscillator for the approximate times of change in the sign of the speed over the time period \((0;0.2s)\).
Identification |
moment (s) |
Reference of Non regression |
\(\mathrm{DY}=\mathrm{r2}\mathrm{cos45}\) |
|
-0.0004839984335835559 |
\(\mathrm{DY}=\mathrm{r3}\mathrm{cos45}\) |
|
0.00037058423338897446 |
\(\mathrm{DY}=\mathrm{r4}\mathrm{cos45}\) |
|
-0.0002606802712058347 |
\(\mathrm{DY}=\mathrm{r5}\mathrm{cos45}\) |
|
0.00015418169719420954 |