3. Modeling A#
3.1. Characteristics of modeling A#
The harmonic response (at \(1500\mathit{Hz}\)) is calculated on a physical basis and on the matrix projected onto the first fifteen eigenmodes of the structure.
The paver is modelled using solid elements \(\mathrm{3D}\)
3.2. Characteristics of the mesh#
Number of knots: 1764
Number of meshes:
QUAD4: 1040
HEXA8: 1200
Control node names and coordinates:
\(\mathit{N433}\): \((0.1575,0.125,0)\)
\(\mathit{N627}\): \((0.3325,0.05,0)\)
3.3. Tested sizes and results#
Identification |
Reference |
Reference type |
Tolerance |
|
Physical calculation: DX at node \(\mathit{N433}\) |
|
“AUTRE_ASTER” |
0.1% |
|
Projected matrix calculation:DX at node \(N433\) |
|
“AUTRE_ASTER” |
0.1% |
|
SIXX at Gauss point number 1 of mesh \(M1145\) |
|
“AUTRE_ASTER” |
0.1% |
|
SIXX to the \(N627\) knot of knit \(M1145\) |
|
“AUTRE_ASTER” |
0.1% |
|
EPXX at Gauss point number 1 of mesh \(M1145\) |
|
“AUTRE_ASTER” |
0.1% |
|
EPXX to the \(N627\) knot of knit \(M1145\) |
|
“AUTRE_ASTER” |
0.1% |
Note: the tests are done by inter-comparison between harmonic calculation and transient calculation on a physical basis.
We calculate the kinetic energy ECIN_ELEM of the \(M1145\) cell:
Option |
Component |
Reference |
Reference Type |
Tolerance |
ECIN_ELEM |
|
7.02862 10—7 |
|