3. Modeling A#

3.1. Characteristics of modeling#

3D Modeling_ FAISCEAU

Boundary conditions:

Case without fluid:

GROUP_MA: Sh DX: 0 DY: 0 DZ: 0 DZ: 0 DRX: 0 DRY: 0 DRZ: 0 NOEUD N1: PHI: 0)

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”)

3.2. Characteristics of the mesh#

The mesh of the homogenized medium used, for both cases: with or without fluid, is represented by [fig 3.2-a].

It has 48 HEXA8 stitches.

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

_images/100007A40000124B00000DD93C72807D8F3D3463.svg

Figure 3.2-a: mesh

3.3. Tested values#

Case without fluid:

Order Number

Size and Unit

Reference

1, 2 and 6

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

3.3333

19 and 20

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

9.2584

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