4. B modeling#

4.1. Characteristics of modeling#

3D Modeling_ FAISCEAU

Boundary conditions:

Case with fluid:

GROUP_MA: Sh DZ: 0 DRX: 0:0 DRY: 0 DRZ: 0 NOEUD N1: PHI: 0) LIAISON_UNIF: (GROUP_MA: Sh DDL: “DX”) LIAISON_UNIF: (GROUP_MA: Sh DDL: “DY”)

4.2. Characteristics of the mesh#

The mesh of the homogenized medium used, for both cases: with or without fluid, is represented by [fig 5.2-a].

It has 48 HEXA20 stitches.

The mesh contains 9 lines parallel to the average fiber of each beam.

_images/1000076A00000E0E00000E290DED5997C25C13AD.svg

Figure 5.2-a: mesh

4.3. Tested values#

Case with fluid:

Order Number

Size and Unit

Reference

1 and 2

frequency \((\mathrm{Hz})\)

0.6908

19 and 20

frequency \((\mathrm{Hz})\)

3.7871

Size and unit

Reference

Mass (\(\mathrm{kg}\))

12695.076

Inertia \({I}_{\mathrm{xx}}\) in \(G\)

18530.155

Inertia \({I}_{\mathrm{zz}}\) in \(G\)

1492.941