9. G modeling#

9.1. Characteristics of modeling#

_images/1000000000000FA0000008CA273874BE9D6A3AB2.png

Figure 9.1-1

9.2. Boundary conditions#

Embedding PT_5 (DX=DY=DZ= DRX = = DRY = DRZ =0)

Support PT_10 (DY=DZ=0)

Support PT_20 (DX=DZ=0)

Embedding PT_30 (DX=DY=DZ= DRX = = DRY = DRZ =0)

9.3. Characteristics of the mesh#

Number of knots: 25

Number of meshes and types: 24 POU_D_T

9.4. Tested sizes and results#

Uncertainties about the results using the reference analytical solution:

Identification

Reference AFNOR

Pipestress Value

Aster Value

Aster Variance- AFNOR (%)

Frequency (\(\mathit{Hz}\)) Mode 1

33.4

33.4

33.168

33.165

0.7035928

Frequency (\(\mathit{Hz}\)) Mode 2

94

94

93.989

93.882

0.1255319

Frequency (\(\mathit{Hz}\)) Mode 3

100

100

98.785

98.628

1.3720000

Frequency (\(\mathit{Hz}\)) Mode 4

180

180

181.979

182.542

1.4122222

Table 9.4-1

9.5. Deformed from mode 1#

_images/10000201000002E40000026A4EF2084DC78D02EB.png

Figure 9.5-1