SLIDE 1
APA shipping frame check
Giuseppe Gallo Fermilab
17 Dec 2019
FEA model – Mesh and BCs
2
Only Brick element – 30 mm size FEA model All the connections between elements are made through bonded contacts
check Giuseppe Gallo Fermilab 17 Dec 2019 FEA model Mesh and BCs - - PowerPoint PPT Presentation
check Giuseppe Gallo Fermilab 17 Dec 2019 FEA model Mesh and BCs - - PowerPoint PPT Presentation
APA shipping frame check Giuseppe Gallo Fermilab 17 Dec 2019 FEA model Mesh and BCs FEA model Only Brick element 30 mm size All the connections between elements are made through bonded contacts 2 FEA model Mesh and BCs
SLIDE 2
SLIDE 3
FEA model – Mesh and BCs
3
Constraint applied to the upper anchor and gravity load (2x g)
SLIDE 4
FEA model – Mesh and BCs
4
Top APA – COG and Total mass 554.8kg
SLIDE 5
FEA model – Mesh and BCs
5
Top APA – Reaction forces FEA sub-model of APA and Mounting points Reaction forces produced by the sub-model
SLIDE 6
FEA model – Mesh and BCs
6
Bottom APA – COG and Total mass 567.5kg
SLIDE 7
FEA model – Mesh and BCs
7
Bottom APA – Reaction forces FEA sub-model of APA and Mounting points Reaction forces produced by the sub-model
SLIDE 8
Case A – Lifting points heavily shifted from COG – (2 x gravity)
8
Utot Ux Uy Uz
SLIDE 9
Case A – Lifting points heavily shifted from COG – (2 x gravity)
9
V-Mises Stresses Local mesh need to be revised to refine the stress peaks. Current stresses value can be considered as indicative value only.
SLIDE 10
Case B – Lifting point almost in line to the COG – (1 x gravity)
10
Utot Ux Uy Uz
SLIDE 11
11
V-Mises Stresses
Case B – Lifting point almost in line to the COG – (1 x gravity)
Local mesh need to be revised to refine the stress peaks. Current stresses value can be considered as indicative value only.
SLIDE 12
Case C – Lifting point almost in line to the COG with symmetric mass value – (2 x gravity)
12
Utot Ux Uy Uz
SLIDE 13
13
V-Mises Stresses
Case B – Lifting point almost in line to the COG – (2 x gravity)
Local mesh need to be revised to refine the stress peaks. Current stresses value can be considered as indicative value only.
SLIDE 14
14
All the technical aspects and information discussed in this presentation have the scope to provide support and validation to the structural FEA model provided by UK group.