4. B modeling#
4.1. Characteristics of modeling#
The model consists of two plates corresponding to the mean plane of each of the two layers of the reference model. To represent these two plates, we start from the grid of the drawing plane that we offset from the distances \(0.1m\) and \(–0.2m\).
Plaq2 medium plane
\(\mathrm{A3}\)
\(\mathrm{A4}\)
\(d=0.1m\)
\(d=-0.2m\)
Design plan
\(\mathrm{A1}\)
\(\mathrm{A2}\)
Plaq1 Medium Plan
The elements used are plate DKQ elements.
4.2. Characteristics of the mesh#
Node coordinates:
Knot |
\(X\) |
|
|
\(\mathrm{A1}\) |
|||
\(\mathrm{A2}\) |
|||
\(\mathrm{A3}\) |
|||
\(\mathrm{A4}\) |
67 knots
50 DKQ (QUAD4) meshes
4.3. Tested sizes and results#
Identification |
Reference Type |
Reference |
Tolerance \((\text{\%})\) |
|
Movement |
||||
DZ (\(\mathrm{A3}\)) |
“ANALYTIQUE” |
-9.259259 10—5 |
0.5 |
|
Natural frequencies |
||||
Frequency 1st mode |
“NON_REGRESSION” |
13.7 |
0.1 |
|
Frequency 2nd mode |
“NON_REGRESSION” |
66.65 |
0.1 |
|
Frequency: 3rd mode |
“NON_REGRESSION” |
85.49 |
0.1 |
|
Frequency 4th mode |
“NON_REGRESSION” |
100.1 |
0.1 |
|
Widescreen efforts |
||||
\(\mathit{MXX}\) |
\(\mathit{N60}\) |
“ANALYTIQUE” |
0.1 |
|
\(\mathit{QX}\) |
\(\mathit{N60}\) |
“ANALYTIQUE” |
—500. |
0.1 |