4. B modeling#
4.1. Characteristics of B modeling#
Figure 4.1-1: Meshing the geometry of the problem.
The beam is divided into two equal parts. Each half is represented by a substructure. These are generated using the Craig-Bampton method. Its modal base consists of normals with blocked interfaces, 10 in number, and static constrained modes relating to points such as \(X=L\) and \(Y=h/2\) (we only consider at these points the degrees of freedom not fixed by the boundary conditions).
4.2. Characteristics of the mesh#
Number of knots: 557
Number of meshes and types: 80 HEXA20
4.3. Tested sizes and results#
Mode |
Reference Value |
Reference Type |
Tolerance (%) |
1 |
|
“ANALYTIQUE” |
\(1.0\) |
2 |
|
“ANALYTIQUE” |
\(1.0\) |
3 |
|
“ANALYTIQUE” |
\(1.0\) |
4 |
|
“ANALYTIQUE” |
\(1.0\) |
5 |
|
“ANALYTIQUE” |
\(1.0\) |