4. B modeling#
4.1. Characteristics of modeling#
An expansion of the measurement is carried out using an expansion base composed of the first six eigenmodes calculated on the initial numerical model.
We use 3D modeling for the tube and DIS_T modeling for the supports.
4.2. Characteristics of the mesh#
The mesh contains 8680 elements of type HEXA8 and 20 elements of type POI1.
4.3. Tested sizes and results#
For the first six modes of the tube, the dot product between the extended modal deformation field and the modal deformation field calculated with the initial numerical model is tested.
Identification |
Reference type |
Reference value |
Mode 1 |
“ANALYTIQUE” |
1 |
Mode 2 |
“ANALYTIQUE” |
1 |
Mode 3 |
“ANALYTIQUE” |
1 |
Mode 4 |
“ANALYTIQUE” |
1 |
Mode 5 |
“ANALYTIQUE” |
1 |
Mode 6 |
“ANALYTIQUE” |
1 |