5. C modeling#
5.1. Characteristics of modeling#
Discreet element of translational rigidity
Characteristics of the elements
DISCRET: |
with nodal masses |
M_T_D_N |
and stiffness matrices |
K_T_D_L |
Boundary conditions:
in all nodes |
DDL_IMPO: |
(TOUT: “OUI” DY: 0., DZ: 0.) |
at the end node \(A\) |
(GROUP_NO: A DX: 0.) |
Node names:
\(\mathit{Point}A\mathrm{=}\mathit{N1}\) |
|
\(\mathit{Point}B\mathrm{=}\mathit{N2}\) |
|
\(\mathit{Point}C\mathrm{=}\mathit{N3}\) |
|
5.2. Characteristics of the mesh#
Number of knots: 3
Number of meshes and types: 2 SEG2
5.3. Tested sizes and results#
Natural frequencies and reduced damping.
Natural frequencies:
Order Number |
Reference |
Aster |
% Difference |
1 |
6.4537 |
6.44568 |
—0.124 |
2 |
15.5806 |
1.55612 |
—0.124 |
Reduced amortization:
Order Number |
Reference |
Aster |
% Difference |
1 |
0.05 |
0.05 |
—1.39E-14 |
2 |
0.05 |
0.05 |
2.78E-14 |